The Verdict
Worst problem area
Transmission & Drivetrain
Transmission & Drivetrain is the largest identified problem area: 42 of 201 complaints (21%) mention it. 60 complaints mention a component NHTSA leaves uncategorised. Complaints mentioning Driver Assistance & Speed Control include more reported injuries (4) than those mentioning any other identified area.
At a glance
- NHTSA complaints
- 201
- Recall campaigns
- 4
- EPA fuel cost per year
- $2,000–$2,200
- Combined MPG
- 28–31
Complaints by model year
Where owners report problems
Advertisement
Cost, Fuel Economy & Complaint History
| Category | 2021 | 2022 | 2023 | vs. 2021 Small Sport Utility Vehicle 2WD |
|---|---|---|---|---|
| Annual fuel cost ($) | 2,000–2,200 | 2,000–2,200 | 2,000–2,200 | |
| Combined MPG | 28–31 | 28–31 | 28–31 | |
| City / Highway MPG | 26–29 / 30–33 | 26–29 / 30–33 | 26–29 / 30–33 | |
| CO₂ tailpipe (g/mi) | 288–314 | 289–313 | 290–320 | |
| Complaints filed | 201 | 113 | 75 | |
| Recalls issued | 4 | 1 | 0 | |
| Crash-involved complaints | 7 | 3 | 5 | |
| Fire-involved complaints | 3 | 0 | 2 | |
| Injuries reported | 5 | 3 | 5 | |
| Deaths reported | 0 | 0 | 0 | |
| Configurations compared | 2 | 2 | 2 |
Not compared: this database has no vehicle sales or registration figures, so a raw count mostly reflects how many were sold, not how safe the vehicle is.
Common questions
How many recalls does the 2021 Chevrolet TrailBlazer have?
4 NHTSA recall campaigns as of Nov 7, 2026. Check your VIN with NHTSA to see whether one applies to your car.
What gas mileage does the 2021 Chevrolet TrailBlazer get?
EPA rates it 28–31 MPG combined.
How much does it cost to fuel a 2021 Chevrolet TrailBlazer?
EPA estimates $2,000–$2,200 a year in fuel costs, using EPA's assumptions.
Similar Vehicles
EPA-Rated Configurations (3)
| Configuration | Transmission | Cylinders | Displacement | Drivetrain | Fuel Type | Vehicle Class | City | Highway | Combined | Annual Fuel Cost | CO₂ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Configuration 1 | Automatic 9-spd | 3 | 1.3L | All-Wheel Drive | Regular | Small Sport Utility Vehicle 4WD | 26 mpg (low) | 30 mpg (low) | 28 mpg (low) | $2,200 (high) | 314 g/mi (high) |
| Configuration 2 | Automatic (variable gear ratios) | 3 | 1.3L | Front-Wheel Drive | Regular | Small Sport Utility Vehicle 2WD | 29 mpg (high) | 33 mpg (high) | 31 mpg (high) | $2,000 (low) | 288 g/mi (low) |
| Configuration 3 | Automatic (variable gear ratios) | 3 | 1.2L | Front-Wheel Drive | Regular | Small Sport Utility Vehicle 2WD | 28 mpg | 31 mpg | 29 mpg | $2,150 | 302 g/mi |
Complaints by Category
| Category | Complaints | Crash-Involved | Fire-Involved | Injuries | Deaths |
|---|---|---|---|---|---|
| Engine | 41 | 0 | 1 | 0 | 0 |
| Transmission & Drivetrain | 42 | 1 | 1 | 0 | 0 |
| Fuel System | 18 | 0 | 0 | 0 | 0 |
| Electrical | 41 | 1 | 1 | 0 | 0 |
| Brakes | 33 | 4 | 1 | 3 | 0 |
| Steering | 7 | 1 | 0 | 0 | 0 |
| Suspension, Wheels & Tires | 6 | 0 | 0 | 0 | 0 |
| Airbags & Restraints | 4 | 1 | 0 | 0 | 0 |
| Driver Assistance & Speed Control | 20 | 6 | 1 | 4 | 0 |
| Body, Seats & Latches | 8 | 0 | 0 | 1 | 0 |
| Visibility & Lighting | 4 | 0 | 0 | 0 | 0 |
| Other | 60 | 0 | 0 | 0 | 0 |
A complaint that names more than one category is counted in each, so the rows can add up to more than the total number of complaints.
Recalls (4)
EQUIPMENT:MECHANICAL:ACCESSORY SCISSOR/SCREW/BOTTLE JACK/LIFT:STAND
- 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.
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.
SEATS; SEATS:CRITICAL FASTENERS
- 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.
TIRES; EQUIPMENT:OTHER:LABELS
- 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 and Rims."
- Consequence
- If drivers are uninformed and overinflate or underinflate their tires, this may increase the risk of a crash.
- 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.