2007 Isuzu Ascender

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.

On August 15, 2012 General Motors (GM) announced a regional recall action (12V-406) involving model year (MY) 2006-2007 Chevrolet Trailblazer, GMC Envoy, Buick Rainier, Isuzu Ascender and MY2005-2007 SAAB 9-7x vehicles originally sold or currently registered in the salt belt states of Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri, New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, West Virginia, Wisconsin, and the District of Columbia. The recall remedy requires the inspection and repair or replacement of the master power window switch, which GM refers to as a driver door module (DDM). At the same time, GM implemented a special coverage program to replace failed DDMs for vehicles registered outside of these states. ODI was not satisfied with GM's exclusion of non-salt belt vehicles and continued its investigation. On June 13, 2013, GM submitted a related recall notification (13V-248) to reclassify the initial special coverage program into a safety recall for vehicles that were not previously repaired under special coverage.The Office of Defects Investigation (ODI) opened Engineering Analysis EA12-004 on June 11, 2012 to further investigate allegations of DDM thermal incidents in model year (MY) 2006-2007 Chevrolet Trailblazer vehicles. Thermal incidents involve cases where fire-related events such as smoke and melt are present. ODI has received 170 reports alleging a thermal event occurred. Complainants stated that the DDM melted and in some cases produced odor and/or smoke. Fourteen of these incidents led to a fire where visible flames were reported or the damage extended significantly beyond the DDM. In addition to the 170 reports listed above, ODI received 63 reports alleging the DDM acted erratically or became inoperative. In response to ODI's Information Request (IR), GM provided 619 unique consumer complaints that related to the alleged problem. Seventy-seven of those reports led to a fire with flame, and 4 reported injuries of smoke inhalation and/or slight burns from contact with hot switches. GM also submitted 20,400 warranty claims for replacement of the DDM, most of which involved inoperative switches. The problem condition is caused by fluids, such as rain water, entering the driver's door module and subsequently causing corrosion that could result in an electrical short in the printed circuit board. A short may cause the power door lock and power window switches to function intermittently or become inoperative. However, the electrical short may also cause overheating that could melt components of the door module, producing odor, smoke or in some cases fire with flame. The circuit board was redesigned and GM implemented the new design into vehicle production on May 14, 2007. All failures cited above occurred in vehicles produced before this build date (i.e., with the original design DDM). GM also reported that all MY 2006-2007 GMT360/370 platform vehicles and MY 2005 SAAB 9-7x vehicles utilized the same DDM and therefore ODI expanded the subject population to include these vehicles.This investigation is closed on the basis of GM's announcement of safety recalls 12V-406 and 13V-248. The ODI complaints cited above can be reviewed at: http://www-odi.nhtsa.dot.gov/owners/SearchNHTSAID, see the attached list for ODI numbers.

The contact owns a 2007 Isuzu Ascender. The contact stated that while the vehicle was parked and turned off, the driver’s side window unexpectedly rolled down. There were no warning lights illuminated. Upon entering the vehicle, the contact noticed an abnormally strong smoky odor inside the vehicle. After inspecting the vehicle, the contact discovered that the driver’s door master window switch module had melted and was inoperable. The contact ordered a replacement part for the failure. The dealer was contacted. The vehicle was not diagnosed or repaired. The dealer informed the contact that the vehicle could not be repaired because the door master window switch module was an older module. The manufacturer was made aware of the failure. The approximate failure mileage was 94,000.

NHTSA ID

11720732

Incident

Feb 26, 2026

Mileage

94,000 mi

TL* THE CONTACT OWNS A 2007 ISUZU ASCENDER. WHILE DRIVING AT 30 MPH, THE HEADLIGHTS AND THE LOW BEAMS FAILED WITHOUT WARNING. AFTER FIVE MINUTES, THE VEHICLE RESUMED NORMAL OPERATION; HOWEVER, THE LOW BEAM LIGHT FAILURE RECURRED. THE CONTACT RECEIVED NOTIFICATION OF NHTSA CAMPAIGN NUMBER: 14V755000 (EXTERIOR LIGHTING); HOWEVER, THE PART NEEDED TO DO THE REPAIR WAS UNAVAILABLE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS 160,000.

NHTSA ID

10732465

Incident

Jul 4, 2015

Mileage

160,000 mi

TL* THE CONTACT OWNS A 2007 ISUZU ASCENDER. THE CONTACT STATED THAT WHILE DRIVING AT VARIOUS SPEEDS OVER BUMPS AND RAILROAD TRACKS, A CHIME SOUNDED AS ALL THE WARNING LIGHTS ILLUMINATED. THE CONTACT ALSO STATED THAT THE DRIVERS SIDE LATCH FAILED AND WAS UNABLE TO OPEN THE DOOR ELECTRONICALLY. THE FAILURE OCCURRED ON SEVERAL OCCASIONS. THE VEHICLE WAS REPAIRED UNDER NHTSA CAMPAIGN NUMBER: 14V404000 (VISIBILITY) BUT THE FAILURE RECURRED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED FOR THE INITIAL FAILURE. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 123,125.

NHTSA ID

10664811

Incident

Sep 2, 2014

Mileage

123,125 mi

ALL THE LIGHTS ON BOARD ARE ON...STAYS ON FOR HOURS THAN GOES PARTIAL OFF ... ENGINE LIGHTS ON ZERO GAS ON ALL THE TIME... IS RISK TO DRIVE WITH ALL BOARD LIGHTS ON SO WHAT SHOULD I DO? IN PHOENIX, AZ. WHERE WE LIVE THERE IS NO ISUZU DEALER... *TR

NHTSA ID

10568196

Incident

Apr 1, 2013

Mileage

39,100 mi

I PURCHASED A 2007 ISUZU ASCENDER WITH 9,900 MILES ON MONDAY, FEBRUARY 2, 2009. IN NOVEMBER OF 2010, THE GAS GAUGE STARTED TO READ INACCURATELY. IF I FILLED THE TANK, THE GAS GAUGE WOULD SHOW FILLED. AFTER DRIVING APPROXIMATELY 70-80 MILES, THE GAUGE NEEDLE WOULD SLOWLY DROP TO 'E' AND THE LOW FUEL LIGHT WOULD COME ON. I SEARCHED THIS ISSUE ON THE INTERNET AND FOUND SEVERAL SIMILAR COMPLAINTS INVOLVING GMC VEHICLES. I AM NOT AWARE OF ANY RECALLS THAT WERE ISSUED, HOWEVER, I FEEL THERE SHOULD BE. BASED ON THE NUMBER OF PEOPLE WHO EXPERIENCE THIS PROBLEM. FOR NOW, I CONTINUE TO FILL THE TANK, RESET THE TRIPOMETER AND REFILL ONCE I'VE DRIVEN 90-100 MILES, AS I AM NOT PREPARED TO SPEND $800 TO REPLACE THE FAULTY FUEL SENDING UNIT...THE MILEAGE ON THIS VEHICLE IS 24K. THANK YOU *TR

NHTSA ID

10438093

Incident

Nov 5, 2010

Mileage

15,000 mi

FUEL GAUGE IN 2007 ISUZU ASCENDER STARTED SHOWING INCORRECT FUEL LEVEL AS I WAS DRIVING SOUTH ON I-71 SOUTH OF COLUMBUS,OH. IT STARTED SHOWING EMPTY BUT SHOULD HAVE BEEN AT LEST HALF A TANK. *TR

NHTSA ID

10415589

Incident

May 14, 2011

TL*THE CONTACT OWNS A 2007 ISUZU ASCENDER. THE CONTACT STATED THAT THE FUEL GAUGE DISPLAYED THE INCORRECT AMOUNT OF FUEL THAT WAS IN THE VEHICLE. THE DEALER DIAGNOSED THAT THE FUEL SENDER UNIT NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE AND CURRENT MILEAGE WAS 42,000. UPDATED 07/20/11*LJ

NHTSA ID

10407296

Incident

Jun 17, 2011

Mileage

42,000 mi

I OWN A 2007 ISUZU ASCENDER I HAVE RIGHT AT 42,000 MILES ON IT I FILLED THE TANK YESTERDAY AND HAD 3/4 A TANK REMAINING LAST NIGHT THIS MORNING ON MY WAY TO WORK I HAD DRIVEN A LESS THAN A MILE FROM MY HOME AND THE GAS GAUGE STARTED GOING DOWN AND WITHIN A MILE FROM HOME MY GAS LIGHT WAS ON AND MY TANK SHOWED EMPTY . I DROVE MY VEHICLE HOME AND SWITCHED TO MY OTHER VEHICLE WHEN I PULLED IN MY DRIVEWAY AND PUT THE VEHICLE IN PARK THE GAS GAUGE JUMPED BACK UP TO 3/4 FULL . I CALLED THE ISUZU DEALER IN KNOXVILLE TN AND AS SOON AS I STATED WHAT WAS GOING ON HE KNEW WHAT WAS WRONG WITH MY VEHICLE SO I FIGURED THAT THEY HAD MORE PROBLEMS WITH THIS THAN JUST MINE SO I LOOKED ONLINE WHEN I GOT OF WORK AND I HAVE READ NUMEROUS REPORTS AND THEY ARE ALL THE SAME PROBLEM WITH THESE VEHICLES STARTING ALL THE WAY BACK TO THE 2005'S . WHY ON EARTH HAVE THESE PROBLEMS NOT BE RECALLED FOR THIS YET THIS IS A ONGOING PROBLEM SEEMS LIKE ON THESE PARTICULAR VEHICLES. *TR

NHTSA ID

10407286

Incident

Jun 17, 2011

Mileage

42,000 mi

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.

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

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.

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.

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.

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