Chevrolet Trailblazer reliability: common problems by model year

Across 5 model years, the Chevrolet Trailblazer has 8,038 owner-filed NHTSA complaints and 24 recalls on record. The most-reported areas are electrical system and fuel system. 2004 drew the most complaints (2,725), 2001 the fewest (20).

Source: NHTSA complaints and recalls filed for Chevrolet Trailblazer vehicles (US, public record). Typical used asking price $22,656–$24,745.

Which Trailblazer years have the most problems?

Complaint volume by model year. Raw NHTSA totals, not adjusted for sales volume or time on the road, so older and higher-selling years accumulate more. Every year links to its full breakdown.

Highest: 2004 (2,725 complaints). Lowest: 2001 (20).

Where owners report problems

What owners say

Sentiment is mixed and varies significantly by generation. For the older GMT360 platform (circa 2002-2009), long-term owner reports describe a vehicle that is "a bit thirsty" and prone to numerous small, persistent electrical and component failures, though the

• For GMT360 Generation (2002-2009):
• Persistent electrical failures: door locks, windows, interior lights, and rear wiper/license plate light circuits failing due to faulty, dealer-only control modules that require programming. Frequency: recurrent.
• Poor interior material quality: widely criticized as low-grade and prone to failure. Frequency: recurrent.
• General component reliability: various small parts "always be breaking here and there." Frequency: recurrent.
• High fuel consumption: described as "a bit thirsty." Frequency: recurrent.

Owner insights cover all generations of the Trailblazer. Individual model years are broken down above.