Chevrolet Trailblazer EXT
2003 only
2003 Chevrolet Trailblazer EXT have 121 classified complaints on record for that year specifically. The most common issue in this year is Body control and other modules, typically surfacing around 106,500 miles.
Computed directly from stored federal records for 2003 model years only — not blended with the rest of this vehicle's production run. See the full Chevrolet Trailblazer EXT report for every year combined.
Where this year fits
What breaks, and when — 2003 only
Median onset: 106,500 miles.
Median onset: 130,000 miles.
Median onset: 139,500 miles.
Tends to show up later than this model's other issues.
Median onset: 89,500 miles.
Median onset: 69,500 miles. 20.0% of these reported an injury, a death, or a crash with fire.
Tends to show up earlier than this model's other issues.
Median onset: 105,300 miles.
Typical repair: $150–$460 nationally.
Onset mileage not consistently reported.
Median onset: 107,914 miles.
Typical repair: $2,910–$5,410 nationally.
Which other vehicles have automatic transmission problems? →From owner-filed complaints to NHTSA, not independently verified. Federal mileage reporting on recent complaints is sparse — see how it works. Cost ranges are national estimates from book labor hours and parts pricing, not this vehicle's actual repair history — they don't account for your location or shop type.
Cost estimator: what will this one cost you?
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Sources: NHTSA Office of Defects Investigation — complaints and recalls, scoped to 2003 model year. See the full Chevrolet Trailblazer EXT report for every year and full specs/safety data.