2005 Isuzu ASCENDER problems and owner complaints
Explore the records behind recurring owner reports.
Key facts
64 owner complaints analyzed
1 distinct recall campaigns
80,000 mi median reported failure mileage
Scope: 2005 model year. Data snapshot: . 55 complaints include usable failure mileage.
Most common problems
Electrical System is the most frequently named component, appearing in 22 of 64 complaints (34.4%). A complaint can name multiple components.
| Topic | Matching reports | Share of complaints |
|---|---|---|
| Electrical and battery issues | 7 | 10.9% |
| Fuel system concerns | 6 | 9.4% |
| Steering behavior | 5 | 7.8% |
| Braking behavior | 4 | 6.3% |
| Transmission and shifting | 2 | 3.1% |
| Engine operation | 2 | 3.1% |
Topic matches use published keyword rules. They describe mentions, including negations or comparisons, and do not confirm a diagnosis. Read the matching rules.
Component breakdown
Number of unique complaints naming each component. Top eight shown.
| Category | Count |
|---|---|
| Electrical System | 22 |
| Fuel System, Gasoline | 14 |
| Fuel/Propulsion System | 6 |
| Air Bags | 5 |
| Electrical System: Instrument Cluster/Panel | 5 |
| Exterior Lighting | 5 |
| Vehicle Speed Control | 4 |
| Air Bags:Side/Window | 3 |
Electrical System: 22; Fuel System, Gasoline: 14; Fuel/Propulsion System: 6; Air Bags: 5; Electrical System: Instrument Cluster/Panel: 5; Exterior Lighting: 5; Vehicle Speed Control: 4; Air Bags:Side/Window: 3
Reported problems by failure mileage
Complaint counts in mileage bands. These are not failure rates per vehicle or mile.
| Category | Count |
|---|---|
| Under 25,000 | 4 |
| 25,000 to 49,999 | 5 |
| 50,000 to 74,999 | 18 |
| 75,000 to 99,999 | 16 |
| 100,000 to 149,999 | 11 |
| 150,000 and above | 1 |
Under 25,000: 4; 25,000 to 49,999: 5; 50,000 to 74,999: 18; 75,000 to 99,999: 16; 100,000 to 149,999: 11; 150,000 and above: 1
50,000 to 74,999 miles has the most reports with usable mileage (18). 9 complaints have missing, zero or invalid mileage.
Complaints over time
Year the complaint was filed, not the vehicle model year or incident year. The snapshot year is partial.
| Category | Count |
|---|---|
| 2005 | 1 |
| 2006 | 2 |
| 2007 | 2 |
| 2009 | 2 |
| 2010 | 10 |
| 2011 | 12 |
| 2012 | 11 |
| 2013 | 8 |
| 2014 | 7 |
| 2015 | 2 |
| 2016 | 3 |
| 2017 | 1 |
| 2018 | 2 |
| 2021 | 1 |
2005: 1; 2006: 2; 2007: 2; 2009: 2; 2010: 10; 2011: 12; 2012: 11; 2013: 8; 2014: 7; 2015: 2; 2016: 3; 2017: 1; 2018: 2; 2021: 1
Pattern summary
Electrical System leads the component reports. Electrical and battery issues appears in 7 complaint narratives. Fuel system concerns appears in 6 complaint narratives. Steering behavior appears in 5 complaint narratives. Use these patterns to inspect individual reports and prepare questions for a mechanic.
Calculated from recorded counts. An AI narrative has not been published for this selection.
Complaint evidence
Examples provide context, not a representative sample or a verified diagnosis.
Owner report 10206875 · 2007-10-25 (October 25, 2007)
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 I…
Owner-reported narrative. 14,836 miles reported. Look up ODI 10206875 at NHTSA ↗
Owner report 10313294 · 2010-02-23 (February 23, 2010)
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 [phone removed] EXT. 6555 ). A FIELD ADJUSTER CAME TO OUR HOME WHERE WE HAD THE VEHICLE TOWED, AND EXAMINED THE CAR F…
Owner-reported narrative. 90,000 miles reported. Look up ODI 10313294 at NHTSA ↗
Owner report 10342879 · 2010-07-13 (July 13, 2010)
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.
Owner-reported narrative. 80,000 miles reported. Look up ODI 10342879 at NHTSA ↗
Owner report 10342880 · 2010-07-13 (July 13, 2010)
2005 ISUZU ASCENDER GAS TANK WHEN FILLED REGISTER EMPTY. *TR
Owner-reported narrative. Look up ODI 10342880 at NHTSA ↗
Owner report 10173374 · 2006-11-13 (November 13, 2006)
WHILE DRIVING AT SLOW SPEEDS VEHICLE WILL CUT OFF. YOU LOSE STEERING AND BRAKES DO NOT WORK WELL. FIRST FAILURE WAS 3 WEEKS AFTER PURCHASE. VEHICLE WAS PURCHASED NEW. THREE DEALERSHIPS HAVE ATTEMPTED TO FIX TO NO AVAIL. MANUFACTURER WAS NOTIFIED TWICE WITH NO RESOLUTION. *NM
Owner-reported narrative. 1,239 miles reported. Look up ODI 10173374 at NHTSA ↗
Owner report 10408713 · 2011-06-23 (June 23, 2011)
TL* THE CONTACT OWNS A 2005 ISUZU ASCENDER. THE CONTACT STATED THAT WHILE THE BRAKES WERE DEPRESSED, THE ENGINE EXHIBITED AN UNUSUAL INCREASE IN RPMS OF UP TO 3,500. THE CONTACT SHIFTED INTO NEUTRAL YET THE FAILURE PERSISTED. THE CONTACT TURNED OFF THE VEHICLE AND WHEN RESTARTING, THE VEHICLE PROCEEDED AS NORMAL. IN ADDITION, THE FUEL LEVEL GAUGE WOULD PROVIDE ERRONEOUS FUEL LEVEL READINGS. NEITHER THE DEALER NOR THE MANUFACTURER WAS CONTACTED IN REGARDS TO THE FAILURE. THE FAILURE AND CURRENT MILEAGE WAS 85,000.
Owner-reported narrative. 85,000 miles reported. Look up ODI 10408713 at NHTSA ↗
Owner report 10143442 · 2005-11-22 (November 22, 2005)
DT: THE CONTACT STATES TWO ENGINE LIGHTS COME ON AND THE VEHICLE IMMEDIATELY LOST POWER, BUT DID NOT STALL. WHEN SHE TRIED TO DEPRESS THE ACCELERATOR PEDAL NOTHING HAPPENED. THE CONTACT PULLED THE VEHICLE OVER AND HAD IT TOWED TO THE DEALERSHIP. THIS HAPPENED FOUR SEPARATE TIMES. THE DEALERSHIP WAS UNABLE TO DIAGNOSE THE PROBLEM. THEY HAVE REPLACED THE THROTTLE BODY AND THE APPROPRIATE SENSOR. THE VEHICLE IS CURRENTLY AT THE DEALERSHIP FOR THIS PROBLEM. *AK
Owner-reported narrative. 333 miles reported. Look up ODI 10143442 at NHTSA ↗
Owner report 10427994 · 2011-09-30 (September 30, 2011)
MY GAS GAUGE HAS FAILED SEVERAL TIMES. IN FACT NOW IT DOES NOT WORK AT ALL. I RAN OUT OF GAS WHILE DRIVING DOWN THE EXPRESSWAY GOING 75 MILES PER HOUR WHILE GAUGE WAS STILL READING HALF FULL. I JUST RECENTLY LEARNED THAT GM WAS BEING INVESTIGATED FOR THE GAS GAUGES OF MY YEAR OF CAR. MY CAR WAS MADE BY GM AT THAT POINT. IT IS ESSENTIALLY A CHEVY TRAILBLAZER WITH AN ISUZU STICKER ON IT. I AM UNCERTAIN IF THERE IS A RECALL, OR IF ONE HAS BEEN ISSUED. I WILL SAY THAT THREE GIRLS IN MY OFFICE ALL HAVE SIMILAR SUVS WITH YEAR 2005, AND ALL OF …
Owner-reported narrative. Look up ODI 10427994 at NHTSA ↗