RoadVitals

2021 Chevrolet Trailblazer Body & structure Problems

Owner-reported complaints naming the body or structure system, filed with NHTSA

Data refreshed

Body & structure reportsComplaints are reports submitted to NHTSA by owners and drivers. NHTSA does not verify most reports before publishing them, and a complaint does not establish that a defect exists. Volume is influenced by how many of a vehicle were sold, how long it has been on the road, and how much attention an issue has received.
8
Latest Apr 28, 2025
Share of all reportsThis category as a share of every owner report on file for this model year. One report can name more than one component, so the categories overlap.
4%
of 189 total
Crash or fire reportedReports in this category whose submitter recorded that a crash or a fire occurred. The reporter's own answer on the NHTSA form, not a verified finding.
0
Injuries or deaths reportedTotals the submitters entered on their own reports in this category. Not verified by NHTSA and not a casualty statistic.
1

What this page shows

Reports naming the vehicle structure, frame, body panels, doors, hood and trim. Every record below is an owner-reported complaint about the 2021 Chevrolet Trailblazer submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 8 reports on file name it.

Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.

Owner reports naming body or structure

Shown in the owner’s own words, exactly as filed

Body & structure
Filed Apr 28, 2025

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. The car only has 31,000 miles on it and this is a safety issue because what if this happens and the steering wheel locks or it becomes a rolling hazard. This would affect the driver and others. There were no lights or errors indicating a problem before this happened.

NHTSA ID
11657328
Incident
Apr 4, 2025
Body & structure
Filed Jan 16, 2025

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 ID
11636360
Incident
Dec 29, 2024
Body & structureElectrical
Filed Jul 16, 2024

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. I have now read another review online from someone who had the exact same experience with this make and model. I believe this is a safety hazard to drivers who are unknowingly driving around for months in a vehicle that could be flooding and could cause severe damages like in my case. I have documents to support these claims, but I do not have electronic copies. If someone reaches out to me I can provide hard copies.

NHTSA ID
11602667
Incident
Jul 1, 2024
Body & structure
Filed Jul 14, 2023

The contact owns a 2021 Chevrolet Trailblazer. The contact stated that during inclement weather, water accumulated inside all four door panels. The contact stated no warning light was illuminated. The vehicle was taken to the local dealer and the contact was informed that the failure was common in the year, make, and model vehicle. The vehicle was not repaired. The manufacturer had been informed of the failure. The failure mileage was 23,520.

NHTSA ID
11532225
Incident
Jun 18, 2023
Mileage
23,520 mi
Body & structure
Filed May 3, 2022
1 injury reported

The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while outside the vehicle, the power liftgate opened and closed independently. The liftgate struck the driver on the head. The vehicle was taken to the local dealer but the vehicle was not diagnosed or repaired. The manufacturer was notified of the failure but no additional assistance was provided. The approximate failure mileage was 5. The contact stated that this issue happens a lot and at any time.

NHTSA ID
11463175
Incident
May 3, 2021
Mileage
5 mi
Body & structureDriver assistanceOther / unspecified
Filed Dec 19, 2021

I have had multiple issues with the car since I've purchased it. The brakes continuously make noise, and the automatic Emergency Braking DOES not work. The tire pressure sensors don't work, they have the wrong tire pressure for each tire, and the tires constantly over inflate. Also, my front bumper is coming off. I've taken it to the dealership for all of these things, the dealership said the brakes seem fine, the front bumper clips seem to have warn down for some reason, and that they reset my tire pressure. There was no permanent solution. They put a band aid on my problem and I still have all of these issues.

NHTSA ID
11444324
Incident
Jul 22, 2021
Body & structure
Filed Oct 3, 2021

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 ID
11435288
Incident
Oct 3, 2021
Body & structure
Filed Oct 28, 2020

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. I HAVE AN OPEN CLAIM WITH GM REGARDING ALL OF THIS.

NHTSA ID
11366803
Incident
Aug 1, 2020
Mileage
150 mi

Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.

Other components reported on this vehicle

Categories with enough reports to have a page of their own

Elsewhere on this vehicle

Data sources

Data on this page last refreshed .