"How reliable is the 2004 Isuzu Ascender?"

"Based on 88 NHTSA complaints, the 2004 Isuzu Ascender has a median complaint mileage of 80000 miles. The most common issue is ELECTRICAL SYSTEM."

"What are common problems with the 2004 Isuzu Ascender?"

"The most frequently reported component in NHTSA complaints for the 2004 Isuzu Ascender is ELECTRICAL SYSTEM, accounting for a significant portion of the 88 total complaints filed."

2004 Isuzu Ascender: Reliability Data

Source: NHTSA — 88 complaints

Total Complaints

80,000mi

Median Mileage

ELECTRICAL SYSTEM

Top Issue

Crash Reports

When Do Complaints Happen?

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

35,000 25th Percentile

80,000 Median Mileage

129,998 75th Percentile

What Fails?

Most reported component issues from NHTSA complaints.

ELECTRICAL SYSTEM

ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

FUEL SYSTEM, GASOLINE

FUEL/PROPULSION SYSTEM

EXTERIOR LIGHTING

ENGINE

POWER TRAIN

SEAT BELTS:FRONT

TIRES

ELECTRICAL SYSTEM:IGNITION

Severity Assessment

Crashes

Fires

Injuries

Deaths

Sample Complaint Reports

"CONCERNS REGARDING VEHICLE SEATBELTS.*MR THE DESIGN OF THE VEHICLE'S SEAT BELTS ARE INADEQUATE FOR SHORT OR SMALL PEOPLE. THE SHOULDER BELT CUTS ACROSS THE NECK INSTEAD OF THE SHOULDER WHICH IS A CONCERN FOR THE CONSUMER.*MR"

"I HAVE A CONCERN ON MY NEW 2004 ISUZU ASCESDER SEAT BELTS. MY WIFE IS 5'4" TALL, AND THE SEAT BELT BOTH DRIVER AND PASSAGERS SLIDES UP AROUND HER NECK AND RIGHT UNDERARM. CAN NOT KEEP THE SEAT BELTS IS PLACE. NO ADJUSTMENT FOR SEAT BELTS FOR HEIGHT. IT IS ATTACHED TO THE BACK OF THE SEATS. THE ..."

"TIRES ARE OF POOR QAULITY, FREQUENTLY NEEDS TO BE FORCE BALANCED.*AK"

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