Chevrolet Trailblazer Ext electrical system problems by year
277 NHTSA owner complaints name the electrical system across 4 Trailblazer Ext model years. The most reported year is 2004 with 145 reports.
| Year | Electrical System reports | Share | Median mileage | |
|---|---|---|---|---|
| 2006 Trailblazer Ext | 41 | 22% | 71,715 mi | |
| 2004 Trailblazer Ext | 145 | 56% | 62,790 mi | |
| 2003 Trailblazer Ext | 77 | 25% | 85,000 mi | |
| 2002 Trailblazer Ext | 14 | 14% | 64,000 mi |
Share is the fraction of that year’s complaints naming the electrical system. Raw counts are not adjusted for sales volume — years that sold more units naturally accumulate more reports.