NHTSA (USA)High Risk
At a glance
What can fail
The emergency jack can crack or break if not positioned exactly as shown in your owner's manual when you try to use it.
What the fix does
Dealers will replace your jack at no cost to you.
This page covers 4 recalls, 172 owner complaints, NHTSA crash-test ratings and EPA fuel economy for the 2021 Chevrolet Trailblazer.
28–31 mpg combined
7.6–8.4 L/100km
Small Sport Utility Vehicle 2WD
Fuel economy data from fueleconomy.gov (EPA / U.S. Dept. of Energy). Annual cost based on 15,000 mi/yr at 55% city driving and current fuel prices. MPG is U.S. gallons; L/100km converted. Ranges reflect the 3 tested variants for this model year.
4/5 Overall
NHTSA 5-Star Safety Rating
The 2021 Trailblazer draws the most complaints around the powertrain and engine. On the transmission side, owners commonly describe a recurring "Shift to Park" warning that appears even after the vehicle is correctly parked, the car won't recognize it's in park, which prevents the engine from shutting off and can drain the battery. Some owners also report sudden power loss during acceleration and, in a smaller number of cases, the vehicle stalling at speed with multiple warning lights coming on. Engine and electrical complaints overlap here: some stalling incidents involve the auto start/stop system, with owners finding the vehicle only operates reliably once that feature is disabled. Exhaust durability also surfaces across several reports, with owners describing premature muffler failures and leaks on relatively low-mileage vehicles.
172
Total Complaints
7
Crash-Related
3
Fire-Related
4
With Injuries
By System
The 2021 Chevrolet Trailblazer has 4 recalls, the most serious involving front seats that may be missing rear attachment bolts, allowing an occupied seat to shift forward in a crash, and an emergency jack that can fracture under load and drop the vehicle.
On the brake side, contamination in the electronic brake boost system can cut communication between the sensor and the booster, causing the brake pedal to require significantly more force than normal to slow or stop the vehicle. Separately, on vehicles equipped with optional 17-inch sport terrain tires, the certification label is missing the correct tire size and inflation information, which can lead to over- or under-inflated tires if an owner relies on that label.
At a glance
What can fail
The emergency jack can crack or break if not positioned exactly as shown in your owner's manual when you try to use it.
What the fix does
Dealers will replace your jack at no cost to you.
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Driver Assistance
Ratings from NHTSA's New Car Assessment Program (NCAP). Based on 4 tested variants; worst-case ratings shown.
Complaints are owner-reported and reflect individual experiences, not confirmed defects. They are distinct from recalls. Data sourced from the national vehicle safety complaint database. See trending complaints →
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
Contamination at the sensor connection in the electronic brake boost system may interrupt communication between the sensor and brake boost system.
What the fix does
Dealers will replace the electronic brake boost module at no cost to you.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The rear attachment bolts that secure one or both front seats may not have been installed during manufacturing.
What the fix does
Dealers will inspect both front seat attachments and install any missing bolts at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.
At a glance
What can fail
The vehicle's certification label is missing the tire size and cold tire pressure information required by federal safety standards.
What the fix does
GM will mail corrected labels that owners can apply to their vehicles at no cost.
Summarized — see the official notice for exact wording, dates, and contacts.