2004 Chevrolet Trailblazer EXT Body and structure Problems
- Complaints
- 7about this part
- Share
- 3%of 261 total for the year
- Median mileage
- 88,500miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 7 complaints about the body and structure of the 2004 Chevrolet Trailblazer EXT, 3% of the 261 complaints for this model year. Where a mileage was given, the median is 88,500 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 first time I was in a car wash and heard a loud banging noise. I looked back and could see the upper tailgate molding flopping in the wind of the car wash dryer being held on by only the brake wires. At that time it was replaced under warranty. 2nd replacement about 3 years later same thing. Now recently I noticed again that on the drivers side screw attachment on the molding has broken away again and it's my responsibility to shell out the $500+ to have it replaced again. …”
NHTSA complaint #10597484, filed 2014-06, 36,000 miles“I was driving to work this morning and the tailgate on my '04 chevy trailblazer popped open. I was in morning traffic and it has happened before but now I am wondering if there is a recall for the issue?”
NHTSA complaint #10254124, filed 2009-01, 72,000 miles“I own a 2004 Chevrolet Trailblazer Ext. The glass portion of the tailgate became unglued from the hinge. This did not allow the glass portion to latch properly. The dealership/body shop said they had never seen that happen. In all the opening to investigate the problem, the support bar for the glass failed and the entire liftgate cover was loose. My thoughts are the cover was the start of the hinge coming unglued as the body shop said that they have had cases where the cover comes flying off. This would place stress on the hinge/glue and cause a failure. …”
NHTSA complaint #10245054, filed 2008-10, 133,000 miles“My family was driving home on the freeway when the complete third taillight cover blew off. It appears that the adhesive that attaches the rear spoiler to the glass of lift gate has loosened due to a manufacturer defect.”
NHTSA complaint #11063544, filed 2018-01, 105,000 miles“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
- 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…
- 10037570Apr 1, 2012Gm: on some truck models there is some frame corrosion. *rm updated on 5/2/2012.
- 10020523Aug 1, 2006Rear liftgate binds, improper fit. May be caused by broken welds or cracks formed around the two inner welds.
Body and structure: 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 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 28, 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