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EquipmentPart report

2004 Chevrolet Trailblazer EXT Equipment Problems

Complaints
9about this part
Share
3%of 261 total for the year
Median mileage
48,000miles
Trend
Not enough dataFewer than 15 complaints, too few for a reliable trend.

NHTSA recorded 9 complaints about the equipment of the 2004 Chevrolet Trailblazer EXT, 3% of the 261 complaints for this model year. Where a mileage was given, the median is 48,000 miles. 2 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.

“I buckled up my child's safety seat and it did not provide an anchor point on the back of the bench seat to be able to provide head support in an event of a crash. The rear seatbelt also did not provide a lock feature; therefore providing whiplash in the event of a crash or even cause the car seat to fall over on the left - out the back passenger window or to the right tipping on another passenger, causing injury.”

NHTSA complaint #10221355, filed 2008-03, 45,000 miles

“I have a 2004 Chevrolet trailblazer and the rear glass has shattered 2 times the first time we reported it as a window being shot out but im not sure that's what happened now there was no proof that's what happened for sure I opened the outside door to my house then I shut it to hear my window shatter ins paid to replace it and that was just over a year ago it cost a total of 1200.00 to get fixed then last night we were getting stuff out of the back of the car and as my husband pushed it shut the window shattered into a million pieces this would have cut him up bad if it would not have been…”

NHTSA complaint #10295352, filed 2009-12, 105,265 miles

“When had the crash which was very hard loud and scary the air bags didn't deploy nor did the air bags on the side of seat. The crash was very serious and the electrical system and powertrain to windows.”

NHTSA complaint #10626575, filed 2014-08, 47,000 miles

“1. Normal driving, 2. The cd player will not eject the cd, 3. Attempted to get it out and then researched for how to's and found it was impossible to fix without getting a new stereo.”

NHTSA complaint #10376811, filed 2011-01, 49,000 miles

“My air/heat on occasion has not worked. This happened a few times where I would turn on the system and everything would sound like it was on but nothing would blow out at all. My vehicle is of course out of warranty and I went to my mechanic who said this is an on going issue with many GM vehicles. Currently my unit is not working again.”

NHTSA complaint #10224108, filed 2008-04

Related service bulletins

Equipment: other model years

YearComplaintsShare of year
200611%
200493%
200341%
200244%

Other parts of the 2004 Chevrolet Trailblazer EXT

Electrical system
145 complaints
Fuel system
46 complaints
Transmission and drivetrain
17 complaints
Engine cooling
16 complaints
Exterior lighting
13 complaints
Vehicle speed control
9 complaints
Steering
8 complaints
Visibility (wipers, defrost, mirrors)
8 complaints
Air bags
7 complaints
Body and structure
7 complaints
Engine
5 complaints
Latches, locks and linkages
3 complaints

← All problems reported for the 2004 Chevrolet Trailblazer EXT

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