The vehicle dossier US · 2004

2004 Isuzu
ASCENDERProblems & recalls

64 distinct owner reports in the NHTSA snapshot. Electrical system appears in 34 of them. Explore what was reported—and which official actions are on file.

Snapshot Sep 28, 2026Live NHTSA complaint API How this dossier is compiled

01 / Owner-reported evidence

What owners reported.

Categories attached to 64 distinct reports. A report can mention more than one component, so category totals can overlap.

Electrical system34 reports
Fuel system17 reports
Other components14 reports
Engine6 reports
Visibility4 reports
Brakes3 reports
Transmission & drivetrain2 reports
Body & structure2 reports
Suspension1 reports
Air bags1 reports
Steering1 reports
See original component labels
ELECTRICAL SYSTEM23
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL11
FUEL SYSTEM, GASOLINE8
FUEL/PROPULSION SYSTEM7
EXTERIOR LIGHTING5
ENGINE4
SEAT BELTS:FRONT2
POWER TRAIN2
TIRES1
ENGINE AND ENGINE COOLING1
VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM:REAR WINDOW1
ELECTRICAL SYSTEM:IGNITION1
SUSPENSION:FRONT1
SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP1
SEAT BELTS1
EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.1
EXTERIOR LIGHTING:TAIL LIGHTS1
ELECTRICAL SYSTEM:12V/24V/48V BATTERY1
ENGINE AND ENGINE COOLING:ENGINE1
FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY1
TIRES:TREAD/BELT1
VISIBILITY:GLASS, SIDE/REAR1
FUEL SYSTEM, OTHER1
VEHICLE SPEED CONTROL1
AIR BAGS1
VISIBILITY:POWER WINDOW DEVICES AND CONTROLS1
SERVICE BRAKES, HYDRAULIC1
VISIBILITY:WINDSHIELD1
STRUCTURE:BODY:DOOR1
LATCHES/LOCKS/LINKAGES:DOORS:LATCH1
UNKNOWN OR OTHER1
STRUCTURE:BODY1
STEERING1
SERVICE BRAKES1

These are reports made to NHTSA, not verified diagnoses. More reports can reflect more vehicles, more time on the road, or greater reporting activity.

The reporting timeline

When reports arrived.

Reports by year filed, not by the year a problem occurred. Showing the latest 15 years with reports.

Year filed (last two digits)Latest report: Jan 6, 2018
Mileage, where supplied

80,000 miles is the median among 51 reports with usable mileage. The middle half spans 32,000–122,344 miles.

This describes the submitted reports. It does not predict when a vehicle will fail.

02 / Official safety campaigns

1 recall campaign on file.

A campaign can cover only certain production dates or configurations. The count does not tell you whether an individual car has an open recall.

May 5, 2005 Safety recallEXTERIOR LIGHTING:TURN SIGNALCampaign 05V198000

Reported concern

ON CERTAIN TRUCKS AND SPORT UTILITY VEHICLES, THE DRIVER WISHING TO SIGNAL A TURN BY MOVING THE DIRECTIONAL SIGNAL LEVER, (UP OR DOWN) MAY CAUSE THE FRONT MARKER/TURN LIGHTS AND REAR TURN LIGHTS TO FLASH IN A MANNER SIMILAR TO HAZARD WARNING, RATHER THAN FLASHING ON THE DESIRED SIDE ONLY.

Manufacturer’s stated response

DEALERS WILL REPLACE THE SUSPECT FLASHER MODULES WITH A NEW FLASHER MODULE DESIGNED WITH SEALED RELAYS AND MORE DURABLE CONTACT MATERIAL INSIDE OF THE RELAYS FREE OF CHARGE. THE RECALL BEGAN ON AUGUST 4, 2005. ISUZU BEGAN MAILING OWNER LETTERS ON AUGUST 4, 2005. OWNERS MAY CONTACT CHEVROLET AT 1-800-630-2438, GMC AT 1-866-996-9463, ISUZU AT 1-800-255-6727, BUICK AT 1-866-608-8080, AND OLDSMOBILE AT 1-800-630-6537.

Manufacturer campaign: 05044

Read campaign 05V198000 at NHTSA
Check this car’s VIN at NHTSA

03 / The manufacturer’s record

Instructions. Updates. Responses.

175 distinct communications list this model-year. Showing the latest 12. A matching model-year does not establish that every engine, trim or reported symptom is covered.

May 8, 2023 Service Bulletin/Repair InstructionsIB13-R-001GThis bulletin outlines the procedures for using the Alpine Exchange Program (the "Exchange Program"). The Exchange Program must be used when any Alpine radio or other component covered by this bulletin is repaired under warrant…NHTSA ID 10237146

This bulletin outlines the procedures for using the Alpine Exchange Program (the "Exchange Program"). The Exchange Program must be used when any Alpine radio or other component covered by this bulletin is repaired under warranty and may also be used for radio and component repairs not covered under warranty. Contact Alpine directly for pricing and payment methods applicable to radio and component repairs not covered under warranty.

Components: UNKNOWN OR OTHER. Confirm detailed applicability in the original document.

Source record 10237146 at NHTSA
Aug 30, 2022 Service Bulletin/Repair InstructionsWB13-X-001BIsuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural recommendations to improve dealer efficiency when submitting Parts Warranty claims. We strongly recommend dealers follow these procedures in o…NHTSA ID 10218932

Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural recommendations to improve dealer efficiency when submitting Parts Warranty claims. We strongly recommend dealers follow these procedures in order to avoid delays in Parts Warranty claim payments and/or claim chargeback. This bulletin was revised to add a Parts Warranty Form

Components: EQUIPMENT. Confirm detailed applicability in the original document.

Source record 10218932 at NHTSA
Aug 2, 2022 Service Bulletin/Repair InstructionsWB13-X-001AIsuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural recommendations to improve dealer efficiency when submitting Parts Warranty claims. We strongly recommend dealers follow these procedures in o…NHTSA ID 10218927

Isuzu Commercial Truck of America, Inc. (ICTA) is providing the following procedural recommendations to improve dealer efficiency when submitting Parts Warranty claims. We strongly recommend dealers follow these procedures in order to avoid delays in Parts Warranty claim payments and/or claim chargeback.

Components: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. Confirm detailed applicability in the original document.

Source record 10218927 at NHTSA
Jul 20, 2022 Service Bulletin/Repair InstructionsIB09-X-004CThe Isuzu Commercial Truck of America (ICTA) Service Technical Assistance Center (TAC) provides diagnostic support to Isuzu dealer technicians repairing Isuzu vehicles in and out of vehicle warranty. A TAC case number will be i…NHTSA ID 10217004

The Isuzu Commercial Truck of America (ICTA) Service Technical Assistance Center (TAC) provides diagnostic support to Isuzu dealer technicians repairing Isuzu vehicles in and out of vehicle warranty. A TAC case number will be issued solely for information tracking purposes and future contact reference.

Components: ENGINE AND ENGINE COOLING · EQUIPMENT · EQUIPMENT ADAPTIVE/MOBILITY. Confirm detailed applicability in the original document.

Source record 10217004 at NHTSA
Jul 20, 2022 Service Bulletin/Repair InstructionsIB09-X-002BThe following is a list of the Isuzu-recommended Threebond product part numbers identified in the various Isuzu Workshop Manuals and bulletins. If a Threebond product is unavailable, we recommend that you utilize the chart belo…NHTSA ID 10217001

The following is a list of the Isuzu-recommended Threebond product part numbers identified in the various Isuzu Workshop Manuals and bulletins. If a Threebond product is unavailable, we recommend that you utilize the chart below to find equivalent of similar products (when available) from Loctite and Permatex.

Components: EQUIPMENT. Confirm detailed applicability in the original document.

Source record 10217001 at NHTSA
Jan 11, 2022 Service Bulletin/Repair Instructions22NA009This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.NHTSA ID 10212625

This service bulletin provides service information on new torque specification and installation procedure for ACDelco Spin-On Oil Filters.

Components: ENGINE AND ENGINE COOLING:ENGINE:OIL/LUBRICATION:FILTER/SCREEN. Confirm detailed applicability in the original document.

Source record 10212625 at NHTSA
May 8, 2020 Service Bulletin/Repair Instructions16NA383This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Ti…NHTSA ID 10176607

This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up.

Components: ENGINE · EQUIPMENT ADAPTIVE/MOBILITY · FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM. Confirm detailed applicability in the original document.

Source record 10176607 at NHTSA
Feb 19, 2019 Service Bulletin/Repair InstructionsPIP5540DThis Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the rela…NHTSA ID 10154306

This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.

Components: ENGINE AND ENGINE COOLING. Confirm detailed applicability in the original document.

Source record 10154306 at NHTSA
Feb 18, 2019 Service Bulletin/Repair InstructionsPIP5628This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050DNHTSA ID 10154299

This Preliminary information communicates information that will need to be provided to TAC to aid in diagnosing if a vehicle comes in with misfire and DTC Codes P0300 - P0308 and/or P050D

Components: ENGINE AND ENGINE COOLING. Confirm detailed applicability in the original document.

Source record 10154299 at NHTSA
Dec 6, 2018 Service Bulletin/Repair InstructionsPIP5540BThis Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the rela…NHTSA ID 10154566

This Preliminary information communicates to the technician the need to inspect the induction system for potential icing issues in very cold ambient temperatures. To allow the ice to melt so that it can be drained from the related components. That any of the listed DTC's may set with or without poor engine performance.

Components: ENGINE AND ENGINE COOLING. Confirm detailed applicability in the original document.

Source record 10154566 at NHTSA
Dec 3, 2018 Service Bulletin/Repair InstructionsPIP4925BThis preliminary information document communicates a tip on the way to diagnose possible induction or exhaust air leaks using the evaporative emission cart smoke machine and ultrasonic leak detector tools.NHTSA ID 10154552

This preliminary information document communicates a tip on the way to diagnose possible induction or exhaust air leaks using the evaporative emission cart smoke machine and ultrasonic leak detector tools.

Components: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL. Confirm detailed applicability in the original document.

Source record 10154552 at NHTSA
Nov 21, 2018 Service Bulletin/Repair InstructionsPIC6107AThis Preliminary Information communication provides information to the technician about being unable to receive OnStar ?Over The Air? updates. Technician will need to press the OnStar button and verify they have an active accou…NHTSA ID 10151868

This Preliminary Information communication provides information to the technician about being unable to receive OnStar ?Over The Air? updates. Technician will need to press the OnStar button and verify they have an active account and that the call connects with data and location.

Components: EQUIPMENT · EQUIPMENT:ELECTRICAL · EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). Confirm detailed applicability in the original document.

Source record 10151868 at NHTSA
Browse all manufacturer records by page

Records below contain the NHTSA bulk summary unless a document-reviewed explainer is linked. A service bulletin is not a safety recall or a promise of a free repair. Records may be revised or superseded; verify the current document with the manufacturer.

04 / Agency investigations

Official inquiries.

An investigation is an inquiry into a potential concern. Its presence does not establish a defect, and a closed case does not certify a car’s condition.

Opened Apr 24, 2017 ClosedLoss of HeadlightsRQ17002

The subject vehicles are model year (MY) 2002-2009 Chevrolet Trailblazer, GMC Envoy, 2004-2007 Buick Rainier, 2003-2008 Isuzu Ascender, 2005-2009 Saab 9-7X, 2002-2004 Oldsmobile Bravada, 2003-2006 Chevrolet SSR, 2005-2009 Buick Lacrosse, and 2006-2008 Pontiac Grand Prix. This scope includes the Trailblazer/Envoy variants: 2002-2006 Envoy XL/Trailblazer EXT and 2004-2005 Envoy XUV. The original scope of this investigation was expanded to include all vehicles equipped with the subject Headlight Driver Module (HDM). The focus of the investigation was to determine whether actions performed by General Motors adequately addressed any unreasonable risk to motor vehicle safety in the subject vehicles concerning the headlights and the HDM that controls them.Under normal electrical load and environmental conditions, the HDM can overheat inside the Underhood Electrical Center (UEC). This can cause the module to fail and result in a simultaneous loss of both low beam headlights and both daytime running lights (DRLs), often with no warning or prior detectability to the driver. This failure can be intermittent or permanent. No other exterior lights are affected. High beams, turn signals, brake lights, and reverse lights are still operational.General Motors addressed this issue with 2 recalls (14V755 & 15V519) and a special coverage program (N172091910). In view of the recalls and special coverage program implemented by GM and the vehicle high beams continuing to operate, ODI has tentatively concluded that the actions taken by GM mitigate any unreasonable risk to safety posed by HDM failure in the subject vehicles.Accordingly, the investigation is closed. The closing of this investigation does not constitute a finding by NHTSA that a safety-related defect does not exist. The agency reserves the right to take additional action if warranted by new circumstances.The ODI reports cited above are available for review online at NHTSA.gov under the identification numbers in the attached document.

Recorded closure: Mar 29, 2021

Find investigation RQ17002
Opened Jul 10, 2007 ClosedFUEL PUMP MODULE LEAKS GASOLINEEA07009

DURING THE COURSE OF THIS EA INVESTIGATION, ODI OBSERVED THAT THE MAJORITY OF THE COMPLAINTS (88%) AND WARRANTY CLAIMS (94%) WERE REPORTED FOR VEHICLES THAT ARE REGISTERED FOR USE IN THE SALT BELT REGION OF THE US.THIS AREA INCLUDES 20 STATES IN THE NORTHEAST, MID ATLANTIC AND THE MIDWEST REGIONS AND THE DISTRICT OF COLUMBIA.CONSUMERS IN THE SALT BELT REGION REPORTED TO ODI THAT THEY COULD SMELL FUEL VAPORS IN THEIR VEHICLES WHILE DRIVING.UPON FURTHER EXAMINATION OF THEIR VEHICLES, THEY DISCOVERED THAT FUEL VAPORS WERE COMING OUT OF THE TOP OF THE FUEL TANK. THIS CONDITION IS CAUSED BY CORROSION OF THE RETURN AND SENDER LINES OF THE FUEL PUMP MODULE.WATER AND ROAD SALT COLLECT ON TOP OF THE FUEL PUMP LEADING TO SMALL PINHOLES APPEARING ON THE FUEL LINES.FUEL MAY LEAK AND COLLECT ON TOP OF THE MODULE AND/OR SPILL ONTO THE GROUND.THE DATA EVALUATED UNDER THIS INVESTIGATION REFLECT A RELATIVELY LOW FREQUENCY OF OCCURRENCE THAT LARGELY ARISES IN SALT BELT STATES.GM HAS EXTENDED THE WARRANTY ON THE SUBJECT COMPONENT TO TEN YEARS OR 120,000 MILES.FURTHER USE OF AGENCY RESOURCES DOES NOT APPEAR TO BE WARRANTED AT THIS TIME; ACCORDINGLY, THIS INVESTIGATION IS CLOSED.THE CLOSING OF THIS INVESTIGATION DOES NOT CONSTITUTE A FINDING BY NHTSA THAT NO SAFETY-RELATED DEFECT EXISTS.THE AGENCY RESERVES THE RIGHT TO TAKE FURTHER ACTION IF WARRANTED BY THE CIRCUMSTANCES.FOR ADDITIONAL INFORMATION SELECT DOCUMENT SEARCH.

Recorded closure: Aug 28, 2008

Find investigation EA07009

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