Total Complaints
47 filings
ISUZU ASCENDER · model year
47 NHTSA complaints, 2 crash reports, and 5 active recalls for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2003ISUZUASCENDER carries 47 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 2 crashes, 0 fires, 3 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2003 ASCENDER is electrical system with 6 filings, followed by exterior lighting:headlights (5) and service brakes, hydraulic:antilock/traction control/electronic limited slip (2). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability. This model year has 5 active recall campaigns, which means the manufacturer is obligated to remedy the covered defect at no charge for the life of the vehicle — the full NHTSA campaign numbers are listed below.
NHTSA currently has 5 investigation files overlapping the 2003 ASCENDER. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
Total Complaints
47 filings
Crashes Reported
2 reports
Source
NHTSA ODI
Federal complaints database
At or below the fleet median complaint volume.
| Component | Count |
|---|---|
| ELECTRICAL SYSTEM | 6 |
| EXTERIOR LIGHTING:HEADLIGHTS | 5 |
| SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP | 2 |
| ELECTRICAL SYSTEM:IGNITION:SWITCH | 2 |
| FUEL SYSTEM, GASOLINE | 2 |
| STRUCTURE:BODY:DOOR | 1 |
| SEATS:MID/REAR ASSEMBLY | 1 |
| VISIBILITY:GLASS, SIDE/REAR | 1 |
| ENGINE AND ENGINE COOLING:ENGINE | 1 |
| ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR | 1 |
| ELECTRICAL SYSTEM:12V/24V/48V BATTERY | 1 |
| POWER TRAIN:AXLE ASSEMBLY | 1 |
| POWER TRAIN:DRIVELINE | 1 |
| SEAT BELTS:FRONT:BUCKLE ASSEMBLY | 1 |
| STEERING:HYDRAULIC POWER ASSIST:PUMP | 1 |
LATCHES/LOCKS/LINKAGES:DOORS:LATCH
CERTAIN SPORT UTILITY VEHICLES HAVE A REAR SIDE CLOSURE LATCH THAT MAY NOT LATCH OR UNLATCH DUE TO CORROSION CAUSED BY ROAD SPLASH, SUCH AS WATER AND ROAD SALT. THESE VEHICLES WERE ORIGINALLY SOLD IN OR CURRENTLY REGISTERED IN THE FOLLOWING STATES: CONNECTICUT, DELAWARE, ILLINOIS, INDIANA, IOWA, M
EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL
CERTAIN SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 225, "CHILD RESTRAINT ANCHORAGE SYSTEM." THE OWNER'S MANUAL DOES NOT EXPLAIN THE MEANING OF THE LOCATION SYMBOLS FOR THE LOWER UNIVERSAL ANCHORAGE SYSTEM.
POWER TRAIN:AUTOMATIC TRANSMISSION
CERTAIN SPORT UTILITY VEHICLES FAIL TO COMPLY WITH THE REQUIREMENTS OF FEDERAL MOTOR VEHICLE SAFETY STANDARD NO. 114, "THEFT PROTECTION." THESE VEHICLES ARE EQUIPPED WITH A MECHANICAL OVERRIDE THAT COULD ALLOW THE IGNITION KEY TO BE REMOVED WITH THE SHIFT LEVER IN A POSITION OTHER THAN PARK. IN AD
EXTERIOR LIGHTING:TURN SIGNAL
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.
VISIBILITY:WINDSHIELD WIPER/WASHER
CERTAIN SPORT UTILITY VEHICLES HAVE WINDSHIELD WIPER SYSTEMS THAT WILL NOT TURN ON, CEASE OPERATION WHILE IN USE, FAIL TO TURN OFF/ON BY THEMSELVES (MOISTURE SENSITIVE WIPER SYSTEM), OR HAVE CONTINUOUS WINDSHIELD WASHER PUMP OPERATION BECAUSE THE PRESENCE OF WATER WITHIN THE WIPER MODULES CAN EITHER
TL* THE CONTACT OWNS A 2003 ISUZU ASCENDER. THE CONTACT STATED THAT UPON INSPECTION, IT WAS FOUND THAT THE BRAKE LINE WAS PERFORATED DUE TO RUST. THE VEHICLE WAS TAKEN TO A PRIVATE MECHANIC WHERE THE FAILURE WAS CONFIRMED. THE VEHICLE WAS BEING REPAIRED. THE MANUFACTURER WAS CONTACTED AND INFORMED THE CONTACT THAT THE VEHICLE WAS NOT INCLUDED IN THE MANUFACTURER'S RECALL. THE FAILURE MILEAGE WAS 102,000.
Mileage: 102,000
SERVICE BULLETIN OR RECALL 2003 ISUZU ASCENDER. PROBLEM KEY STUCK IN THE IGNITION CAN NOT REMOVE SEEMS TO BE NORMAL PROBLEM FOR THIS MAKE AND MODEL . L HAVE BEEN READING THROUGH FORUM COMPLAINTS ON THE INTERNET. I AM CURIOUS IF THERE HAS BEEN A RECALL AND IF NOT WHY NOT. CAR COULD BE CAR JACK OR STOLEN BY NOT ABLE TO REMOVE THE KEY FROM THE IGNITION. THIS HAS BEEN A INTERMITTENT PROBLEM. *TR
Mileage: 76,000
POWER STEERING LINES FROM THE PUMP (HIGH PRESSURE AND RETURN LINES) ARE CORRODING AND NOW LEAKING. *TR
Mileage: 80,000
TL* THE CONTACT OWNS A 2003 ISUZU ASCENDER. HE STATED THAT INTERMITTENTLY WHILE DRIVING 50 MPH THE "SES" AND "CHECK ENGINE" WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL, THEN THE VEHICLE STALLED. AS A CONSEQUENCE, THE RISK FOR A VEHICLE CRASH WAS INCREASED. THE VEHICLE WAS TOWED TO A DEALER AND REPAIRED TEN TIMES; HOWEVER, THE REPAIRS HAVE NOT REMEDIED THE FAILURE. THE VEHICLE IDENTIFICATION NUMBER WAS UNAVAILABLE. THE FAILURE AND CURRENT MILEAGES WERE UNKNOWN.
HEATER/AC FAN KEPT GOING OUT. WAS TOLD IT WAS RELAY SWITCH. AFTER SEVERAL REPLACEMENTS, WAS TOLD IT WAS A FAULT IN THE IGNITION. IGNITION WAS REPLACED. FAN NOW WORKS. NOW HEADLIGHTS GO OUT INTERMITTENTLY. TECH'S CAN'T FIGURE OUT WHY. *TR
HEATER/AC FAN KEPT GOING OUT. WAS TOLD IT WAS RELAY SWITCH. AFTER SEVERAL REPLACEMENTS, WAS TOLD IT WAS A FAULT IN THE IGNITION. IGNITION WAS REPLACED. FAN NOW WORKS. NOW HEADLIGHTS GO OUT INTERMITTENTLY. TECH'S CAN'T FIGURE OUT WHY. *TR
WHILE TRYING TO RELEASE THE FULL-SIZED SPARE TIRE, THE CABLE HOLDING IT UP BROKE CAUSING THE TIRE TO UNEXPECTEDLY FALL. *TR
WHILE TRYING TO RELEASE THE FULL-SIZED SPARE TIRE, THE CABLE HOLDING IT UP BROKE CAUSING THE TIRE TO UNEXPECTEDLY FALL. *TR
WHEN YOU GO TO PUT GEAR SELECTOR INTO PARK THE IGNITION KEY GETS STUCK TEMPORARILY ON MY ISUZU ASCENDER 2003 . SOMETIMES I HAVE TO WAIT 1 MIN OR SOMETIMES 10 MIN. TO GET THE KEY OUT .IF YOU LISTEN REAL CLOSE YOU CAN HERE A ELECTRONIC CLICK .THIS JUST STARTED ABOUT 2 MONTHS AGO. I AM WORRIED ABOUT LEAVING THE VEHICLE WITH THE KEY IN THE IGNITION. IT COULD BE STOLEN OR EVEN CAR JACK. *TR
Mileage: 43,000
SMELL OF GASOLINE AND DRIPPING UNDERNEATH REAR BENEATH FUEL TANK (DRIVER'S SIDE), WHEN STARTING. PROBLEM WAS FOUND TO BE THE FUEL PUMP MODULE AT THE LINE :OUTPUT SIDE OF PUMP. REPLACED FUEL PUMP MODULE AND RING. PARTS AND PICS AVAILABLE. *TR
Mileage: 55,371
GAS ODOR AND GASOLINE DRIPPING BENEATH FUEL TANK WHEN PARKED. *TR
Mileage: 50,000
REAR PASSENGER DOORS WILL NOT LATCH CLOSE. REMOVED AND REPLACED BOTH RUSTY LATCHES. *TR
Mileage: 50,000
AT NIGHT WHILE DRIVING THE LOW BEAMS HEADLIGHTS TURN OFF AND AFTER A FEW MINUTES TURN BACK ON. THE HIGH BEAMS WORK WHEN THE LIGHTS GO OUT AND WE HAVE TO TURN THEM ON TO HAVE HEADLAMPS. THE DAYTIME RUNNING LIGHTS DON'T SEEM TO BE AFFECTED BY THE PROBLEM DURING THE DAY. PROBLEM HAPPENS ONLY AT NIGHT. *TR
Mileage: 48,000
I WAS DRIVING ON 1-88W BOUND ON 2-1-2008, MY CAR STARTED TO MAKE SQUEAKING NOISE AND VERY HARD TO DRIVE. LUCKILY, 2 BLOCKS FROM RT 31 EXIT, THERE WAS A FIRESTONE AUTO CARE, THE MECHANIC WAS ABLE TO DETERMINED THAT THE FRONT AXEL BROKE AND IT IS AFFECTING THE DIFFERENTIAL. THE CAR WAS THEN TOWED TO ISUZU DEALER IN ELGIN THE NEXT DAY.THE MECHANIC FROM BIGGER ISUZU CALLED MONDAY, 2-5-07, CLAIMING THAT THE FRONT DIFFERENTIAL NEED TO BE REPLACED BECAUSE OF LACK OF GEAR OIL. COST--$4,800 TO BE REPAIRED. THE CAR MILEAGE WAS 77,000 MILES. I CALLED ISUZU TO COMPLAINED AND THEY SAID, THEY WON'T BE RESPONSIBLE FOR THE REPAIR. I WENT TO NHTSA, THERE WAS A TECHNICAL SERVICE BULLETIN REGARDING 2003 ISUZU ASCENDER POWER TRAIN-DRIVE DIFFERENTIAL. NHTSA ITEM #10016589 AND SERVICE BULLETIN #0507002. DATE OF BULLETIN 08/01/2005. *TR
WHILE DRIVING AT NIGHT THE DIM HEAD LIGHTS GO OFF FOR NO REASON,THIS HAPPENS EVERY TWO DAYS OR SO , SO I HAVE TO DRIVE WITH BRIGHT LIGHTS (WHICH BLINDS ON COMING TRAFFIC) ON FOR ABOUT SIX OR SEVEN MILES BEFORE THE LOW BEAMS START WORKING AGAIN. DEALERSHIP CAN'T SEEM TO DUPLICATE PROBLEM, SO NOTHING HAS BEEN DONE YET. *TR
Mileage: 50,000
TL*THE CONTACT OWNS A 2003 ISUZU ASCENDER. THE CONTACT STATED THAT THE PASSENGER SIDE TAIL LIGHT WORKED INTERMITTENTLY. THE MANUFACTURER STATED THAT HIS VIN WAS NOT INCLUDED IN NHTSA RECALL # 05V198000 (EXTERIOR LIGHTING:TURN SIGNAL). THE CURRENT MILEAGE WAS 59,000 AND FAILURE MILEAGE WAS 49,000.
Mileage: 49,000
I PURCHASED A NEW 2003 ISUZU ASCENDER IN SEPT. 2003. WHEN THE VEHICLE HAD APPROXIMATELY 500 MILES ON THE ODOMETER THE SERVICE ENGINE SOON (SES) LIGHT CAME ON. WE TOOK THE SUV TO AN ISUZU DEALER WHERE I WAS TOLD THAT I HAD IMPROPERLY PUT THE GAS CAP ON AND THAT IS WHY THE SES LIGHT CAME ON. WITHIN A WEEK THE SES LIGHT CAME ON AGAIN. MY HUSBAND TOOK THE CAR BACK TO THE DEALER WHERE THE VEHICLE WAS THOROUGHLY CHECKED AND THE ISUZU DEALER FOUND A LEAK IN THE FUEL TANK. THE TANK WAS REPLACED AFTER A LENGTHY WAIT FOR THE PROPER PARTS. WE THOUGHT THE PROBLEM WAS SOLVED. JULY 2, 2007 WE RECEIVED A RECALL NOTICE FROM ISUZU STATING THAT THE SES LIGHT MAY COME ON AFTER FUELING AND THAT YOU MAY SMELL A FUEL ODOR. WE BROUGHT THE SUV TO AN ISUZU DEALER ON JULY 5. THE SERVICE STAFF FOUND 2 LEAKS IN THE TANK. IT IS NOW JULY 13, 2007 AND THE CAR IS STILL AT THE DEALERSHIP BECAUSE THEY ARE UNABLE TO GET A TANK FOR THE SUV. THE DEALERSHIP WILL NOT ALLOW US TO DRIVE THE SUV OFF THE LOT BECAUSE OF
Mileage: 30,000
I PURCHASED A NEW 2003 ISUZU ASCENDER IN SEPT. 2003. WHEN THE VEHICLE HAD APPROXIMATELY 500 MILES ON THE ODOMETER THE SERVICE ENGINE SOON (SES) LIGHT CAME ON. WE TOOK THE SUV TO AN ISUZU DEALER WHERE I WAS TOLD THAT I HAD IMPROPERLY PUT THE GAS CAP ON AND THAT IS WHY THE SES LIGHT CAME ON. WITHIN A WEEK THE SES LIGHT CAME ON AGAIN. MY HUSBAND TOOK THE CAR BACK TO THE DEALER WHERE THE VEHICLE WAS THOROUGHLY CHECKED AND THE ISUZU DEALER FOUND A LEAK IN THE FUEL TANK. THE TANK WAS REPLACED AFTER A LENGTHY WAIT FOR THE PROPER PARTS. WE THOUGHT THE PROBLEM WAS SOLVED. JULY 2, 2007 WE RECEIVED A RECALL NOTICE FROM ISUZU STATING THAT THE SES LIGHT MAY COME ON AFTER FUELING AND THAT YOU MAY SMELL A FUEL ODOR. WE BROUGHT THE SUV TO AN ISUZU DEALER ON JULY 5. THE SERVICE STAFF FOUND 2 LEAKS IN THE TANK. IT IS NOW JULY 13, 2007 AND THE CAR IS STILL AT THE DEALERSHIP BECAUSE THEY ARE UNABLE TO GET A TANK FOR THE SUV. THE DEALERSHIP WILL NOT ALLOW US TO DRIVE THE SUV OFF THE LOT BECAUSE OF
Mileage: 30,000
THE 2003 ISUZU ASCENDER IS THE SAME VEHICLE AS A CHEVROLET TRAILBLAZER AND GMC ENVOY. AT APPROXIMATELY 51,000 MILES AND OUT OF WARRANTY. THE FAN CLUTCH MOTOR HAD TO BE REPLACED. I HAD TO ASSUME FULL PAYMENT TO REPLACE IT. NOW, THE TRUCK SOUNDED LIKE THE UNDERCARRIAGEWAS RATTLING. HAD IT TO A MECHANIC, AND THE MECHANIC STATED THAT I MUST HAVE BEEN THE SWAY BAR LINKS REPLACED IN THE VEHICLE. UPON FURTHER DISCUSSION THE MECHANIC DETERMINE D THAT HE HAD TO REPLACE THEM ON THE TRAILBLAZER , AND THE SERVICE MANAGER HAD TO HAVE THEM REPLACED ON THE ENVOY, BOTH WITH THE SAME PLATFORM. THIS SEEMED TO BE A DESIGN PROBLEM THAT GM AND ITS AFFILIATES SHOULD BE RESPONSIBLE FOR REPLACING. *AK
THE 2003 ISUZU ASCENDER IS THE SAME VEHICLE AS A CHEVROLET TRAILBLAZER AND GMC ENVOY. AT APPROXIMATELY 51,000 MILES AND OUT OF WARRANTY. THE FAN CLUTCH MOTOR HAD TO BE REPLACED. I HAD TO ASSUME FULL PAYMENT TO REPLACE IT. NOW, THE TRUCK SOUNDED LIKE THE UNDERCARRIAGEWAS RATTLING. HAD IT TO A MECHANIC, AND THE MECHANIC STATED THAT I MUST HAVE BEEN THE SWAY BAR LINKS REPLACED IN THE VEHICLE. UPON FURTHER DISCUSSION THE MECHANIC DETERMINE D THAT HE HAD TO REPLACE THEM ON THE TRAILBLAZER , AND THE SERVICE MANAGER HAD TO HAVE THEM REPLACED ON THE ENVOY, BOTH WITH THE SAME PLATFORM. THIS SEEMED TO BE A DESIGN PROBLEM THAT GM AND ITS AFFILIATES SHOULD BE RESPONSIBLE FOR REPLACING. *AK
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.