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Worst years for a Chevrolet Trailblazer EXT 370

Owners have filed 370 complaints about the Chevrolet Trailblazer EXT 370 with NHTSA across model years 2002 to 2006. More of them are about the electrical system than anything else.

Avoid

2005 Chevrolet Trailblazer EXT 370

300 complaints — the highest FaultScore of any year, mostly electrical system.

Cleanest on record

2003 Chevrolet Trailblazer EXT 370

19 complaints — the lowest FaultScore of the graded years.

Every Chevrolet Trailblazer EXT 370 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.

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
2006 B 21 0 3 100,000 Electrical System
2005 D 300 14 1 70,000 Electrical System
2004 A 20 1 0 111,000 Electrical System
2003 A 19 0 0 145,000 Electrical System
2002 B 10 3 3 120,000 Electrical System

What breaks on a Chevrolet Trailblazer EXT 370

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

Electrical System 122 33.0%

Worst in 2005

Fuel & Propulsion 109 29.5%

Worst in 2005

Lights 27 7.3%

Worst in 2005

Engine & Cooling 22 5.9%

Worst in 2005

Windows, Mirrors & Wipers 18 4.9%

Worst in 2005

Airbags 8 2.2%

Worst in 2005

Body & Structure 8 2.2%

Worst in 2005

Acceleration & Cruise Control 8 2.2%

Worst in 2005

Tires 7 1.9%

Worst in 2005

Transmission & Drivetrain 6 1.6%

Worst in 2005

Other & Unspecified 6 1.6%

Worst in 2005

Steering 4 1.1%

Worst in 2005

Brakes 4 1.1%

Worst in 2005

Seats 4 1.1%

Worst in 2005

Exactly what failed on a Chevrolet Trailblazer EXT 370

The named sub-assemblies behind those complaints, across every model year.

Instrument Cluster/Panel 33 55.9%
Exhaust System 4 6.8%
Automatic Transmission 4 6.8%
Fuel Gauge System 3 5.1%
Brake Lights 3 5.1%
Body 3 5.1%
Power Window Devices AND Controls 3 5.1%
Accelerator Pedal 2 3.4%
Fan/Motor 2 3.4%
Tread/Belt 2 3.4%

Complaints filed over time

Every complaint about every Chevrolet Trailblazer EXT 370, by the month it reached NHTSA.

Feb 2005 peak 14 Dec 2019

Compare the Chevrolet Trailblazer EXT 370

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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