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2005 Isuzu Ascender

Owner reports · Recalls · Investigations

Similar to other model years

Owner complaints for the 2005 Isuzu Ascender do not stand out strongly from the model-year median of 32.

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How this year compares

Owner complaints by model year

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Counts vary with age, sales and reporting. They are not failure rates.

What owners reported most

All reported categories

Tap a category to read its complaints. One report may name several components.

When problems were reported

Mileage at the reported incident

55 reports with mileage · 9 unknown

NHTSA’s mileage field refers to the reported incident, not necessarily the filing date. This shows report counts, not the likelihood of a failure.

What to inspect

Issues worth paying extra attention to based on owner reports.

  • Electrical System. Review the 27 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Fuel System, Gasoline. Review the 14 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →
  • Air Bags. Review the 9 owner reports in this category and discuss these concerns during a pre-purchase inspection. Read reports →

NHTSA owner reports · September 18, 2026 snapshot.

3 crash reports1 fire reports1 injury reports

What owners actually said

64 reports
73,826 miles · Aug 28, 2010
Air Bags

I SWERVED TO MISS CAR CROSSING CENTER LINE AT WHICH TIME THE SIDE AIRBAG DEPLOYED UNEXPECTEDLY. THERE WERE NO COLLISIONS OR INJURIES, JUST THE UNEXPECTED AIR BAG DEPLOYMENT. *TR

NHTSA ODI #10352508

Mileage unknown · Jul 13, 2010
Fuel System, Gasoline

2005 ISUZU ASCENDER GAS TANK WHEN FILLED REGISTER EMPTY. *TR

NHTSA ODI #10342880

80,000 miles · Jul 13, 2010
Fuel System, Other

TL* THE CONTACT OWNS A 2005 ISUZU ASCENDER. THE CONTACT STATED THE FUEL LEVEL GAUGE WOULD DISPLAY INACCURATE FUEL LEVELS. WHEN FILLING THE VEHICLE WITH GASOLINE, THE FUEL LEVEL INDICATOR WOULD REGISTER THE FUEL TANK AS EMPTY. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR A DIAGNOSIS OF THE FAILURE OR REPAIRS. THE MANUFACTURER WAS …

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TL* THE CONTACT OWNS A 2005 ISUZU ASCENDER. THE CONTACT STATED THE FUEL LEVEL GAUGE WOULD DISPLAY INACCURATE FUEL LEVELS. WHEN FILLING THE VEHICLE WITH GASOLINE, THE FUEL LEVEL INDICATOR WOULD REGISTER THE FUEL TANK AS EMPTY. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR A DIAGNOSIS OF THE FAILURE OR REPAIRS. THE MANUFACTURER WAS NOT CONTACTED. THE FAILURE AND CURRENT MILEAGES WERE 80,000.

NHTSA ODI #10342879

64,000 miles · May 11, 2010
Fuel System, Gasoline

GAS GAUGE DOES NOT FUNCTION PROPERLY ON A 2005 ISUZU ASCENDER. *TR

NHTSA ODI #10329941

51,200 miles · Apr 14, 2010
Electrical System

MY 2005 ISUZU ASCENDER (GM TRAILBLAZER) HAS CRAZY SPEEDOMETER IN IT DOES NOT WORK FIRST THING IN THE MORNING UNTIL I HAVE DRIVEN A COUPLE OF MILES. IT HAS ALSO JUST GOT STUCK ON 72 MPH AND JUST STAYED THERE EVEN AFTER TURNING IT OFF. THE VEHICLE HAS 52,000 MILES ON IT AND OF COURSE JUST OUT OF WARRANTY. *TR

NHTSA ODI #10325624

70,000 miles · Mar 26, 2010
Vehicle Speed Control

MY ISUZU SPEEDOMETER STOPPED WORKING. I TOOK IT TO THE DEALER AND THEY SAID THAT IT WAS NOT A RECALL ISSUE. I CANT SEE HOW SOMETHING LIKE THAT IS NOT MY CAR ONLY HAS 70,000 MILES ON IT AND SHOULD NOT BE HAVING PROBLEMS LIKE THAT.

NHTSA ODI #10322308

90,000 miles · Feb 23, 2010
Air Bags

DECEMBER 22ND MY SON WAS DRIVING THE FAMILY ISUZU ASCENDER, (BASICALLY AN UPSCALE RE-BADGED CHEVROLET TRAILBLAZER) WHEN WITHOUT ANY WARNING ALL THE SIDE AIRBAGS DEPLOYED. FORTUNATELY HE WAS ABLE TO SAFELY STOP THE VEHICLE, ALBEIT HE WAS SEVERELY STUNNED, DAZED, AND HIGHLY CONFUSED FROM THE ABRUPT EXPLOSION, AND VIOLENT FORCEFUL…

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DECEMBER 22ND MY SON WAS DRIVING THE FAMILY ISUZU ASCENDER, (BASICALLY AN UPSCALE RE-BADGED CHEVROLET TRAILBLAZER) WHEN WITHOUT ANY WARNING ALL THE SIDE AIRBAGS DEPLOYED. FORTUNATELY HE WAS ABLE TO SAFELY STOP THE VEHICLE, ALBEIT HE WAS SEVERELY STUNNED, DAZED, AND HIGHLY CONFUSED FROM THE ABRUPT EXPLOSION, AND VIOLENT FORCEFUL PROJECTION OF THE BAGS. WE CONTACTED OUR INSURANCE CARRIER AMERIPRISE, AND FILED A DAMAGE CLAIM (REP 888-404-5365 EXT. 6555 ). A FIELD ADJUSTER CAME TO OUR HOME WHERE WE HAD THE VEHICLE TOWED, AND EXAMINED THE CAR FOR POSSIBLE IMPACT OR AN UNKNOWN COLLISION. CONSEQUENTLY SINCE THE AIRBAG DAMAGE WAS APPARENTLY NOT THE RESULT OF AN ACCIDENT; THE INSURANCE COMPANY DENIED OUR CLAIM AND REFERRED US TO ISUZU FOR SATISFACTION. WE CALLED ISUZU AMERICA OWNER RELATIONS SEEKING SOME ASSISTANCE (REP 800-255-6727 EXT 272) HOWEVER WE WERE TOLD WE NEEDED TO TOW THE VEHICLE 54 MILES TO THE NEAREST DEALERSHIP. ONCE IT ARRIVED AT THE REPAIR FACILITY, WE COULD HAVE THE SUV AIRBAG DIAGNOSTIC SYSTEM COMPLETELY CHECKED FOR CAUSE. OF COURSE EVEN THOUGH WE HAD BEEN TOLD DIFFERENTLY BY ISUZU AMERICA, THE COST BURDEN WAS COMPLETELY AT OUR EXPENSE. ELK GROVE VW (916-405-2643 REP) RAN A DIAGNOSTIC OF THE SYSTEM, AND CONCLUDED THERE WAS A 'GLITCH IN THE SYSTEM'; AND THIS MALFUNCTION RESULTED IN THE AIRBAG DEPLOYMENT, AND THE SEATBELT MECHANISM TO LOCK. THE REPAIR COST OF THE GLITCH ALONE, WILL COST US IN EXCESS OF $5600. IN ADDITION TO THE DIAGNOSTIC AND TOW. OUR INSURANCE COMPANY IS NOT A FURTHER RESOURCE FOR ASSISTANCE, AND ISUZU IS ASSUMING NO RESPONSIBILITY, BASED SOLELY ON THE VEHICLE BEING BEYOND THE ELECTRICAL WARRANTY PERIOD. WHEN WE PURCHASE THIS ISUZU NEW, WE PAID A MAJOR PREMIUM TO HAVE SIDE IMPACT AIRBAGS. THIS COSTLY OPTION WE FELT WAS WARRANTED IN ORDER TO PROVIDE ADDITIONAL SAFETY TO OUR FAMILY. INSTEAD THEIR PROTECTION HAS BEEN SERIOUSLY JEOPARDIZED, AND UNFORTUNATELY IS NOW A MAJOR SAFETY LIABILITY AND EXPENSE. *TR

NHTSA ODI #10313294

91,200 miles · Sep 21, 2009
Fuel System, Gasoline

2005 ISUZU ASCENDER. FILLED UP MY TANK AND THE FUEL GAUGE WENT TO EMPTY WITH THE ORANGE/YELLOW LIGHT ON. FUEL GAUGE DOES NOT WORK. THERE HAVE BEEN MANY COMPLAINTS OF THIS SAME PROBLEM WITH GM VEHICLES. THERE SHOULD BE A RECALL ON THIS. *TR

NHTSA ODI #10284782

Mileage unknown · May 23, 2009
TiresCrash

DRIVING WHEN MY REAR DRIVER SIDE TIRE EXPLODED SEPARATED CAUSING MY ASCENDER ISUZU 2005 TO SERVE AND ALMOST LOSE CONTROL AND CAUSE OVER $ 5,000 IN DAMAGE. *TR

NHTSA ODI #10269772

14,836 miles · Oct 25, 2007
Electrical System

IT TOOK A WHILE BEFORE THE ELECTRICAL ISSUES TO PROGRESS WHERE THEY WHERE VERIFIABLE WITH SOLID SYMPTOMS AS IN TRANSMISSION FAULTS AND POOR PERFORMANCE ALONG WITH LOSS OF COMMUNICATION TO STEERING WHEEL CONTROLS, AC AND BLOWER FAILURE, RADIO ETC. THE FULL EXTENT OF WHAT IS AFFECTED AND HOW IT WILL PROGRESS AS IT HAD TO THIS PO…

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IT TOOK A WHILE BEFORE THE ELECTRICAL ISSUES TO PROGRESS WHERE THEY WHERE VERIFIABLE WITH SOLID SYMPTOMS AS IN TRANSMISSION FAULTS AND POOR PERFORMANCE ALONG WITH LOSS OF COMMUNICATION TO STEERING WHEEL CONTROLS, AC AND BLOWER FAILURE, RADIO ETC. THE FULL EXTENT OF WHAT IS AFFECTED AND HOW IT WILL PROGRESS AS IT HAD TO THIS POINT IS UNKNOWN TO ME OR SERVICE PEOPLE. THE WIRING HAS BEEN MODIFIED AND THE IGNITION HAS BEEN REPLACED 3 TIMES TO TRY AND RESOLVE THIS ISSUE, AND THE EFFECTS OF MODIFICATION DID NOT WORK AND WHAT THAT WILL BRING ABOUT IS UNKNOWN AT THIS TIME. I HAVE NOTIFIED MANUFACTURE, BUT AFTER I LEARNED OF THIS SITE AND LOOKED AT CHEVY TRAIL BLAZER AND ISUZU ASCENDER ELECTRICAL ISSUES ( SAME CAR ), IT IS CLEAR TO ME THAT I AM NOT ALONE AND THERE IS NOT A KNOWN FIX FOR THIS HARDWARE OR POSSIBLY SOFTWARE ISSUE. THE VEHICLE HAS STRANDED MY DAUGHTERS, AND GUEST 3 STATES AWAY FORM HOME AFTER WIRING MODIFICATION THAT WAS SUPPOSED TO FIX THE ELECTRICAL ISSUE. THANKFULLY WE GOT STRANDED IN A TOWN AND NOT IN THE MIDDLE OF DESERT ON THE WAY TO COLORADO. *TR

NHTSA ODI #10206875

Official recalls

1

05V035000 · Visibility:windshield

Feb 3, 2005

CERTAIN SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 212, 'WINDSHIELD MOUNTING.' THE WINDSHIELD URETHANE BEAD MAY NOT HAVE ADHERED TO THE BODY IN CERTAIN AREAS DURING THE CURE PROCESS.

Consequence & remedy

Consequence: IF A CRASH OCCURS, THE WINDSHIELD MAY NOT BE RETAINED, INCREASING THE RISK OF INJURY TO A VEHICLE OCCUPANT.

Remedy: DEALERS WILL REPLACE THE WINDSHIELD FREE OF CHARGE. THE RECALL BEGAN ON MARCH 10, 2005. OWNERS MAY CONTACT BUICK AT 1-866-608-8080, CHEVROLET AT 1-800-630-2438, OR GMC AT 1-866-996-9463.

Model-level recall history does not show whether a particular VIN is affected or has received a repair. Check a VIN with NHTSA ↗

NHTSA investigations

1

RQ17002 · Loss Of Headlights

Opened Apr 24, 2017 · Closed Mar 29, 2021

Status: closed (inferred from source dates) · Exterior Lighting:headlights

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.