What is the worst year for a Isuzu Ascender?

The 2006 Isuzu Ascender has the worst FaultScore of any year of this model, with 49 complaints filed with NHTSA, most of them about the fuel & propulsion.

What is the best year for a Isuzu Ascender?

The 2007 Isuzu Ascender has the cleanest record of the graded years, with 13 complaints on file.

What breaks most often on a Isuzu Ascender?

Electrical System accounts for more complaints than any other part on the Isuzu Ascender.

Worst years for a Isuzu Ascender

Owners have filed 281 complaints about the Isuzu Ascender with NHTSA across model years 2003 to 2007. More of them are about the electrical system than anything else.

Avoid

2006 Isuzu Ascender

49 complaints — the highest FaultScore of any year, mostly fuel & propulsion.

Cleanest on record

2007 Isuzu Ascender

13 complaints — the lowest FaultScore of the graded years.

Every Isuzu Ascender year, graded

The grade compares each year against the rest of this model's own run — never against another car. Click any bar or row to open that year's report.

47 88 84 49 13

03 04 05 06 07

Complaints filed with NHTSA, by model year. Bar colour is the FaultScore grade: A B C D F ungraded

Year	Grade	Complaints	Crashes	Fires	Median miles	Most reported
2007	A	13	0	0	42,000	Fuel & Propulsion
2006	C	49	3	3	78,500	Fuel & Propulsion
2005	C	84	4	1	80,000	Electrical System
2004	C	88	0	4	80,000	Electrical System
2003	C	47	2	0	30,740	Electrical System

What breaks on a Isuzu Ascender

Across every model year on file. Follow a row for that part's complaints and the year it was worst.

Electrical System 86 30.6%

Worst in 2004

Fuel & Propulsion 68 24.2%

Worst in 2005

Lights 23 8.2%

Worst in 2003

Engine & Cooling 15 5.3%

Worst in 2004

Windows, Mirrors & Wipers 13 4.6%

Worst in 2006

Transmission & Drivetrain 12 4.3%

Worst in 2003

Airbags 12 4.3%

Worst in 2005

Brakes 7 2.5%

Worst in 2003

Steering 6 2.1%

Worst in 2003

Body & Structure 6 2.1%

Worst in 2003

Acceleration & Cruise Control 5 1.8%

Worst in 2005

Tires 5 1.8%

Worst in 2004

Seat Belts 5 1.8%

Worst in 2004

Stability & Traction Control 4 1.4%

Worst in 2006

Complaints filed over time

Every complaint about every Isuzu Ascender, by the month it reached NHTSA.

Mar 2003 peak 8 Feb 2026

Compare the Isuzu Ascender

Side by side on complaint history. Remember that raw totals track how many were sold as much as how good they were.

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