2021 Chevrolet Trailblazer: owner complaints and recalls
Analysis of 184 owner complaints filed with NHTSA and 4 recall campaigns. Updated 2026-07-25.
184
Complaints
4
Recalls
7
Crash reports
3
Fire reports
5
Injuries
46.7
Severity index
Severity index 46.7 - Medium. This weights crashes, fires, injuries and fatalities per 100 complaints; see methodology.
Among the 90 2021 vehicles we track with at least 40 complaints on file, the 2021 Chevrolet Trailblazer ranks 55 of 90 by severity, where 1 is the worst. Its severity is higher than 39% of its model-year peers. See the full 2021 ranking.
What actually fails
| Component | Complaints | Share of complaints citing it |
|---|---|---|
| UNKNOWN OR OTHER | 52 | 28.3% |
| ELECTRICAL SYSTEM | 38 | 20.7% |
| POWER TRAIN | 36 | 19.6% |
| ENGINE | 34 | 18.5% |
| SERVICE BRAKES | 31 | 16.8% |
| FUEL/PROPULSION SYSTEM | 16 | 8.7% |
| FORWARD COLLISION AVOIDANCE | 10 | 5.4% |
| STRUCTURE | 8 | 4.3% |
The single most-reported system is UNKNOWN OR OTHER, cited in 52 of 184 complaints (28.3%). One complaint can name several systems, so these shares overlap and do not total 100%.
Complaints filed per year
| Year | Complaints |
|---|---|
| 2020 | 6 |
| 2021 | 20 |
| 2022 | 17 |
| 2023 | 15 |
| 2024 | 46 |
| 2025 | 48 |
| 2026 (year to date) | 32 |
Complaint volume is rising - the last three years carry 2.5x the filings of the three before them, which usually signals a wear-related defect surfacing with age.
Recall campaigns
| Campaign | Reported | Component | Summary |
|---|---|---|---|
| 20V537000 | 03/09/2020 | SEATS:CRITICAL FASTENERS | General Motors LLC (GM) is recalling certain 2020 Buick Encore GX and 2021 Chevrolet Trailblazer vehicles. The rear attachment bolts of one or both front seats may not have been installed. |
| 20V295000 | 21/05/2020 | TIRES | General Motors LLC (GM) is recalling certain 2021 Chevrolet Trailblazer vehicles factory-equipped with optional 17-inch sport terrain tires. The certification label on these vehicles does not provide the tire size and cold tire pressure information for front and rear tires, as r |
| 20V588000 | 24/09/2020 | SERVICE BRAKES | General Motors LLC (GM) is recalling certain 2020 Chevrolet Corvette and Cadillac CT4, CT5 and XT4, 2021 Chevrolet Trailblazer, and 2020-2021 Buick Encore GX vehicles. Sensor connection contamination in the electronic brake boost system may cause an interruption of communication |
| 21V440000 | 10/06/2021 | EQUIPMENT:MECHANICAL:ACCESSORY SCISSOR/SCREW/BOTTLE JACK/LIFT:STAND | General Motors, LLC. (GM) is recalling certain 2020-2022 Buick Encore GX and 2021-2022 Chevrolet Trailblazer vehicles. The emergency jack, if not positioned as directed in the vehicle owner's manual, can fracture while in use. |
Source. US National Highway Traffic Safety Administration public complaint and recall APIs (api.nhtsa.gov), retrieved 2026-07-25. Complaints are unverified consumer reports; volume is influenced by how many units were sold and how long the vehicle has been on the road. Not affiliated with NHTSA or any manufacturer.