2003 Isuzu Ascender: Reliability Data

Source: NHTSA — 47 complaints
47
Total Complaints
30,740mi
Median Mileage
ELECTRICAL SYSTEM
Top Issue
2
Crash Reports

When Do Complaints Happen?

Distribution of NHTSA complaints by vehicle mileage at time of report.

9,125 25th Percentile
30,740 Median Mileage
50,000 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

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
SEATS:MID/REAR ASSEMBLY
1
STRUCTURE:BODY:DOOR
1
ENGINE AND ENGINE COOLING:ENGINE
1
ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR
1
ELECTRICAL SYSTEM:12V/24V/48V BATTERY
1

Severity Assessment

2
Crashes
0
Fires
3
Injuries
0
Deaths

Sample Complaint Reports

"WHEN THE HIGH BEAMS WERE NOT ON, THE CONSUMER WAS ONLY ABLE TO SEE TWO CAR LENGTHS AHEAD. *JB *TS. THE CONSUMER WAS TOLD THE HEADLAMPS WERE PRE-SET AND COULD NOT BE READJUSTED. *JB"
"THE DOOR ON THE VEHICLE WAS VERY LARGE, AND CAUSED A HUGE BLIND SPOT. *JB *TS *JB"
"THE 3RD ROLL BENCH SEAT COULD NOT BE REMOVED, THE HEADREST BLOCKED THE DRIVERS VISION. *JB THE 3RD ROW WAS ALSO RAISED HIGHER THAN THE FRONT AND SECOND ROW SEATS. ONE THIRD OF THE WINDOW WAS BLOCKED. *SCC *JB"

Source: NHTSA ODI Complaints Database. Names and identifying details omitted.

Data source: View this vehicle on NHTSA.gov | NHTSA ODI Complaints Database. Public domain.

Methodology: Complaint counts and mileage distributions are computed directly from consumer-reported NHTSA complaints. This data represents reported issues, not failure rates — vehicles without complaints are not represented. Full methodology.

Data through: 2026-03-28