2021 Chevrolet Trailblazer Body and structure Problems
- Complaints
- 8about this part
- Share
- 4%of 197 total for the year
- Median mileage
- 150miles
- Trend
- Not enough dataFewer than 15 complaints, too few for a reliable trend.
NHTSA recorded 8 complaints about the body and structure of the 2021 Chevrolet Trailblazer, 4% of the 197 complaints for this model year. Where a mileage was given, the median is 150 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.
“Purchased on 7/24/20. On 8/1, found a defect spot on grill. Dealership ordered new grill. On 8/9, noticed paint bubbling/peeling on hood. 8/15 - 8/20, dealership had grill replaced and hood painted. 8/21, noticed hood not painted completely. 8/24 - 8/28, dealership had vehicle to repaint hood. 9/17 found fender clips on front passenger side missing.10/2 back to have clips installed. Dealer didn't order enough clips so waiting on more clips to arrive. 10/16 back to have remaining clips installed. 10/27 noticed paint peeling under passenger side headlight. …”
NHTSA complaint #11366803, filed 2020-10, 150 miles“Found standing water in spare tire well. Back seat constantly wet, growing mold. The whole back area is moldy, mold under driver seat. My back passenger door seal has mold and water. Seat belts in back, MOLD. I had to wear a mask just to drive to the store. The mold turning black the day I took it to a shop for a water test. It's been two days and I still haven't heard anything about the water test.”
NHTSA complaint #11636360, filed 2025-01“I was driving on the freeway and my panoramic moonroof literally exploded from the inside out. It sounded like a gunshot almost. Then the glass shattered. I am glad that the screen was closed otherwise all the glass would have gotten in my car.”
NHTSA complaint #11435288, filed 2021-10“I first noticed an issue about a year ago when an electrical blaring noise was coming from my speakers followed by popping and crackling noises. I have taken my car into the dealership several times without resolution. Since then, I have noticed excessive humidity in the vehicle and recently found the trunk was flooded. I took the vehicle in to the dealership again, and they say the interior fabric is compromised now and the electrical sounds I was experiencing are coming from electrical damage inside the body. …”
NHTSA complaint #11602667, filed 2024-07“I could turn off the engine after driving, but the key stays in the position between the engine being on and the car being off (for example when you can listen to music but your car isn’t running). The battery light came on after the issue started and so the car service place charged us to replace the battery, because they had to turn on and of the car a lot and the car had to continue to run. I took it to a car service place and they ran tests and called Chevy test support to run diagnosis tests. They can’t figure it out. They think it might be the body control module. Not sure what that is. …”
NHTSA complaint #11657328, filed 2025-04Related service bulletins
- 11015382Feb 20, 2025This informational bulletin provides a procedure on how to remove the paint stain that may present itself under the shipping film.
- 11014171Jan 31, 2025This service bulletin provides information on proper use of floor mats.
- 11014238Jan 30, 2025This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
- 11011709Nov 5, 2024This bulletin advises the dealers to maintain the vehicle stock on hand by doing a full inspection on the vehicles before being sold (prepping) to the customer.
- 11010493Oct 5, 2024This warranty administration service bulletin provides information about GM Accessories - Dealer-Installed, Repaired or Replaced During Warranty Coverage Period.
- 11009764Sep 21, 2024This service bulletin provides information on Concerns or Questions Regarding Installation of Dealer Installed Accessories.
Body and structure: other model years
| Year | Complaints | Share of year |
|---|---|---|
| 2025 | 1 | 4% |
| 2024 | 1 | 3% |
| 2022 | 4 | 4% |
| 2021 | 8 | 4% |
| 2008 | 6 | 3% |
| 2007 | 11 | 2% |
| 2006 | 26 | 2% |
| 2005 | 27 | 2% |
| 2004 | 23 | 2% |
| 2003 | 43 | 5% |
| 2002 | 40 | 3% |
| 2001 | 3 | 15% |
| 2000 | 2 | 8% |
Other parts of the 2021 Chevrolet Trailblazer
59 complaintsElectrical system
41 complaintsTransmission and drivetrain
41 complaintsEngine
38 complaintsBrakes
32 complaintsFuel system
18 complaintsForward collision avoidance
11 complaintsSteering
6 complaintsVehicle speed control
5 complaintsVisibility (wipers, defrost, mirrors)
4 complaintsAir bags
3 complaintsBack-over prevention (rear camera)
3 complaints
← All problems reported for the 2021 Chevrolet Trailblazer
About this data. Data from NHTSA (ODI) complaints, recalls, TSBs and investigations, updated Oct 27, 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