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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.

About this comparison →

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
70,000 miles · Aug 10, 2014
Electrical SystemPower Train

VEHICLE SUDDENLY 'SHUTTERED' AT 65MPH ON THE TOLLWAY AND THE INSTRUMENT PANEL FAILED COMPLETELY, INDICATING BRAKE SYSTEM FAILURE. CONCURRENTLY, INDICATOR LIGHT FOR REAR DRIVE TRAIN ALSO SHOWING FAILURE. UNSURE IF THESE ISSUES WERE RELATED OR COINCIDENTAL. DIAGNOSTICS/TESTING BY MECHANIC RESULTED IN REPLACEMENT OF SEVERAL ELECTRI…

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VEHICLE SUDDENLY 'SHUTTERED' AT 65MPH ON THE TOLLWAY AND THE INSTRUMENT PANEL FAILED COMPLETELY, INDICATING BRAKE SYSTEM FAILURE. CONCURRENTLY, INDICATOR LIGHT FOR REAR DRIVE TRAIN ALSO SHOWING FAILURE. UNSURE IF THESE ISSUES WERE RELATED OR COINCIDENTAL. DIAGNOSTICS/TESTING BY MECHANIC RESULTED IN REPLACEMENT OF SEVERAL ELECTRICAL SYSTEM PARTS, INCLUDING A/C DELCO TRANS SELECTOR SWITCH; A/C DELCO SPEED SENSOR; A/C DELCO IGNITION SWITCH, AND REPAIR OF 4-WHEEL DRIVE ENGINE HARNESS, TOTALING EXPENSE OF $808.37. SINCE REPAIR, NO FURTHER INCIDENT HAS OCCURRED WITH THESE COMPONENTS. WHILE IT IS CLEAR THAT WOULD SEEM RELATED TO GM IGNITION SWITCH RECALL, THERE IS NO PUBLISHED INDICATION THAT GM SUV'S PRODUCED UNDER THE ISUZU NAME-PLATE HAVE BEEN INCLUDED IN THE RECALL, AS THEY SHOULD BE. *TR

NHTSA ODI #10621194

104,000 miles · Aug 8, 2014
VisibilityFire

TL* THE CONTACT OWNS A 2005 ISUZU ASCENDER. THE CONTACT STATED WHILE HE WAS DRIVING OUT OF HIS DRIVEWAY AT 2 MPH HE NOTICED SMOKE COMING FROM BOTH THE FRONT AND REAR DRIVER'S SIDE POWER WINDOW SWITCHES WHICH IMMEDIATELY FAILED TO FUNCTION. THE FAILURE WAS NOT DIAGNOSED NOR WAS THE VEHICLE REPAIRED. THE MANUFACTURER WAS NOTIFIE…

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TL* THE CONTACT OWNS A 2005 ISUZU ASCENDER. THE CONTACT STATED WHILE HE WAS DRIVING OUT OF HIS DRIVEWAY AT 2 MPH HE NOTICED SMOKE COMING FROM BOTH THE FRONT AND REAR DRIVER'S SIDE POWER WINDOW SWITCHES WHICH IMMEDIATELY FAILED TO FUNCTION. THE FAILURE WAS NOT DIAGNOSED NOR WAS THE VEHICLE REPAIRED. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 104,000.

NHTSA ODI #10620910

90,000 miles · Jul 30, 2014
Electrical System

TL * THE CONTACT OWNS A 2005 ISUZU ASCENDER. WHILE DRIVING APPROXIMATELY 60 MPH, ALL OF THE INSTRUMENT PANEL GAUGES FAILED EXCEPT FOR THE TEMPERATURE AND RPM GAUGES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOTIFIED. THE APPROXIMATE FAILURE MILEAGE WAS 90,000.

NHTSA ODI #10617750

57,377 miles · Apr 7, 2014
Electrical System

MY CAR RUNS FINE BUT FOR SOME REASON MY INSTRUMENT PANEL IS ERRATIC OR DOESN'T WORK AT ALL, MY SPEEDOMETER FLUCTUATES, THE RPM, OIL AND GAS LEVEL GAUGES DO NOT WORK AT ALL. *TR

NHTSA ODI #10578021

43,015 miles · Feb 11, 2014
Fuel System, Gasoline

FUEL GAUGE WORKING ERRATICALLY. CURRENTLY THE GAUGE IS PAST THE FULL MARK, EVEN THOUGH THE GAS TANK SHOULD HALF FULL. *TR

NHTSA ODI #10563830

80,000 miles · Jan 1, 2014
Electrical SystemFuel System, GasolinePower Train

THE CHECK ENGINE LIGHT( THERMOSTAT), SPEEDOMETER, FUEL GAUGE AND NOW THE OIL PRESSURE GAUGE HAVE STOPPED WORKING OR WORK SPORADICALLY AND INACCURATELY. THESE PROBLEMS ARE LISTED IN ORDER OF FAILURE AND THEY STARTED AT APPROXIMATELY 85,000MI AND THE LAST WAS AT 106,000 MILES. IF I HAD KNOWN THIS VEHICLE WAS MADE BY GM, I WOULD N…

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THE CHECK ENGINE LIGHT( THERMOSTAT), SPEEDOMETER, FUEL GAUGE AND NOW THE OIL PRESSURE GAUGE HAVE STOPPED WORKING OR WORK SPORADICALLY AND INACCURATELY. THESE PROBLEMS ARE LISTED IN ORDER OF FAILURE AND THEY STARTED AT APPROXIMATELY 85,000MI AND THE LAST WAS AT 106,000 MILES. IF I HAD KNOWN THIS VEHICLE WAS MADE BY GM, I WOULD NOT HAVE BOUGHT IT. IT WILL DEFINITELY BE THE LAST GM PRODUCT IN MY HOUSEHOLD. I HAVE HAD MANY AND ALL BUT ONE HAD NUMEROUS PROBLEMS. A FOOTNOTE: A PART OF THE GEARSHIFT LINKAGE BROKE AT APPROX. 95,000MI. *TR

NHTSA ODI #10558060

62,480 miles · Dec 13, 2013
Electrical System

ON 11/27/13 I WAS TRAVELING FROM MINNEAPOLIS MN TO OMAHA NE FOR THE HOLIDAY WEEKEND. I HAD JUST LEFT A REST STOP ON HWY 35 SOUTHBOUND. AT ONE POINT I HAPPENED TO ROUTINELY SCAN THE INSTRUMENT CLUSTER AND SUDDENLY NOTICED THAT, ACCORDING TO THE GAUGE, MY ENGINE OIL PRESSURE WAS SHOWING 60+ PSI AND WAS CONTINUING TO RISE. I QUI…

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ON 11/27/13 I WAS TRAVELING FROM MINNEAPOLIS MN TO OMAHA NE FOR THE HOLIDAY WEEKEND. I HAD JUST LEFT A REST STOP ON HWY 35 SOUTHBOUND. AT ONE POINT I HAPPENED TO ROUTINELY SCAN THE INSTRUMENT CLUSTER AND SUDDENLY NOTICED THAT, ACCORDING TO THE GAUGE, MY ENGINE OIL PRESSURE WAS SHOWING 60+ PSI AND WAS CONTINUING TO RISE. I QUICKLY PULLED OFF ON THE HIGHWAY SHOULDER AND SHUT THE ENGINE DOWN. THE GAUGE NOW READ OVER "80". I GOT OUT AND CHECKED UNDER THE HOOD, BUT FOUND NOTHING UNUSUAL. NOTE: WHEN THE GAUGE WENT CRAZY, THERE WERE NO OTHER WARNING LIGHT OR INDICATORS. I GOT BACK IN THE VEHICLE AND IT STARTED NORMALLY AND THE ENGINE SOUNDED FINE. I PROCEEDED INTO MASON CITY IA AND FOUND A GM DEALER. THERE WERE NO MECHANICS PRESENT, BUT A HELPFUL SALES PERSON TOOK ALOOK AT THE GAUGE AND SAID IT WAS PROBABLY A FAULTY STEP MOTOR IN THE GAUGE OR A BAD SENDER UNIT. IN EITHER CASE, HE SAID IT WAS OK TO DRIVE TO OMAHA, BUT SUGGESTED STOPPING AT A GM DEALER IN OMAHA ON FRIDAY, AFTER THANKSGIVING. I DID TAKE THE VEHICLE TO A GM DEALER ON FRIDAY AND A MECHANIC CHECKED THE GAUGE AND SAID THAT IT WAS A FAULTY STEPPER MOTOR IN THE GAUGE. HE SAID GM HAS HAD ALL KINDS OF TROUBLE WITH THE INSTRUMENT CLUSTERS ON THE MID-SIZE SUVS THAT WERE MANUFACTURED FROM ABOUT 2003 THROUGH ABOUT 2007. HE SAID I SHOULD CHECK WITH A GM DEALER BACK IN MINNEAPOLIS TO SEE WHETHER GM IS COVERING MY BAD GAUGE. HE SAID THAT I WAS LUCKY THAT MY FIRST BAD GAUGE IN THE CLUSTER WAS OIL PRESSURE, RATHER THAN SPEEDOMETER OR GAS GAUGE. ON RETURN TO MINNEAPOLIS, A LOCAL GM DEALER CONFIRMED THAT THE STEPPER MOTOR IN MY OIL PRESSURE GAUGE WAS DEFECTIVE, BUT CHECKED AND SAID IT WASN'T COVERED BY ANY GM WARRANTY. HE SAID THAT THE INSTRUMENT CLUSTER COULD BE REHABBED (ALL STEPPER MOTORS REPLACED) FOR ABOUT $600. RESEARCH INDICATES THAT GM HAS BEEN AWARE OF THIS PROBLEM FOR YEARS BUT HAS OFFERED LITTLE RELIEF. *TR

NHTSA ODI #10555991

95,000 miles · Oct 3, 2013
Fuel/propulsion System

TL* THE CONTACT OWNS A 2005 ISUZU ASCENDER. THE CONTACT STATED THAT THE FUEL GAUGE PROVIDED AN INACCURATE READING AND FLUCTUATED SPORADICALLY. THE VEHICLE WAS NOT TAKEN FOR DIAGNOSIS OR REPAIR. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 95,000. THE VIN W…

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TL* THE CONTACT OWNS A 2005 ISUZU ASCENDER. THE CONTACT STATED THAT THE FUEL GAUGE PROVIDED AN INACCURATE READING AND FLUCTUATED SPORADICALLY. THE VEHICLE WAS NOT TAKEN FOR DIAGNOSIS OR REPAIR. THE MANUFACTURER WAS NOT MADE AWARE OF THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 95,000. THE VIN WAS NOT AVAILABLE.

NHTSA ODI #10546650

90,000 miles · Sep 10, 2013
Electrical System

TL* THE CONTACT OWNS A 2005 ISUZU ASCENDER. THE CONTACT STATED THAT THE VEHICLE FAILED TO START. IN ADDITION, THE FUEL GAUGE WOULD NOT OPERATE AND THE CHECK ENGINE WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR A DIAGNOSTIC TEST. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAI…

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TL* THE CONTACT OWNS A 2005 ISUZU ASCENDER. THE CONTACT STATED THAT THE VEHICLE FAILED TO START. IN ADDITION, THE FUEL GAUGE WOULD NOT OPERATE AND THE CHECK ENGINE WARNING LIGHT WAS ILLUMINATED. THE VEHICLE WAS NOT TAKEN TO THE DEALER FOR A DIAGNOSTIC TEST. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE. THE FAILURE MILEAGE WAS 90,000. THE CURRENT MILEAGE WAS 110,000.

NHTSA ODI #10542841

95,000 miles · Aug 12, 2013
Fuel System, Gasoline

2005 ISUZU ASCENDER-FUEL GAUGE NOT WORKING, OCCURRED AT APPROXIMATELY 95,000 MILES. RECEIVED NOTICE FROM ISUZU STATING THEY WILL REPLACE FUEL LEVEL SENSOR IF THE CONDITION OCCURS WITHIN 10 YEARS OF THE DATE VEHICLE WAS ORIGINALLY PURCHASED OR 120,000 AT NO CHARGE, WHICH EVER OCCURS FIRST. MY ASCENDER HAS APPROX. 128,000 MILES, S…

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2005 ISUZU ASCENDER-FUEL GAUGE NOT WORKING, OCCURRED AT APPROXIMATELY 95,000 MILES. RECEIVED NOTICE FROM ISUZU STATING THEY WILL REPLACE FUEL LEVEL SENSOR IF THE CONDITION OCCURS WITHIN 10 YEARS OF THE DATE VEHICLE WAS ORIGINALLY PURCHASED OR 120,000 AT NO CHARGE, WHICH EVER OCCURS FIRST. MY ASCENDER HAS APPROX. 128,000 MILES, SEEING THAT THERE ARE A LOT OF COMPLAINTS IN REGARD TO FUEL GAUGE ISUZU SHOULD REPAIR IT REGARDLESS OF MILEAGE. *TR

NHTSA ODI #10534818

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.