2004 Chevrolet Trailblazer EXT Other or unknown Problems
- Complaints
- 3about this part
- Share
- 1%of 261 total for the year
- Median mileage
- 55,000miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 3 complaints about the other or unknown of the 2004 Chevrolet Trailblazer EXT, 1% of the 261 complaints for this model year. Where a mileage was given, the median is 55,000 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.
“Stalls - I have taken this trailblazer into the dealer for this stalling problem and I am told no problem found. Vehicle stalls after coming to a stop or when moving slowly. This is an intermittent.”
NHTSA complaint #11042913, filed 2017-11, 12,000 milesRelated service bulletins
- 11020816Jul 18, 2025This PI communicates the requirement to provide a pico file to receive diagnostic assistance from TAC.
- 11007208Sep 6, 2024This Preliminary Information communication provides information to the technician about changing the tire and wheel size on vehicles. General Motors will only support a tire…
- 11004557Jun 17, 2024This bulletin provides information for use on a Product Assistance Claim (PAC), which is formerly known as a Product Allegation Resolution (PAR) claim.
- 11000576May 7, 2024This Warranty Administration bulletin provides retail and wholesale service personnel with the policies/procedures and the warranty transaction submission procedures that support…
- 10079728Jan 15, 201614423c - special coverage (revised service procedure). A fuel tank inlet check valve (icv) could fracture. The icv is located above the full fuel level. A fractured icv could…
- 10079705Jan 12, 201614423b - special coverage (revised part information and service procedure). A fuel tank inlet check valve (icv) could fracture. The icv is located above the full fuel level. A…
- 10201115Dec 1, 2015OnStar Voice Fallback Number Update
Other or unknown: other model years
Other parts of the 2004 Chevrolet Trailblazer EXT
145 complaintsFuel system
46 complaintsTransmission and drivetrain
17 complaintsEngine cooling
16 complaintsExterior lighting
13 complaintsEquipment
9 complaintsVehicle speed control
9 complaintsSteering
8 complaintsVisibility (wipers, defrost, mirrors)
8 complaintsAir bags
7 complaintsBody and structure
7 complaintsEngine
5 complaints
← All problems reported for the 2004 Chevrolet Trailblazer EXT
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