NHTSA lists 194 complaints for the 2021 Chevrolet Trailblazer, 7 of them mention a crash and 3 mention a fire. 4 complaints mention an injury, with 5 injuries and 0 deaths reported.
Data build 2026-10-09.
NHTSA lists this vehicle as CHEVROLET TRAILBLAZER.
Model-generated complaint tags
These labels are model-generated, not NHTSA data.
Failure modes| Label | Count | Share of tagged | Mean confidence |
|---|
| electrical electronic | 80 | 41.2% | 0.88 |
|---|
| mechanical failure | 45 | 23.2% | 0.86 |
|---|
| loss of control | 27 | 13.9% | 0.82 |
|---|
| noise or comfort | 11 | 5.7% | 0.80 |
|---|
| fluid or fuel leak | 8 | 4.1% | 0.86 |
|---|
| visibility or lighting | 8 | 4.1% | 0.79 |
|---|
| fire or overheating | 5 | 2.6% | 0.92 |
|---|
| unclear | 4 | 2.1% | 0.91 |
|---|
| restraint or airbag | 3 | 1.5% | 0.99 |
|---|
| structural or corrosion | 3 | 1.5% | 0.72 |
|---|
Severities| Label | Count | Share of tagged | Mean confidence |
|---|
| moderate | 106 | 54.6% | 0.84 |
|---|
| low | 75 | 38.7% | 0.74 |
|---|
| high | 9 | 4.6% | 0.97 |
|---|
| none | 3 | 1.5% | 0.68 |
|---|
| critical | 1 | 0.5% | 0.98 |
|---|
Model: typesafe/jev-1.13-20260917; schema version: tag-v1. 194 tagged complaints of 194 complaints (100.0%).
Confidence is the model's own probability for the label it chose (0 to 1), not accuracy.
Model-generated labels on tagged complaints only. Model years 2013 and newer are tagged in full; 2012 in part (see tagged_share); earlier model years have no tags. NHTSA's own flags remain separate in the complaints block.
Recalls
See new recalls and investigations this week.
4 recalls.
Date: 2021-06-10. Systems: EQUIPMENT.
Defect: 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.
Consequence: A fractured jack can cause the vehicle to collapse, increasing the risk of injury.
Remedy: Dealers will replace the jack, free of charge. Interim owner notification letters informing owner of the safety risk are expected to be mailed July 26, 2021. A second notice will be mailed once remedy parts become available. Owners may contact Buick customer service at 1-800-521-7300 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is A212335470.
Do not drive: No. Park outside: No.
Date: 2020-09-24. Systems: SERVICE BRAKES.
Defect: 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 between the sensor and the brake boost system.
Consequence: If communication with the sensor is interrupted, the electronic brake boost assist could be lost. Extra pedal force will be required to slow and stop the vehicle, increasing the risk of a crash.
Remedy: GM will notify owners, and dealers will replace the electronic brake boost module, free of charge. The recall began December 9, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438, Cadillac customer service at 1-800-333-4223, or Buick customer service at 1-800-521-7300. GM's number for this recall is A202307260.
Do not drive: No. Park outside: No.
Date: 2020-09-03. Systems: SEATS.
Defect: 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.
Consequence: If an occupied front seat is missing the rear attachment bolts, it may move during a crash, increasing risk of injury to the occupant.
Remedy: GM will notify owners, and dealers will inspect seat attachments for both front seats and install attachment bolts as needed, free of charge. The recall began October 1, 2020. Owners may contact Chevrolet customer service at 1-800-630-2438 or Buick customer service at 1-800-521-7300. GM's number for this recall is A202304380.
Do not drive: No. Park outside: No.
Date: 2020-05-21. Systems: EQUIPMENT, TIRES.
Defect: 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 required. As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard Number 110, "Tire Selection (excerpt)
Consequence: If drivers are uninformed and overinflate or underinflate their tires, this may increase the risk of a crash. (excerpt)
Remedy: GM will notify owners, and will mail corrected labels for customers to apply, free of charge. The recall began July 1, 2020. Owners may call Chevrolet customer service at 1-800-222-1020. GM's number for this recall is A202304070. (excerpt)
Do not drive: No. Park outside: No.
Manufacturer communications
754 manufacturer communications.
Communications by system| System | Count |
|---|
| EQUIPMENT | 192 |
|---|
| ELECTRICAL SYSTEM | 165 |
|---|
| ENGINE AND ENGINE COOLING | 138 |
|---|
| UNKNOWN OR OTHER | 126 |
|---|
| POWER TRAIN | 94 |
|---|
| ENGINE | 64 |
|---|
| WHEELS | 33 |
|---|
| STRUCTURE | 31 |
|---|
11037555
Date: 2026-09-26. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
11037252
Date: 2026-09-04. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary Information provides the dealer information of the location of the rear seat child anchors.
11037253
Date: 2026-09-04. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This preliminary information advises a dealer on how to email GDS2 session logs into Technical Assistance.
11036693
Date: 2026-08-28. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary Information provides a diagnostic tip for diagnosing an issue with Cruise Control, Adaptive Cruise and Lane Keep Assist Turns Off or Inoperative.
11036392
Date: 2026-08-20. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary information communicates to dealer to perform a MEC reset for wireless projection issues
11035696
Date: 2026-07-31. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary information communicates to the techicians a diagnostic tip if a customer has a complaint of a whistle/wind noise at highway speeds.A
11035349
Date: 2026-07-23. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary information communicates to the technician the direction needed when encountering an issue with switching between adaptive cruise control and regular cruise control or an issue with automatic high beam feature after the front camera was replaced.
11035340
Date: 2026-07-21. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
PI to help diagnose A/C concern
11034769
Date: 2026-06-23. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
This Preliminary information communicates an issue with an OTA pending message still displayed after an OTA event and how to reset/clear the message.
11033723
Date: 2026-06-03. Type: Service Bulletin/Repair Instructions. Systems: UNKNOWN OR OTHER.
PIP6032B provides diagnostic direction for dealers when encountering transmission leaks