The manufacturer’s record · Page 12 of 13
Original record summaries, dates and identifiers for this model-year. Records 1,101–1,200 of 1,292, ordered newest first. Dated records on this page: Dec 9, 2015–Apr 19, 2016.
Back to 2016 Chevrolet IMPALA problems & recallsThis archive includes service bulletins, warranty notices, software instructions and other communications. Records may repeat or supersede earlier instructions. A model-year association is not proof that a document covers every engine, trim, VIN or reported symptom, or that a repair is free.
NHTSA download snapshot: Sep 28, 2026. These are communication associations for this vehicle, not unique defects. How records are joined and counted.
NHTSA communication ID: 10083484
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. WHEN PERFORMING BATTERY PARASITIC DRAIN TEST, THERE MAY BE SOME CONFUSION AS TO WHAT THE NORMAL POWER CONSUMPTION READING SHOULD BE FROM THE ONSTAR SYSTEM.
Source components: ELECTRICAL SYSTEM.
Source record 10083484 at NHTSANHTSA communication ID: 10078735
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. WHEN PERFORMING BATTERY PARASITIC DRAIN TEST, THERE MAY BE SOME CONFUSION AS TO WHAT THE NORMAL POWER CONSUMPTION READING SHOULD BE FROM THE ONSTAR SYSTEM.
Source components: ELECTRICAL SYSTEM · ELECTRICAL SYSTEM:12V/24V/48V BATTERY.
Source record 10078735 at NHTSANHTSA communication ID: 10083847
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR A POSSIBLE RATTLE, TICK, OR KNOCK TYPE NOISE COMING FROM THE ENGINE.
Source components: ENGINE.
Source record 10083847 at NHTSANHTSA communication ID: 10078721
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSE AND REPAIR A POSSIBLE RATTLE, TICK, OR KNOCK TYPE NOISE COMING FROM THE ENGINE.
Source components: ENGINE.
Source record 10078721 at NHTSANHTSA communication ID: 10078720
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER WHEN A CUSTOMER MAY COMMENT THAT THEY WILL HAVE THE RADIO SHUT OFF, AND WHEN RESTARTING THE VEHICLE THE RADIO WILL TURN ON UNWANTED.
Source components: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
Source record 10078720 at NHTSANHTSA communication ID: 10078507
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS WARRANTY ADMINISTRATION BULLETIN PROVIDE POLICY INFORMATION ON USING THE EL-50313 MIDTRONICS GR8 BATTERY TESTER/CHARGER FOR DIAGNOSING BATTERY REPLACEMENTS AND MAINTAINING BATTERIES ON NEW VEHICLES IN DEALER INVENTORY.
Source components: ELECTRICAL SYSTEM:12V/24V/48V BATTERY · EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL.
Source record 10078507 at NHTSANHTSA communication ID: 10078506
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS INFORMATIONAL BULLETIN PROVIDES WARRANTY INFORMATION ON USING THE SERVICE PROGRAMMING SYSTEM (SPS) FOR PROGRAMMING CONTROL MODULES
Source components: ELECTRICAL SYSTEM:SOFTWARE.
Source record 10078506 at NHTSANHTSA communication ID: 10078504
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION INTERNAL ENGINE NOISE OR DAMAGE AFTER OIL FILTER REPLACEMENT
Source components: ENGINE.
Source record 10078504 at NHTSANHTSA communication ID: 10078502
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS WARRANTY ADMINISTRATION BULLETIN PROVIDES INFORMATION ON GMS POLICY ON PERFORMING GM COVERED VEHICLE SERVICES AND MAINTENANCE ON VEHICLES ORIGINATING/SOLD IN CANADA.
Source components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL.
Source record 10078502 at NHTSANHTSA communication ID: 10083853
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSING THE CONCERN WITH DIAGNOSTIC TROUBLE CODE P015A . THE VEHICLE MAY HAVE A SERVICE ENGINE SOON LIGHT ON THE CLUSTER.
Source components: ENGINE.
Source record 10083853 at NHTSANHTSA communication ID: 10083851
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSING THE CONCERN. THE VEHICLE MAY HAVE A SERVICE ENGINE SOON LIGHT ON OR REDUCED ENGINE POWER MESSAGE ON THE DIVER INFORMATION CENTER.
Source components: ENGINE.
Source record 10083851 at NHTSANHTSA communication ID: 10078680
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSING THE CONCERN WITH DIAGNOSTIC TROUBLE CODE P015A . THE VEHICLE MAY HAVE A SERVICE ENGINE SOON LIGHT ON THE CLUSTER.
Source components: ENGINE · POWER TRAIN:MANUAL TRANSMISSION.
Source record 10078680 at NHTSANHTSA communication ID: 10078679
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN ON THE STEPS TO DIAGNOSING THE CONCERN. THE VEHICLE MAY HAVE A SERVICE ENGINE SOON LIGHT ON OR REDUCED ENGINE POWER MESSAGE ON THE DIVER INFORMATION CENTER.
Source components: ENGINE.
Source record 10078679 at NHTSANHTSA communication ID: 10083585
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN NOT TO MAKE ANY REPAIRS OR REPLACE ANY PARTS. THE TECHNICIAN IS TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER TO REVIEW A CONCERN WHEN THE VEHICLE'S RADIO IS UNABLE TO SAVE A XM PRESET AFTER SAVING PRESETS.
Source components: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
Source record 10083585 at NHTSANHTSA communication ID: 10078481
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON THE PURPOSE OF MAGNETIC DRAIN PLUGS.
Source components: EQUIPMENT.
Source record 10078481 at NHTSANHTSA communication ID: 10078472
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON A NORMAL CONDITION ON TEMPERED GLASS OF SPOTS SHOWING ON THE REAR AND SIDE WINDOWS WHEN THE VEHICLE IS IN THE SUNLIGHT.
Source components: VISIBILITY:GLASS, SIDE/REAR.
Source record 10078472 at NHTSANHTSA communication ID: 10083583
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN TO INSPECT THE CONNECTOR AT THE KR14 BRAKE BOOSTER PUMP RELAY. VEHICLE MAY HAVE A SERVICE BRAKE ASSIST MESSAGE ON THE DRIVERS INFORMATION CENTER (DIC) OR A HARD BRAKE PEDAL ON A COLD START UP.
Source components: SERVICE BRAKES.
Source record 10083583 at NHTSANHTSA communication ID: 10078668
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN TO INSPECT THE CONNECTOR AT THE KR14 BRAKE BOOSTER PUMP RELAY. VEHICLE MAY HAVE A SERVICE BRAKE ASSIST MESSAGE ON THE DRIVERS INFORMATION CENTER (DIC) OR A HARD BRAKE PEDAL ON A COLD START UP.
Source components: SERVICE BRAKES, HYDRAULIC:PEDALS AND LINKAGES.
Source record 10078668 at NHTSANHTSA communication ID: 10078435
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATIONAL BULLETIN PROVIDES INFORMATION THAT MAY BE HELPFUL WHEN ADDRESSING UNDERBODY COMPONENT CORROSION WITH CUSTOMERS.
Source components: EQUIPMENT · STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS.
Source record 10078435 at NHTSANHTSA communication ID: 10083512
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON DIAGNOSING THE CONCERN. VEHICLE'S SUNROOF OPERATION INTERMITTENT, BIND, NOISE, AUTO-REVERSE, AND/OR WATER LEAKS.
Source components: EQUIPMENT · VISIBILITY.
Source record 10083512 at NHTSANHTSA communication ID: 10078604
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON DIAGNOSING THE CONCERN. VEHICLE'S SUNROOF OPERATION INTERMITTENT, BIND, NOISE, AUTO-REVERSE, AND/OR WATER LEAKS.
Source components: ELECTRICAL SYSTEM · STRUCTURE:BODY · VISIBILITY:SUN/MOON ROOF ASSEMBLY.
Source record 10078604 at NHTSANHTSA communication ID: 10083580
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE DEALER NOT TO REPLACE THE RADIO INTEGRATED CENTER STACK FOR THE CONDITION OF THE VOLUME OR TUNE KNOB BROKEN OR WILL NOT STAY ATTACHED. THE DEALER IS TO CONTACT THE GENERAL MOTORS TECHNICAL ASSISTANCE CENTER FOR THE REPLACEMENT KNOB.
Source components: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
Source record 10083580 at NHTSANHTSA communication ID: 10083579
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION IS TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER. THE CUSTOMER IS UNABLE TO SELECT RADIO PRESETS FROM THE USB OR SD CARD AS THEY ARE GREYED OUT.
Source components: EQUIPMENT:ELECTRICAL.
Source record 10083579 at NHTSANHTSA communication ID: 10083575
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION IS TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER. CUSTOMERS MAY COMMENT THAT THEY WILL HAVE THE RADIO SHUT OFF, AND WHEN RESTARTING THE VEHICLE THE RADIO WILL TURN ON UNWANTED.
Source components: ELECTRICAL SYSTEM · EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
Source record 10083575 at NHTSANHTSA communication ID: 10078590
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION IS TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER. CUSTOMERS MAY COMMENT THAT THEY WILL HAVE THE RADIO SHUT OFF, AND WHEN RESTARTING THE VEHICLE THE RADIO WILL TURN ON UNWANTED.
Source components: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
Source record 10078590 at NHTSANHTSA communication ID: 10078588
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION IS TO CONTACT GM TECHNICAL ASSISTANCE CENTER TO REPORT THE CONCERN AND OBTAIN A CASE NUMBER. THE CUSTOMER IS UNABLE TO SELECT RADIO PRESETS FROM THE USB OR SD CARD AS THEY ARE GREYED OUT.
Source components: ELECTRICAL SYSTEM:SOFTWARE · EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY.
Source record 10078588 at NHTSANHTSA communication ID: 10078587
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE DEALER NOT TO REPLACE THE RADIO INTEGRATED CENTER STACK FOR THE CONDITION OF THE VOLUME OR TUNE KNOB BROKEN OR WILL NOT STAY ATTACHED. THE DEALER IS TO CONTACT THE GENERAL MOTORS TECHNICAL ASSISTANCE CENTER FOR THE REPLACEMENT KNOB.
Source components: EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY · EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
Source record 10078587 at NHTSANHTSA communication ID: 10078434
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS INFORMATIONAL BULLETIN PROVIDE INFORMATION ON THE OPERATING CHARACTERISTICS OF A MANUAL TRANSMISSION.
Source components: POWER TRAIN:MANUAL TRANSMISSION.
Source record 10078434 at NHTSANHTSA communication ID: 10078430
NHTSA source summary · Original PDF not reviewed by Recallfolio
"THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO INSPECT THE STEERING GEAR FOR A NORMAL CONDITION OF GREASE OR SEALANT ON EXTERIOR CASE OF GEAR DUE TO THE MANUFACTURING PROCESS."
Source components: STEERING:ELECTRIC POWER ASSIST SYSTEM.
Source record 10078430 at NHTSANHTSA communication ID: 10078424
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS INFORMATIONAL BULLETIN PROVIDES INFORMATION ON CHANGES IN EXHAUST TONE FOR ACTIVE FUEL MANAGEMENT ENGINES WHEN IN THREE OR FOUR CYLINDER MODE.
Source components: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM.
Source record 10078424 at NHTSANHTSA communication ID: 10078420
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS TECHNICAL BULLETIN PROVIDES A PROCEDURE TO REPROGRAM THE RADIO TO CORRECT A CUSTOMER CONCERN OF RADIO INOPERATIVE, BLUE SCREEN, AM CLIPPING NOISE, HD ON/OFF STATUS NOT RETAINED IN STATIONS, TIME LAG ON TRANSITIONS, NO AUDIO WITH INTERNAL AMP, PARK ASSIST SYMBOL POSITION WRONG IN REAR VIEW CAMERA.
Source components: ELECTRICAL SYSTEM · ELECTRICAL SYSTEM:SOFTWARE.
Source record 10078420 at NHTSANHTSA communication ID: 10113973
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that have a Diagnostic Trouble Code B101D stored in Telematics Communication Interface Control Module. Technician will check Global Warranty Management system for customer satisfaction program 15086 status. If the status of the customer satisfaction program 15086 was not completed follow the steps to get the Telematics Communication Interface Control Module replaced. If the status of customer satisfaction program 15086 is found completed contact General Motors Technical Assistance Center OnStar group for further assistance.
Source components: ELECTRICAL SYSTEM:SOFTWARE.
Source record 10113973 at NHTSANHTSA communication ID: 10113970
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician that some vehicles may have rattle, tick, or knock type noise. If there are any drivability concerns they should be addressed prior to the following diagnostic progression. Technician will take a sound file or video with sound of the noise prior to dis-assembly. Technician may find this noise hard to isolate to one area in the engine. There are four different steps to take to diagnosis the concern. Technician will perform injector diagnosis to ensure there are no leaking injectors causing a noise due to excessive fuel in any one cylinder. Replace any out of specification injectors the reevaluate for the noise. Technician will remove the intake manifold and visually inspect for excessive carbon on the intake valve stems and top of the valve causing noise. If carbon is present then follow the latest version of PIP5029 to clean the valves or replace heads as needed. Technician will remove the cam cover of the affected bank (both if needed) to inspect for soft or spongy stationary hydraulic lash adjusters. Push down on the rocker end at the stationary hydraulic lash adjusters to test for soft or spongy. If soft or spongy stationary hydraulic lash adjusters are found, carefully remove the affected head and inspect the oil passage below the head gasket for debris. If debris is found, inspect the camshaft caps for wear or discoloration due to lack of oil. During inspection if wear or discoloration is found then replace the cylinder head assembly with camshafts. If there is no wear or discoloration, clean the oil passages and replace the head gasket. Technician will use chassis ears or a stethoscope; listen to the right and left side of the engine. Once the noise is isolated or if unable to isolate, remove the piston and rod assemblies from the affected bank(s) to inspect for either; a loose rod bushing in the rod, or a loose wrist pin in the bushing. If this is found, replacing the piston an
Source components: ENGINE AND ENGINE COOLING.
Source record 10113970 at NHTSANHTSA communication ID: 10112831
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on chemical staining, pitting, and corrosion on wheels and the proper cleaners to use to fix the conditions due to multiple causes.
Source components: WHEELS.
Source record 10112831 at NHTSANHTSA communication ID: 10113963
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about the multiple alternative gaseous fuel vehicles General Motors offers. Chevrolet Express and GMC Savana vans 2011 through 2016 offered a dedicated Compressed Natural Gas system. Refer to the latest version of PI0417 for more information. Chevrolet Express and GMC Savana 3500, 4500 Cutaway Vans 2012 through 2016 offered a dedicated Liquefied Petroleum Gas system. Refer to the latest version of PI0722 for more information. Chevrolet Silverado and GMC Sierra's 2013 through 2016 offered a combination of Compressed Natural Gas and Gasoline fuel systems. Refer to the latest version of PI0834 for more information. Chevrolet Impala's 2015 through 2016 offered a combination of Compressed Natural Gas and Gasoline fuel systems. Refer to the latest version of PI1330 for more information. The Compressed Natural Gas fuel system operates under high pressure up to 3600 psi. The Liquefied Petroleum Gas fuel system operates under high pressure up to 300 psi. Service and repair of this system should only be performed by a General Motors trained alternative fuels service technician with the proper knowledge and tools.
Source components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL · FUEL SYSTEM, GASOLINE.
Source record 10113963 at NHTSANHTSA communication ID: 10112829
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary informational bulletin provides information on GM is implementing a new service strategy that uses a set of universal coaxial repair kits to service vehicles. This only applies to cable used for high frequency signals, such as cellular (OnStar®), satellite radio (XM) and GPS (navigation). The kits do NOT apply to the AM/FM cables.
Source components: EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM).
Source record 10112829 at NHTSANHTSA communication ID: 10112821
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary informational bulletin provides information on GM Accessory Remote start not working with onstars remotelink phone applications
Source components: ELECTRICAL SYSTEM.
Source record 10112821 at NHTSANHTSA communication ID: 10112819
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on Identifying Non-GM (Aftermarket) Engine Calibrations for Gasoline Engines Using Tech 2® or GDS 2 (U.S. and Canada)
Source components: ENGINE.
Source record 10112819 at NHTSANHTSA communication ID: 10113957
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician that some vehicles intermittently the favorites saved from a USB drive or SD card are grayed out and not selectable. Please communicate to the customer that we apologize for this inconvenience and that General Motors is currently evaluating this concern.
Source components: ELECTRICAL SYSTEM:SOFTWARE.
Source record 10113957 at NHTSANHTSA communication ID: 10113956
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician that some vehicles may have a radio that turns on unwanted at start up. If the radio was shut off before the vehicle was shut off and at start up the radio turns on, please communicate to the customer that we apologize for this inconvenience, and that General Motors is working on a solution for this concern.
Source components: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
Source record 10113956 at NHTSANHTSA communication ID: 10113955
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician that some vehicles may have a radio display that is covered when the radio station favorites list is maximized. This is a normal operating characteristic and no repair attempt should be made. The hidden screen functions will operate again after the user minimizes the favorites list by dragging it to the bottom of the display.
Source components: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
Source record 10113955 at NHTSANHTSA communication ID: 10113954
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician with the steps to diagnose and repair vehicles that may have Service Engine Soon lamp or reduced engine power message came on and was cleared after cycling the key. Also technician may find a P228C set as current or history, and a prior history of High Pressure Fuel Pump replacement, and the customer has been using E85 fuel. If the Diagnostic Trouble Code is current follow Service Information instruction for the repair. If the code is set in history and there are no current drivability concerns take a large fuel sample and let it sit for a couple of hours looking for contamination. Verify the fuel pressure using a scan tool the actual and desired fuel pressures are very close to the same. If contamination is found in the tank then completely flush the fuel system and add e-10 fuel. Also remove the high pressure fuel pump inlet line from both ends. Using regulated air down to about 60 pounds per square inch or lower, blow through the inlet side of this pipe / hose. Inspect for restriction in the check valve built into this hose. If restricted then replace the pipe run a tank of premium fuel through the vehicle and reevaluate the concern.
Source components: FUEL SYSTEM, GASOLINE.
Source record 10113954 at NHTSANHTSA communication ID: 10112801
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on Police Package Vehicles, Daytime Running Lamps (DRL), Automatic Headlights (AHL), Dome and Courtesy Lamps, Trunk Release, Speed Limiter - Programmable Options - Obtaining Calibrations
Source components: EXTERIOR LIGHTING:HEADLIGHTS.
Source record 10112801 at NHTSANHTSA communication ID: 10112795
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on what is needed to be prepared for TAC, caller preparedness and checklists and contacting U.S. technical Assistance and the use of strategy based diagnostics
Source components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL.
Source record 10112795 at NHTSANHTSA communication ID: 10112791
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin provides information on Courtesy Transportation and Roadside Assistance Programs
Source components: EQUIPMENT.
Source record 10112791 at NHTSANHTSA communication ID: 10112789
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides a procedure to relearn the power folding mirriors and road test to correct a conditon of power fold away mirriors glass shakes or flutters at normal driving speeds
Source components: VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR.
Source record 10112789 at NHTSANHTSA communication ID: 10112785
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on Original Equipment Batteries Part Number and ACDelco Replacement Battery Approved Warranty Part Numbers
Source components: ELECTRICAL SYSTEM:12V/24V/48V BATTERY · EQUIPMENT.
Source record 10112785 at NHTSANHTSA communication ID: 10112779
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on vehicles may rock or move slightly forward or rearward while in Park at start up after cold soak and that this is considered a normal conditon and no repairs are necessary
Source components: ELECTRICAL SYSTEM:STARTER ASSEMBLY.
Source record 10112779 at NHTSANHTSA communication ID: 10113914
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about gasoline powered cars, mid-size trucks, light duty trucks, and heavy duty trucks with premature catalytic converter failures. It is recommended to inspect for a poor crimp on the coil grounds ring terminal at the engine block for the bank with the concern and repair the wire.
Source components: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR.
Source record 10113914 at NHTSANHTSA communication ID: 10112773
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on If the radar does not see any vehicles, structures, or objects for 15-25 minutes of driving, the system may think its blocked and display the ?Side Object Detection System Disabled? message.
Source components: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL.
Source record 10112773 at NHTSANHTSA communication ID: 10112772
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides a procedure on how to take the vehicles out of transport mode for vehicles with the condition of Transport Mode On Message Displayed in Driver Information Center (DIC) and/or Battery Light is Flashing
Source components: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL.
Source record 10112772 at NHTSANHTSA communication ID: 10113894
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides the technician with information on vehicles with navigation radio Regular Production Option Code IO6 or UY4 that defaults to West Virginia instead of Virginia on a manual entry. General Motors engineering is currently working on a solution for this concern.
Source components: EQUIPMENT.
Source record 10113894 at NHTSANHTSA communication ID: 10113893
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician when the radio display is continuously flashing on and off every five seconds the Human Machine Interface will need to be replaced.
Source components: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
Source record 10113893 at NHTSANHTSA communication ID: 10112771
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on New Vehicle Pre-Delivery Inspection (PDI) - Delivering Quality Vehicles and Generating Higher CSi Scores
Source components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL.
Source record 10112771 at NHTSANHTSA communication ID: 10112770
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on Interior Cleaning - Instrument Panel (IP), Hard or Plastic Surfaces, Seats, Carpet, Leather, Vinyl, Fabric Cleaner, Stain Remover, Restorer - Product Availability
Source components: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL.
Source record 10112770 at NHTSANHTSA communication ID: 10112769
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on Battery Testing and Warranty Replacement Requirements (North America ONLY)
Source components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL.
Source record 10112769 at NHTSANHTSA communication ID: 10112768
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on how to properly maintain vehicles in the dealer inventory
Source components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL.
Source record 10112768 at NHTSANHTSA communication ID: 10112764
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty informational bulletin provides a list of all the required operating procedures and explains them out to what is acceptable and not.
Source components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL.
Source record 10112764 at NHTSANHTSA communication ID: 10116914
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on the proper mounting paste to apply to tires when mounting and balancing them to prevent conditions like Vibration Shortly After Tires are Mounted/Preventing Vibration from Wheel Slip (Tire Sliding on Wheel)
Source components: TIRES · WHEELS.
Source record 10116914 at NHTSANHTSA communication ID: 10116912
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides Information Regarding Servicing Components Located Near SIR Components and how to properly disable the SIR system for repairs at or near
Source components: EQUIPMENT:ELECTRICAL · EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL.
Source record 10116912 at NHTSANHTSA communication ID: 10095583
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN WITH THE STEPS NEED TO DIAGNOSE AND REPAIR VEHICLE THAT MAY HAVE A CONCERN WITH NAVIGATION ICON NOT SHOWING THE CORRECT LOCATION THEN JUMPING TO THE CORRECT LOCATION. THE POSITION INDICATOR MAY SHOW THE VEHICLE TURNING IN THE OPPOSITE DIRECTION OR MAY SHOW THE VEHICLE TRAVELING OFF THE ROAD. TECHNICIAN WILL INSPECT THE HUMAN MACHINE INTERFACE MOUNTING. FOLLOW SERVICE INFORMATION FOR THE CORRECT ORIENTATION OF THE HUMAN MACHINE INTERFACE.
Source components: EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM).
Source record 10095583 at NHTSANHTSA communication ID: 10116891
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on Clarification of Use - Dealer Empowerment Labor Operations and Customer Enthusiasm (U.S. Only)
Source components: EQUIPMENT ADAPTIVE/MOBILITY · EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL.
Source record 10116891 at NHTSANHTSA communication ID: 10116890
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides an out line on Headlamp, Tail Lamp, License Lamp or Fog/Driving Lamp Damage and what should be considered warranty replacement and not
Source components: EXTERIOR LIGHTING:BACK UP LIGHTS · EXTERIOR LIGHTING:BRAKE LIGHTS · EXTERIOR LIGHTING:HEADLIGHTS.
Source record 10116890 at NHTSANHTSA communication ID: 10116888
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on Unscheduled Supplemental Services (Including Flushing Services and Additives) and Proper Use of GM Simplified Maintenance Schedules (U.S. Only)
Source components: EQUIPMENT ADAPTIVE/MOBILITY.
Source record 10116888 at NHTSANHTSA communication ID: 10116886
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on Passenger Presence System (PPS) May Command Seat Belt Reminder Chime and Passenger Airbag Indicator On or Set DTC B101D When Electronic Devices or Conductive Objects are Placed on Front Passenger Seat
Source components: AIR BAGS · AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION.
Source record 10116886 at NHTSANHTSA communication ID: 10096026
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN ABOUT FINDING NEEDLE BEARINGS DURING AN OIL CHANGE. TECHNICIAN WILL GAIN ACCESS TO THE ROLLER ROCKERS TO INSPECT THEM. ONLY REPLACE THE ROLLER ROCKER THAT IS MISSING NEEDLE BEARINGS. BE SURE TO CLEAN THE OIL DRAINS TO RETRIEVE THE NEEDLE BEARINGS. EACH ROLLER ROCKER HAS 66 BEARINGS.
Source components: EQUIPMENT.
Source record 10096026 at NHTSANHTSA communication ID: 10116878
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides Information on Inappropriate Warranty Claims Submitted for Damaged Radios and Instrument Panel Clusters (IPCs)
Source components: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL · EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
Source record 10116878 at NHTSANHTSA communication ID: 10116877
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides a procedure to replace the sunroof window motor for vehicles with the condition of sunroof or sunshade inoperatice and DTC U151B
Source components: VISIBILITY:SUN/MOON ROOF ASSEMBLY.
Source record 10116877 at NHTSANHTSA communication ID: 10116874
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on exterior lamp condinsation and replacement guidelines
Source components: EXTERIOR LIGHTING:HEADLIGHTS.
Source record 10116874 at NHTSANHTSA communication ID: 10096184
NHTSA source summary · Original PDF not reviewed by Recallfolio
THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO THE TECHNICIAN THAT AFTER REPLACING THE INSTRUMENT PANEL CLUSTER THE EXCHANGE CENTER IS UNABLE TO PROGRAM THE ACTUAL MILEAGE ON THE ODOMETER OR THE ACTUAL MILEAGE IS UNKNOWN. DEALER WILL NEED TO FOLLOW DEALER TO THE GENERAL MOTORS SERVICE POLICIES AND PROCEDURES MANUAL SECTION 5.2.4 ODOMETER SERVICING.
Source components: ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL · EQUIPMENT.
Source record 10096184 at NHTSANHTSA communication ID: 10116872
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides a procedure on how to remove door trim panles and replace chime speaker pigtail connectors for vehicles with the condition of intermittent loss of chime from speaker
Source components: EQUIPMENT ADAPTIVE/MOBILITY.
Source record 10116872 at NHTSANHTSA communication ID: 10116871
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on how to properly repair rust on the hem flange on doors for vehicles that have the condition of rust showing at hem flange
Source components: EQUIPMENT ADAPTIVE/MOBILITY.
Source record 10116871 at NHTSANHTSA communication ID: 10116862
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary informational bulletin provides Diagnostic Tips for Stop/Start and AutoStop Operation on vehicles that have a conditon of AutoStop mode not engaging and vehicle automaticlly restarts during a autostop event
Source components: ELECTRICAL SYSTEM:STARTER ASSEMBLY · ENGINE AND ENGINE COOLING.
Source record 10116862 at NHTSANHTSA communication ID: 10112303
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides a procedure to retorque a ground to correct a condition of vehicle will not start with theft deterrent message displayed and DTC P0513 set
Source components: POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER.
Source record 10112303 at NHTSANHTSA communication ID: 10112302
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides Information on Passenger Presence Sensing System (PPS or PSS) Concerns with Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices
Source components: AIR BAGS:SENSOR:OCCUPANT CLASSIFICATION · SEATS · SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER.
Source record 10112302 at NHTSANHTSA communication ID: 10112299
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules (VCIM) (GMNA Only)
Source components: EQUIPMENT:ELECTRICAL · EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM).
Source record 10112299 at NHTSANHTSA communication ID: 10112288
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational buleltin provides information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares and information on transmission fast learns
Source components: POWER TRAIN.
Source record 10112288 at NHTSANHTSA communication ID: 10252174
NHTSA source summary · Original PDF not reviewed by Recallfolio
Radio Inoperative with No Communication and DTC U0184
Source components: EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
Source record 10252174 at NHTSANHTSA communication ID: 10112280
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides a procedure to replace the 3-5-reverse clutch plates for conditions of no reverse, no third, and DTC P0716, P0717
Source components: POWER TRAIN:CLUTCH ASSEMBLY.
Source record 10112280 at NHTSANHTSA communication ID: 10112277
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides a procedure to update your apple product to the latest software version to correct a condition of infotainment system will not return to media after bluetooth call ends
Source components: ELECTRICAL SYSTEM:SOFTWARE · EQUIPMENT:ELECTRICAL.
Source record 10112277 at NHTSANHTSA communication ID: 10075743
NHTSA source summary · Original PDF not reviewed by Recallfolio
SUMMARY TO BE PROVIDED ON A FUTURE DATE.
Source components: ENGINE.
Source record 10075743 at NHTSANHTSA communication ID: 10112272
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on close coupled converters and there affect on newly installed engines or engines during there break in period.
Source components: ENGINE.
Source record 10112272 at NHTSANHTSA communication ID: 10246963
NHTSA source summary · Original PDF not reviewed by Recallfolio
Changing Turn-By-Turn Voice Response To Metric Or English Units
Source components: EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM).
Source record 10246963 at NHTSANHTSA communication ID: 10112269
NHTSA source summary · Original PDF not reviewed by Recallfolio
This technical bulletin provides a procedure to replace the power steering fluid cooling pipe and engine oil cooling pipe for concerns of power steering lines or engine oil lines leaking due to rubbing
Source components: ENGINE · STEERING · STEERING:HYDRAULIC POWER ASSIST:HOSE, PIPING, AND CONNECTIONS · STEERING:HYDRAULIC POWER ASSIST:POWER STEERING FLUID.
Source record 10112269 at NHTSANHTSA communication ID: 10112264
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information on removing paint stains on the under side of protective shipping film
Source components: STRUCTURE:BODY.
Source record 10112264 at NHTSANHTSA communication ID: 10246997
NHTSA source summary · Original PDF not reviewed by Recallfolio
Ambient Temperature Sensor Reads High on HVAC Data Lists.
Source components: VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM.
Source record 10246997 at NHTSANHTSA communication ID: 10079701
NHTSA source summary · Original PDF not reviewed by Recallfolio
14588C - SPECIAL COVERAGE (REVISED LABOR TIME). POLICE PATROL VEHICLES, IDLING THE ENGINE FOR EXTENDED PERIODS OF TIME CAN PREMATURELY WEAR THE ENGINE-COOLING-FAN MOTOR. IN THIS CONDITION, THE MOTOR MAY FAIL TO OPERATE OR OPERATE NOISILY. THIS CONDITION CAN ALSO DAMAGE MOTOR-CONTROL RELAYS IN THE VEHICLES UNDERHOOD BUSSED ELECTRICAL CENTER (UBEC). IF CONDITION OCCURS WITHIN STATED SPECIAL COVERAGE TERMS, DEALERS ARE TO DIAGNOSE AND REPLACE FAN MOTORS PER PI1384 REGARDING THE SEMI-ANNUAL PREVENTATIVE MAINTENANCE CHECK FOR POLICE VEHICLE COOLING FANS
Source components: ENGINE.
Source record 10079701 at NHTSANHTSA communication ID: 10112261
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin provides information regarding Part Restriction and Ordering Process Information for OnStar Vehicle Communication Interface Modules
Source components: EQUIPMENT:ELECTRICAL · EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM).
Source record 10112261 at NHTSANHTSA communication ID: 10250074
NHTSA source summary · Original PDF not reviewed by Recallfolio
Information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares
Source components: POWER TRAIN.
Source record 10250074 at NHTSANHTSA communication ID: 10250068
NHTSA source summary · Original PDF not reviewed by Recallfolio
No Reverse, No Third, DTC P0716, P0717
Source components: POWER TRAIN.
Source record 10250068 at NHTSANHTSA communication ID: 10250067
NHTSA source summary · Original PDF not reviewed by Recallfolio
Infotainment System Will Not Return to Media After Bluetooth Call Ends
Source components: EQUIPMENT:ELECTRICAL:INFOTAINMENT.
Source record 10250067 at NHTSANHTSA communication ID: 10250051
NHTSA source summary · Original PDF not reviewed by Recallfolio
Power Steering Cooling Lines and/or Engine Oil Cooler Line
Source components: STEERING.
Source record 10250051 at NHTSANHTSA communication ID: 10247221
NHTSA source summary · Original PDF not reviewed by Recallfolio
On some 2011-2015 model year Chevrolet Caprice and 2012-2016 model year Chevrolet Impala police patrol vehicles, idling the engine for extended periods of time can prematurely wear the engine-cooling-fan motor. In this condition, the motor may fail to operate or operate noisily. This condition can also damage motor-control relays in the underhood bussed electrical center (UBEC).
Source components: ELECTRICAL SYSTEM · ENGINE AND ENGINE COOLING.
Source record 10247221 at NHTSANHTSA communication ID: 10246561
NHTSA source summary · Original PDF not reviewed by Recallfolio
Information on Transmission Adaptive Functions and Correcting Low Mileage Harsh Shifts, Slips, or Flares
Source components: POWER TRAIN.
Source record 10246561 at NHTSANHTSA communication ID: 10246555
NHTSA source summary · Original PDF not reviewed by Recallfolio
No Reverse, No Third, DTC P0716, P0717
Source components: POWER TRAIN.
Source record 10246555 at NHTSANHTSA communication ID: 10246538
NHTSA source summary · Original PDF not reviewed by Recallfolio
Power Steering Cooling Lines and/or Engine Oil Cooler Line
Source components: ENGINE AND ENGINE COOLING · STEERING.
Source record 10246538 at NHTSANHTSA communication ID: 10115003
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician on the steps to diagnose and repair vehicles that may have oil mixed in with the engine coolant. Technician will need to inspect the oil cooler if equipped for possible leaking into the cooling system through the radiator. If no issue found replace the engine as well as all rubber coolant hoses.
Source components: ENGINE AND ENGINE COOLING.
Source record 10115003 at NHTSANHTSA communication ID: 10114977
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about what XM offerings are available for vehicles. A dealer or customer can access the website listed below for vehicle specific XM offerings and availability.
Source components: EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY · EQUIPMENT:ELECTRICAL.
Source record 10114977 at NHTSANHTSA communication ID: 10114957
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that have a random infotainment system resets while driving, screen temporarily goes blank and then returns after approximately 5 seconds, radio volume control inoperative, Heater-Vent-Air Conditioning controls function but will not show changes on the display, seek buttons on the front controls will not function, when using CarPlay the map is intermittently bright at night, front pedestrian icon "Check Box" disappears after changing selection, over-temp Pop-up displayed randomly, displays a quick blue screen when shifting to reverse, infotainment system resets when a device with a large amount of songs is connected, XM not showing Station List, and or Radio shows XM Station ID 0 intermittently. Technician should USB program the Human Machine Interface. After USB programming has been completed reprogram the Human Machine Interface module this time using the Service Programming System with the latest calibrations available on TIS2WEB.
Source components: ELECTRICAL SYSTEM.
Source record 10114957 at NHTSANHTSA communication ID: 10114954
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that have a Service Engine Soon Malfunction Indicator Lamp. Technician may find Diagnostic Trouble Code P0442. Technician will need to review Techlink article from May 2013 titled "Using the Evaporative Emissions System Tester" Technician will need to follow these steps to help diagnose the issue. First after the P0442 has been verified do not disturb any of the fuel system components. The technician now can use the scan tool to close the Evaporative Emissions System. If possible change the tank pressure sensor units from inch_H2O to milimeter_Hg for better resolution. Now the vehicle can be stared to monitor the tank pressure sensor output value for approximately two minutes. If the tank pressure sensor value does change, pressurize the fuel tank side of the purge solenoid with the GE 41413-A / J 41413-A and the necessary adaptors. Now add smoke and allow pressure to stabilize for 2 minutes. If smoke is allowed to pass through the purge solenoid, replace the purge solenoid. If the tank pressure sensor value does not change, then install CH-48096 adaptor between the purge line from the canister and the purge solenoid. With the Evaporative Emissions System closed, pressurize the system through the CH-48096 adaptor and allow the system to completely stabilize, by observing the Press / Vac Gauge for a minimum of 5 minutes. Now add smoke to the system with GE 41413-A / J 41413-A after system stabilization. Now inspect the purge solenoid, engine side, fuel cap, canister vent solenoid filter and any line quick connects. When the leak is unable to be located, test under a vacuum condition. his type of leak may be detected by using the scan tool Purge/Seal function to create a vacuum in the Evaporative Emissions System and then observe the FTP sensor parameter for vacuum decay.
Source components: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL · FUEL SYSTEM, GASOLINE · FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY.
Source record 10114954 at NHTSA