2005 Chevrolet Trailblazer EXT 370 Body and structure Problems
- Complaints
- 6about this part
- Share
- 3%of 237 total for the year
- Median mileage
- 38,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 6 complaints about the body and structure of the 2005 Chevrolet Trailblazer EXT 370, 3% of the 237 complaints for this model year. Where a mileage was given, the median is 38,500 miles. 1 of these say a crash was involved, 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.
“2005 ext trailblazer rear plastic molding containing the 3rd brakelight separated from the window at least 3x since I have owned this vehicle. Once even falling completely off severing the wires and landing in the roadway. I noticed the first separation less than 6 months after getting vehicle brand new. It has separated again and dealer says that it is not covered under warranty because it is considered cosmetic even though the vehicle was still under lease for another year. …”
NHTSA complaint #10274028, filed 2009-06, 4,000 miles“The rear liftgate window of my 2005 Chevrolet trailblazer ext shattered for no apparent reason at all. My wife was closing the liftgate (the glass was not open), pulled the liftgate down a few inches, and the entire rear liftgate window exploded sending glass all over my wife and our 4 year old son, not to mention my driveway, sidewalk, etc. According to different sites that I have visited on the internet, this is quite a common occurrence. Might I add that this vehicle had not been driven or moved from its' parking spot since sunday 8/24/2008 and was not driven today. …”
NHTSA complaint #10240142, filed 2008-08, 55,000 miles“While driving on highway on way to work, the third brake light assembly above the rear hatch flew off into the highway. I stopped and picked the part up and have it however I'm left with a broken truck. The brackets on the truck that the assembly place snaps into is broken and when the assembly piece flew off the truck the third brake light wire was snapped into by the force of the wind.”
NHTSA complaint #10496950, filed 2013-02“While driving on the highway, the rear brake light accessory fell off my 2005 Chevrolet trailblazer ext. While the vehicle was in motion. There was no prior indication that the piece was loose. The piece, fortunately, remained attached to the vehicle while slamming against my rear window. I am concerned that the manufacturer of this vehicle is not properly securing the rear brake light piece and endangering my family as well as other motorists. …”
NHTSA complaint #10215139, filed 2008-01Related service bulletins
- 10078604Apr 5, 2016This preliminary information communication advises the technician the steps on diagnosing the concern. Vehicle's sunroof operation intermittent, bind, noise, auto-reverse, and/or…
- 10190934Jan 1, 2014Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more…
- 10190933Jan 1, 2014Underbody Component Corrosion The following information may be helpful when addressing underbody component corrosion with customers. Some customers may comment that one or more…
- 10084683Oct 15, 2012This preliminary informational bulletin provides a procedure for relearning the power folding mirriors and road testin to verify they correct a condtion of the power folding…
- 10037570Apr 1, 2012Gm: on some truck models there is some frame corrosion. *rm updated on 5/2/2012.
Body and structure: other model years
Other parts of the 2005 Chevrolet Trailblazer EXT 370
101 complaintsFuel system
94 complaintsExterior lighting
15 complaintsVisibility (wipers, defrost, mirrors)
12 complaintsEngine cooling
10 complaintsVehicle speed control
8 complaintsAir bags
7 complaintsTires
5 complaintsTransmission and drivetrain
5 complaintsEngine
4 complaintsEquipment
4 complaintsLatches, locks and linkages
4 complaints
← All problems reported for the 2005 Chevrolet Trailblazer EXT 370
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 30, 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