Original record summaries, dates and identifiers for this model-year. Records 1,601–1,700 of 1,802, ordered newest first. Dated records on this page: Aug 23, 2013–Jan 23, 2014.
Read the applicability before drawing a conclusion.
This 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.
Jan 23, 2014Service Bulletin/Repair Instructions
PIP4670D
NHTSA communication ID: 10112022
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about a no start or another concern after swapping an Engine Control Module or other modules from one vehicle to another. The Global Architecture electrical system associated with these vehicles does not allow controller swaps between vehicles.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that may have black smoke on a cold start. A dual-pulse injection strategy is utilized during engine cold start to reduce the time required to bring the catalytic converter up to operating temperature. This split injection strategy lasts for about 60 seconds on cold start. This process may cause the customer to see increased black smoke during cold start and should be considered normal.
Source components: ENGINE AND ENGINE COOLING · ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CATALYTIC CONVERTOR.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that may have an issue when using Bluetooth voice recognition with an iPhone. Technician should work with the customer to insure the phone contacts to not have any Emojis loaded to any contact.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that have Service Engine Soon Malfunction Indicator Lamp on and a misfire. Technician may find Diagnostic Trouble Codes P0201, P0202, P0203, P0204, P0205, P0206, P0261, P0262, P0264, P0265, P0267, P0268, P0270, P0271, P0273, P0274, P0276, P0277, P2146, P2149, P2152, P2155, P216A, and or P216D. Technician will need to inspect the fuel injector wiring harness for rub through or internal wire opens. If this concern is found repair or replace the injector harness as needed.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This informational bulletin was provides information for the technician of cold start ticking noises in the engine compartment and may be caused by the fuel pump and/or the fuel injectors and no repairs are needed for a normal condition.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician of a complaint of a sag or hesitation when accelerating. The concern is present when coasting at low speeds of less than 15 miles per hour and then aggressively applying the throttle, or after making a hard stop followed by an aggressive throttle. This is considered normal operation of the vehicle the throttle is delayed and opened slowly up to .7 seconds to help minimize driveline lash and clunking or will have approximately .5 seconds of zero torque to allow the transmission to shift to first gear.
Source components: POWER TRAIN:AUTOMATIC TRANSMISSION · POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician that a noise or a vibration in the vehicle that seems to be abnormal may not have been there when the vehicle was purchased. Technician should look for Non - General Motors aftermarket accessories installed on the vehicle that can cause these issues.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician with a supplement to the Service Information timing procedure for the high feature V-6 engine. Technician will also review the training video on the Common Training Website.
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 on. Technician will find Diagnostic Trouble Code P2097 or P2099. Technician will need to perform an injector balance or Active Fuel Injector Tester prior to going further. Technician will also need to check for a small leak in the exhaust if published Service Information diagnostics does not lead to a resolution.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Informational bulletin explains the warranty and policy exchange program for electronic devices and products, what can be approved by TAC and where the electronic parts can be returned to.
Source components: ELECTRICAL SYSTEM · EQUIPMENT · EQUIPMENT:ELECTRICAL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that may have the Hazard Flashers turn on after vehicle shut down or that the Glove Box may be open when they return to their vehicle. Technician should replace the Hazard Switch and/or Glove Box Switch (depending on customers concern) with a new designed switch.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin provide policy information of the JOB CARD, for a repair on vehicles and what is acceptable - customer authorization; Service manager approvals and transaction authorization; Details of concern, cause and correction; Labor Time; Technician ID and acoutablity of labor time; Proper documentation and retension of warranty parts; Accurate sublet charges and receipts; Add on concerns after the Job Card has been written.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that may have black smoke on a cold start. A dual-pulse injection strategy is utilized during engine cold start to reduce the time required to bring the catalytic converter up to operating temperature. This split injection strategy lasts for about 60 seconds on cold start. This process may cause the customer to see increased black smoke during cold start and should be considered normal.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin provides information on Premium care maintenance eligibility for vehicle services and maintenance in the U.S. and Canada.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin provide policy information of the JOB CARD, for a repair on vehicles and what is acceptable - customer authorization; Service manager approvals and transaction authorization; Details of concern, cause and correction; Labor Time; Technician ID and acoutablity of labor time; Proper documentation and retension of warranty parts; Accurate sublet charges and receipts; Add on concerns after the Job Card has been written.
NHTSA source summary · Original PDF not reviewed by Recallfolio
No XM Audio, Rear View Camera Issues, Favorite Stations Stored Twice and/or Disappear Condition/Concern No audio on startup in XM. iPhone does not detect if user disconnects iPhone during certification process. When receiving an incoming call through OnStar Hands Free Calling system, the vehicle does not ring. It will show on the screen. FM Timeshift not functioning properly. HD Switching Toggle Setting does not function. Favorites stored Twice or disappear. Noise is played during the TimeShift recoding. A/C Mode icon is displayed when vehicle is not equipped with A/C. The folder track is not played when the folder is pressed for a long time. Missing Forward Collision Warning Chime on vehicles base audio system, Forward Collision Alert and/or Adaptive Cruise. Long press of the knob when highlighting a browse folder, sometime changes the media source from SD card to USB and when user releases the push knob, it brings the Media Menu back instead of showing the now playing screen for USB and SD card. The USB only works with Apple products (iPhone). Rear View Camera Issues: When shifting from Drive to Reverse is less than 3 seconds, the display will not transition to the rear view camera screen. When shifting from Drive to Reverse is more than 3 seconds, the display may be blank and will not show the rear view camera message Check Surrounding for Safety.
NHTSA source summary · Original PDF not reviewed by Recallfolio
No XM Audio, Rear View Camera Issues, Favorite Stations Stored Twice and/or Disappear Condition/Concern No audio on startup in XM. iPhone does not detect if user disconnects iPhone during certification process. When receiving an incoming call through OnStar Hands Free Calling system, the vehicle does not ring. It will show on the screen. FM Timeshift not functioning properly. HD Switching Toggle Setting does not function. Favorites stored Twice or disappear. Noise is played during the TimeShift recoding. A/C Mode icon is displayed when vehicle is not equipped with A/C. The folder track is not played when the folder is pressed for a long time. Missing Forward Collision Warning Chime on vehicles base audio system, Forward Collision Alert and/or Adaptive Cruise. Long press of the knob when highlighting a browse folder, sometime changes the media source from SD card to USB and when user releases the push knob, it brings the Media Menu back instead of showing the now playing screen for USB and SD card. The USB only works with Apple products (iPhone). Rear view camera issues.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Required Programming for Cadillac Professional Vehicle Applications To configure the vehicle for proper operation of the electronic suspension control system (ESC), the following procedure must be performed.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the component is constructed of an aluminum alloy.
Source components: EQUIPMENT ADAPTIVE/MOBILITY · STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS.
NHTSA source summary · Original PDF not reviewed by Recallfolio
Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more of their vehicle's underbody components are showing some form of corrosion. This corrosion may be red in appearance (rust) if the component is steel, forged iron or cast iron. This corrosion may also be grey or white in color if the component is constructed of an aluminum alloy.
Source components: EQUIPMENT ADAPTIVE/MOBILITY · STRUCTURE:FRAME AND MEMBERS:UNDERBODY SHIELDS.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that may have a clock that is slow to update while driving when the clock auto set feature enabled. Dealer should communicate to the customer this condition is a normal operating characteristic of their vehicle.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary bulletin provides information on Blank Screen After Startup and Reverse, Rearview Camera Message On, Touch Screen Inoperable, Bluetooth® and Navigation Concerns
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that may have a noise, vibration or shudder on acceleration from a stop. Technician should replace the right hand axle shaft retaining ring. Technician will need to inspect the splines on the half shaft for damage. Technician should also inspect the splined end of the Power Transfer Unit for excessive wear.
Source components: POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT · POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT:SEAL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary bulletin provides a procedure to add a lubricate to the edges of the brake pad to correct the customers concern of brake noise on initial brake application.
Source components: BACK OVER PREVENTION · SERVICE BRAKES.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that the Driver Information Center settings do not stay at the setting they were left it after an ignition cycle. Technician will need to reprogram the Instrument Panel Cluster with the latest calibrations using Service Programming System and Tis2Web.
Source components: ELECTRICAL SYSTEM · ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
GM: SOME VEHICLES MAY EXPERIENCE A VIBRATION OR SHUDDER UPON ACCELERATION FROM A STOP. THE RIGHT FRONT AXLE SHAFT MAY NOT B FULLY SEATED INTO THE PTU. *JS
NHTSA source summary · Original PDF not reviewed by Recallfolio
Service bullentin information for repairing engine front cover oil leak, sealing surfaces preparation, applying room temperature vulcanizing (RTV) sealant.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that may have the Hazard Flashers turn on after vehicle shut down or that the Glove Box may be open when they return to their vehicle. Dealer should communicate to the customer that we apologize for this inconvenience and that General Motors is working on a solution for this concern.
Source components: ELECTRICAL SYSTEM · EXTERIOR LIGHTING:HAZARD FLASHING WARNING LIGHTS.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that have a Malfunction Indicator Lamp on or engine misfire, rough idle, extended crank, or crank no start in some cases. Technician will need to perform published Service Information diagnostics. If technician finds carbon an upper engine and valve cleaning should be performed.
Source components: ENGINE AND ENGINE COOLING · EQUIPMENT:MECHANICAL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This preliminary Informational bulletin provides information on Battery Test Cold Cranking Amperage (CCA) for Original Equipment Batteries and Testing Tips.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician that the 3.6L LF3 Twin Turbo Charged Engine will be placed on engine exchange program. Dealer will need to contact General Motors Product Quality Center for further assistance.
Source components: ENGINE AND ENGINE COOLING · ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about engine block of possible cylinder bore damage, scoring or out of round as the possible cause of engine oil consumption, misfire, cylinder leakage or blow by. Technician will need to inspect the engine for Cylinder damage or scoring, An out of round cylinder bore, Dirt intrusion, and Catalytic Converter failure.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about customers that may complain of various concerns when using Bluetooth components. Technician should use the Preliminary Information to gather information from the customer on their Bluetooth device and the concern they are having before calling General Motors Technical Assistance Center.
NHTSA source summary · Original PDF not reviewed by Recallfolio
GENERAL MOTORS: THE WINDOWS, FRONT AND REAR, WOULD BIND, POOR FIT, MISALIGNMENT, MAKES RATTLE OR SQUEAKING NOISES, MOVES SLOWLY AND IS INOPERATIVE. MODEL 2008-2014 VEHICLES AND TRUCKS. *PE
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that have brake lights remain on with the vehicle off and parked and/or the vehicle battery goes dead. Technician will need to inspect for aftermarket parts.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician that the turbocharger part numbers 12659010 and 12659010 have been placed parts restriction by General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
Source components: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER · EQUIPMENT:MECHANICAL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that may have a the AM or FM audio volume changes, mutes, echoes, cuts in and out, repeats broadcast content, or skips intermittently. Advise this is normal operation when listening to a weak AM or FM HD station. Technician can shut the HD option off to fix the concern.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that the Pandora audio will revert back to the phone after a Bluetooth call when an iPhone is connected to the vehicle via USB. Technician should cycle the USB connection and the concern will be resolved. Dealer should communicate to the customer that we apologize for this inconvenience and that General Motors is currently evaluating this concern.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician with information regarding high misfire rates always on #1 cylinder. A customer may complain of misfires or roughness on cold start up with a P0300 diagnostic trouble code. Technician is to add coolant dye to the system and run the engine through warm up to circulate the dye. Pressurize the cooling system after a cold soak and inspect the cylinder with a bore scope for coolant dye. Dye is used to identify coolant over residual fuel being that might be left in the cylinder. The technician is not to replace the cylinder head as it will not correct this concern. In some cases it is necessary to remove the head for inspection. Do not replace the engine for small surface pock marks or a pitting appearance this is normal and do not connect to coolant passages. Usually if porosity is present there will be a break in the carbon ring. Only replace the engine if true porosity is found. Technician is to call Product Quality Center with the latest version of bulletin 02-07-30-029 if porosity is found and engine replacement is required.
Source components: ENGINE AND ENGINE COOLING:COOLING SYSTEM.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehicle has powered down, remove power to the OnStar module for five minutes. After the power has been removed for five minutes, if the OnStar system is working release the vehicle. If the OnStar system is still inoperative continue with published Service Information diagnostics. Technician may need to contact General Motors Technical Assistance Center depending on the STID, Station ID, or OnStar Customer Identifier.
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-37 history in the Vehicle Communication Interface Module or telematics communication interface control module. Engineering has determined that this code will only display in history on the scan tool and will not cause issues with OnStar system operation.
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 need to call General Motors Technical Assistance Center for further assistance. If the Diagnostic Trouble Code B101D has a sym 37 set please refer to the latest version of PIC5492.
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 and may also have an oil or coolant leak. Technician may find coolant or oil in a spark plug tube. If the Spark Plug Tube is leaking and it is determined that the oil or coolant is not coming from a leak above the spark plug then replace the cylinder Head, spark plug and coil.
Source components: ENGINE AND ENGINE COOLING:COOLING SYSTEM.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about the percentage of UV protection or tint offered by the windshield or side glass. Technician should be advised Windshield reduces UV rays down to 4% or less. Front side door glass reduces UV rays down to 35% or less. Windshields are SOLAR glass with a light transmittance of >/=70%. Front door glass are Solar glass with a light transmission of >/=70%. Rear door glass, quarter windows and back windows can use either Solar glass (>/=70%) or Privacy glass, which has a light transmittance of 20%.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician that the Engine Control Module part number 12656993 will be placed on restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
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 have check engine light and a misfire. Technician will find a P0300 set. If the misfiring cylinder is creating NO or very low power, technician will need to follow these diagnostics steps. 1) Swap the ignition coil and spark plug with another cylinder. 2) Inspect the plug when out for wet or dry condition. 3) Perform an injector test with a scan tool. 4) If the plug is wet then check for a leaking or stuck open injector. 5) If the plug is dry then enrich the intake air with propane. If the severity of the misfire is less with enrichment, suspect a weak or inoperative injector driver in the Engine Control Module and replace as needed. 6) Perform a cylinder leakage test to determine if there is a valve sealing concern. If there is a valve sealing concern see the latest version of PIP5029 for recommendations.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that may have a noise, vibration or shudder on acceleration from a stop. Technician should replace the right hand axle shaft retaining ring. Technician will need to inspect the splines on the half shaft for damage. Technician should also inspect the splined end of the Power Transfer Unit for excessive wear.
Source components: POWER TRAIN · POWER TRAIN:AXLE ASSEMBLY:AXLE SHAFT · SUSPENSION.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician that the Engine Control Module part number 12656993 will be placed on restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that have an OnStar system that will not power up. Technician should turn off the ignition and cancel retained accessory power. After the vehicle has powered down, remove power to the OnStar module for five minutes. After the power has been removed for five minutes, if the OnStar system is working release the vehicle. If the OnStar system is still inoperative continue with published Service Information diagnostics. Technician may need to contact General Motors Technical Assistance Center depending on the STID, Station ID, or OnStar Customer Identifier.
Source components: ELECTRICAL SYSTEM · EQUIPMENT ADAPTIVE/MOBILITY.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides the technician with information on the proper washing of the bright aluminum moldings to avoid the moldings from getting damaged. It is recommended that a non-alkaline solution be used for preparation & washing of the bright aluminum moldings.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about vehicles that the voice recognition is inoperative. Technician will need to toggle through all languages then back to the desired language.
Source components: ELECTRICAL SYSTEM · EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician that the Human Machine Interface, Radio or Tuner, radio controls, Integrated Center Stack, display, and Media Disc Players are placed on restriction through the General Motors Technical Assistance Center. Dealer will need to contact General Motors Technical Assistance Center for further assistance.
Source components: ELECTRICAL SYSTEM · EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC..
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication provides information to the technician about installing General Motors Accessory pats. Technician can check Service Information for some accessories. Technician can also contact Partech for assistance.
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).
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin provide policy information on GM of Canada New Vehicle Limited Warranty Tire Program and Global Warranty Management (GWM) Submission Information.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This warranty administration bulletin provide policy information on a revised customer concern not duplicated/verified labor operation numbers and how to submit CCND.
Source components: ELECTRICAL SYSTEM · ENGINE AND ENGINE COOLING:EXHAUST SYSTEM · EQUIPMENT ADAPTIVE/MOBILITY · EQUIPMENT:APPLIANCE:AIR CONDITIONER · EQUIPMENT:ELECTRICAL · POWER TRAIN:AXLE ASSEMBLY · SERVICE BRAKES.
NHTSA source summary · Original PDF not reviewed by Recallfolio
13275 - Service Update. Inspect the routing of the turbo vacuum hoses and, if necessary, reroute the hoses and replace any that are damaged. The hose on some of these vehicles may be routed incorrectly. This could cause the turbo wastegate to remain open, reduce engine power at high throttle openings, and the illumination of a MIL light at the first instance of operation demanding turbo boost.
Source components: ENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS.
NHTSA source summary · Original PDF not reviewed by Recallfolio
This Preliminary Information communication advises the technician that the Engine Control Module part number 12656993 will be placed on restriction through the General Motors Product Quality Center. Dealer will need to contact General Motors Product Quality Center for further assistance.