Reliability, what owners report, and what it costs to keep.
AVOIR's read: the numbers are mixed and the complaint record is worth reading before you commit.
Owners have filed 64 complaints with NHTSA about the 2004 Isuzu Ascender, and it carries 1 recall. These are owner allegations rather than confirmed defects, but the pattern of what people complain about is the most useful signal a used buyer has.
| Area | Complaints | Share |
|---|---|---|
| Electrical system | 18 | 28% |
| Fuel system | 8 | 13% |
| Fuel/propulsion system | 4 | 6% |
| Seat belts | 3 | 5% |
| Exterior lighting | 2 | 3% |
| Engine | 2 | 3% |
| Electrical system | 2 | 3% |
| Electrical system | 2 | 3% |
| Visibility | 2 | 3% |
| Tires | 2 | 3% |
Verbatim from NHTSA complaint records, trimmed for length.
THE LOW BEAMS ON MY HEADLIGHTS WILL GO OUT WITHOUT WARNING WHILE DRIVING AT NIGHT. MY DAYTIME RUNNING LIGHTS ALSO WILL TURN OFF WITHOUT WARNING AND TURN BACK ON BUT THIS IS NOT AS MUCH OF A SAFETY ISSUE AS WHEN IT HAPPEN
NHTSA complaint: Exterior lighting
TL* THE CONTACT OWNS A 2004 ISUZU ASCENDER. WHILE DRIVING APPROXIMATELY 60 MPH, THE VEHICLE DECELERATED WITHOUT WARNING. THE FAILURE OCCURRED NUMEROUS TIMES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE IT WAS
NHTSA complaint: Engine
RECALL HAS BEEN ISSUED ON FAULTY GAS TANK. HAD CAR INSPECTED BY ISUZU FACILITY 2/4/16 AND NEW PART(S) ORDERED. CANNOT GET ANY INFORMATION AS TO WHEN PART WILL BE IN AND MY CAR REPAIRED. IN THE MEANTIME, DRIVING WITH FAU
NHTSA complaint: Fuel/propulsion system
WHILE DRIVING MY CARS BRAKELIGHT CAME ON AND THE CAR STARTED TO ACCELERATE FASTER AND FASTER. PULLLED OVER AS SOON AS I COULD AND STOPPED THE CAR AND TURNED THE ENGINE OFF. THE CHECK GAUGES WARNING LIGHT COMES ON EVEN WH
NHTSA complaint: Electrical system
FUEL TANK HAS LEAKING SEALS, WHICH IS CAUSING FUEL TO LEAK AND THE SMELL OF FUEL INTO CABIN AREA OF VEHICLE AND VEHICLE REJECTED DURING STATE INSPECTION. PART NOT AVAILABLE UNTIL AFTER MAY.TOOK IT TO REPAIR FACILITY, W
NHTSA complaint: Fuel/propulsion system
TL* THE CONTACT OWNS A 2004 ISUZU ASCENDER. AFTER STOPPING THE VEHICLE, THE CONTACT WAS UNABLE TO SHIFT GEARS AND THE IGNITION KEY FAILED TO REMOVE FROM THE IGNITION. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFA
NHTSA complaint: Power train
HAD AUTO TOWED TO MIDAS AFTER INABILITY TO START, ATTEMPTED JUMP START, UNSUCCESSFUL. BATTERY REPLACED ON 12/28/15. DROVE AUTO NEXT SEVERAL DAYS AND ON 12/30/15 DROVE TO PICK UP MY HUSBAND, SHUT OFF CAR IN PARK. UNABLE T
NHTSA complaint: Steering
CAR PAID IS PILLING OFF WE PAINT THIS CAR 3 TIMES AND A THOSES THE SAMETHING ALL CLEAR PAINT WHIT IN 3-5 MONTH START TO COME OFF CAN ANY BODY TELL ME IS GM HAD A RECAL FOR THIS
NHTSA complaint: Electrical system
NHTSA lists 1 recall campaign for the 2004 Isuzu Ascender. Recalls are free to have fixed at a franchised dealer regardless of who owns the car now, but only if they were never done, so check the VIN of the specific car rather than trusting the model.
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.
Risk: THE DRIVER MAY NOT BE ABLE TO CLEARLY SIGNAL THEIR INTENTIONS TO TURN, CHANGE TRAVEL LANES, OR POTENTIALLY WARN OTHERS OF AN IMPAIRED VEHICLE OPERATING CONDITION INCREASING THE RISK OF A CRASH.
Fix: 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 AUGUS
| Reliability raw | 77 | good |
|---|---|---|
| Longevity est. | 76 | good |
| Maintenance | 70 | good |
| Depreciation | 67 | good |
| Performance | 67 | good |
| Efficiency | 29 | below average |
Percentile ranks against other SUVs in the catalog.
What stands behind each score for this car:
Owners have filed 64 complaints with NHTSA for this model-year, and electrical system is the most reported area with 18 of them (28%). There is 1 recall on record. Check any specific car against its VIN before buying.
AVOIR scores its reliability 77/100 (good) from NHTSA recall campaigns and complaint density. That figure is a raw complaint count, not yet adjusted for sales volume, so a high-volume model scores worse than it deserves.
AVOIR scores its longevity 76/100, but that figure is an estimate built from the powertrain and the brand's record, not a measurement. A 2004 car has no 200,000-mile population to observe yet, so treat it as a prior rather than evidence.
AVOIR's read: be careful, because the numbers are mixed and the complaint record is worth reading before you commit. Its overall ownership score is 68/100. Condition, mileage and service history still matter more than any score, so get a pre-purchase inspection on the specific car.
Sources: NHTSA recalls and complaints, EPA fuel economy, IIHS awards, and live market listings. A score describes a model-year, not the individual car in front of you. Get a pre-purchase inspection.