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NHTSA Vehicle Research

2021 Chevrolet Trailblazer Research

Free safety data straight from the National Highway Traffic Safety Administration. Recalls, consumer complaints, and crash test ratings — everything you need before you buy.

4 Recalls
172 Complaints
5★ Safety Rating
FREE Gov Data

🛡️ NCAP Crash Test Safety Ratings

Year Overall Front Crash Side Crash Rollover
2021

⚠️ NHTSA Recalls (4)

The following safety recalls have been issued by NHTSA for the Chevrolet Trailblazer. If you own this vehicle, check your VIN at our VIN lookup tool or NHTSA.gov to see if your vehicle is affected.

2021 Model Year (4 recalls)

Campaign #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.

Risk: If an occupied front seat is missing the rear attachment bolts, it may move during a crash, increasing risk of injury to the occupant.

Fix: 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.

Campaign #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 required. As such, these vehicles fail to comply with Federal Motor Vehicle Safety Standard Number 110, "Tire Selection and Rims."

Risk: If drivers are uninformed and overinflate or underinflate their tires, this may increase the risk of a crash.

Fix: 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.

Campaign #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 between the sensor and the brake boost system.

Risk: 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.

Fix: 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.

Campaign #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.

Risk: A fractured jack can cause the vehicle to collapse, increasing the risk of injury.

Fix: 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.

💬 Consumer Complaints (172)

Real complaints filed with NHTSA by Chevrolet Trailblazer owners. These reports help identify common issues and potential safety concerns.

Most Reported Components

ComponentComplaints
UNKNOWN OR OTHER 28
POWER TRAIN 23
ENGINE 14
SERVICE BRAKES 12
ELECTRICAL SYSTEM 9
ELECTRICAL SYSTEM,UNKNOWN OR OTHER 7
FUEL/PROPULSION SYSTEM 5
ENGINE,FUEL/PROPULSION SYSTEM 5
STRUCTURE 4
ELECTRICAL SYSTEM,ENGINE 3
2021 model • UNKNOWN OR OTHER • 05/15/2026

I needed to have my muffler welded in November to pass inspection. I was told I would likely need the entire thing replaced in a year. I now hear another exhaust leak, and I’m preparing for a hefty car travel and have to deal with trying to get it fixed in 10 days time. This is ridiculous on a 5…

2021 model • ELECTRICAL SYSTEM,UNKNOWN OR OTHER • 07/01/2024

Intermittently I will receive a dashboard message reading “shift to park” after I park the vehicle and do shift to park. This is a known issue with this vehicle across several years identified as “a known issue caused by a faulty switch in the shifter assembly failing to detect when the car is in Park”. GM has identified and found…

2021 model • POWER TRAIN • 01/13/2026

I am reporting a serious safety issue with my 2021 Chevrolet Trailblazer related to transmission failure. The vehicle has approximately 83,000 miles. While driving, the vehicle experiences a sudden loss of power when attempting to accelerate. In some instances, the vehicle has stalled or shut off while I was actively driving, creating a dangerous situation, especially when merging into traffic…

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