2006 Chevrolet Trailblazer EXT 370 Engine Problems
- Complaints
- 2about this part
- Share
- 13%of 16 total for the year
- Median mileage
- 111,881miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 2 complaints about the engine of the 2006 Chevrolet Trailblazer EXT 370, 13% of the 16 complaints for this model year. Where a mileage was given, the median is 111,881 miles.
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.
“The contact owns a 2006 Chevrolet TRAILBLAZER EXT 370. The contact stated that NHTSA campaign number: 14v755000 (exterior lighting) exceeded a reasonable amount of time for repair. The dealer stated that parts were unavailable for the repair. The manufacturer was made aware of the delay and stated that the remedy was not available. The vehicle was not repaired. The contact did not experience a failure related to the recall; however, the check engine warning light illuminated. The failure mileage was 110,000.”
NHTSA complaint #10778189, filed 2015-09, 110,000 miles“The contact owns a 2006 Chevrolet TRAILBLAZER EXT 370. While driving at various speeds and while idling, the fuel gauge fluctuated from empty to full continuously and the check engine warning indicator illuminated. The failure recurred numerous times. The vehicle was taken to a dealer. The technician diagnosed that the fuel level sensor failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was 113,762. Updated 4/16/15 updated 9/29/2017”
NHTSA complaint #10700750, filed 2015-03, 113,762 milesRelated service bulletins
- 11007091Aug 5, 2024This service bulletin provides guidelines and diagnostic/repair information to technicians regarding vehicle engine oil consumption.
- 11004761Jun 28, 2024This service bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or…
- 10211658May 2, 2022This service bulletin provides policy information on warranty administration guidelines for multiple repairs with independent causes (GM Canada Dealers Only).
- 10082869Aug 29, 2016This informational bulletin provides additional information on how to install pistons and suggest what tools to use.
- 10082822Aug 12, 2016This informational bulletin provides information on how to test a battery and what is needed to warranty a battery.
- 10082814Aug 2, 2016This informational bulletin provides information to gm dealers on the correct cleaning methods when cleaning engine gasket sealing surfaces.
- 10082820Aug 1, 2016This informational bulletins provides information on the intake manifold inspection/replacement after servere internal engine damage.
- 10201098Dec 1, 2015OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
- 10190503Dec 1, 2015OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
Engine: other model years
Other parts of the 2006 Chevrolet Trailblazer EXT 370
5 complaintsExterior lighting
4 complaintsFuel system
3 complaintsElectronic stability control
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 29, 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