Reliability & cost of ownership
Chevrolet Trailblazer Ext Reliability & Common Problems
How reliable is the Chevrolet Trailblazer Ext? Compare every model year side by side — NHTSA recalls, owner complaints, and crash-test stars — then open the year you're shopping for a full reliability and repair-cost forecast.
Chevrolet Trailblazer Ext problems by model year
13 recall entries and 863 owner complaints on file across 4 model years, sourced from the federal NHTSA database.
| Year | Recalls | Complaints | NCAP stars | Full report |
|---|---|---|---|---|
| 2006 Trailblazer Ext | 6 | 189 | No NCAP test | Reliability forecast → |
| 2004 Trailblazer Ext | 1 | 261 | No NCAP test | Reliability forecast → |
| 2003 Trailblazer Ext | 3 | 313 | No NCAP test | Reliability forecast → |
| 2002 Trailblazer Ext | 3 | 100 | No NCAP test | Reliability forecast → |
Most-complained-about components
Owner complaints filed with NHTSA against the Chevrolet Trailblazer Ext, grouped by the component each complaint names — the fastest read on where this model gives trouble.
- electrical system277 complaints
- fuel system268 complaints
- gasoline234 complaints
- power train92 complaints
- exterior lighting57 complaints
- engine and engine cooling50 complaints
- visibility49 complaints
- structure41 complaints