2006 Chevrolet Trailblazer EXT 370 Electrical system Problems
- Complaints
- 5about this part
- Share
- 31%of 16 total for the year
- Median mileage
- 71,800miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 5 complaints about the electrical system of the 2006 Chevrolet Trailblazer EXT 370, 31% of the 16 complaints for this model year. Where a mileage was given, the median is 71,800 miles. 1 a fire, according to the filers.
Fewer than 15 complaints name this part, so treat the figures as a rough indication only.
Example complaints
Selected from NHTSA records; personal details are removed. They are consumer reports, not findings.
“I was driving on the and right in the middle of traffic and the car just shut off . I try to restart and it start up when I try to proceed it shut off and would not start back up at all.”
NHTSA complaint #10969532, filed 2017-03, 35 miles“The contact owns a 2006 Chevrolet TRAILBLAZER EXT 370. While the vehicle was stopped at a red light, the headlights failed to illuminate. The failure recurred twice. The vehicle was taken to an independent mechanic where it was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 126,000.”
NHTSA complaint #10794560, filed 2015-11, 126,000 miles“The contact owns a 2006 Chevrolet TRAILBLAZER EXT 370. While operating the vehicle, the fuel gauge would erroneously indicate that the fuel tank was empty. After restarting the vehicle, the fuel gauge would provide an accurate fuel reading before displaying empty again. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 71,800.”
NHTSA complaint #10767289, filed 2015-09, 71,800 miles“The contact owns a 2005 Chevrolet trailblazer. The contact noticed that the instrument panel including the speedometer, fuel gauge and oil pressure were inoperable, causing them to fluctuate and not remain at a constant point. The contact was unable to determine what speed he was traveling, how much fuel was in the vehicle, or how much oil was currently in the vehicle. Also the rear blower motor was inoperable. The dealer was notified who informed the contact that the vehicle was no longer under warranty. …”
NHTSA complaint #10380016, filed 2011-02, 50,000 milesRelated service bulletins
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Electrical system: other model years
Other parts of the 2006 Chevrolet Trailblazer EXT 370
4 complaintsFuel system
3 complaintsElectronic stability control
2 complaintsEngine
2 complaintsVisibility (wipers, defrost, mirrors)
2 complaintsEngine cooling
1 complaintsBody and structure
1 complaintsSuspension
1 complaints
← All problems reported for the 2006 Chevrolet Trailblazer EXT 370
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 31, 2026. Complaints are unverified consumer reports and may be duplicated or inaccurate.
To check a specific vehicle for open recalls, use its VIN at nhtsa.gov/recalls. Methodology