2004 Chevrolet Trailblazer EXT Visibility (wipers, defrost, mirrors) Problems
- Complaints
- 8about this part
- Share
- 3%of 261 total for the year
- Median mileage
- 44,600miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the visibility of the 2004 Chevrolet Trailblazer EXT, 3% of the 261 complaints for this model year. Where a mileage was given, the median is 44,600 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.
“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“I opened the rear access to my trailblazer and was about to shut it I reached my hand up and started to pull the hatch down. I had moved it about an inch when the back window exploded sending a shower of glass down over me and my five year old son. It shot glass fragments 10 feet. I had glass in my hand and my hair. Son was behind me and luckily he did not receive any injuries. People heard it noise inside the building. The vehicle was clear of ice and snow and it was 20 degrees out, ( not terribly cold comparably). I had never had trouble with the glass or the rear access before. …”
NHTSA complaint #10216044, filed 2008-01, 44,600 miles“2004 Chevrolet Trailblazer Ext- windshield washer unit will not turn off, even with ignition turned off and key removed. Had to remove fuse to shut the system down. Certain 2003 trailblazer models had recall for this same defect.”
NHTSA complaint #10165300, filed 2006-08, 40,345 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“We are the owner of a 2004 chevy trailblazer. I would like to file 4 major concerns regarding our vehicle. The first I have brought to the attention of the chevy company. Our trailblazer was shutting off due to a bad seal somehow connected when the heat/air is running. The vehicle just shuts off and you lose complete control. We had an outside mechanic fix the problem. The second is the loss of our windshield front windshield wipers. They no longer work. The 3rd is the rear molding broke loose from water collecting and then freezing with no way of preventing this from happening. …”
NHTSA complaint #10292213, filed 2009-11Related service bulletins
- 10226383Oct 18, 2022This Preliminary Information communication provides information to the technician that the Cam gear alignment can be incorrect after replacing the HVAC mode actuator.
Visibility (wipers, defrost, mirrors): 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 complaintsAir bags
7 complaintsBody and structure
7 complaintsEngine
5 complaintsLatches, 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 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