2021 CHEVROLET Trailblazer

Recalls, Specs & Safety Report

4RecallsNHTSA Verified100ComplaintsNHTSA Data1InvestigationsNHTSA Data
Expert Verdict
ℹ️Average Safety Profile

This 2021 model shows average reliability, primarily driven by 4 recalls affecting the seats system.

Key Factor:seats recalls

📋Why This Matters

Understanding recall history helps predict future ownership costs. Each unaddressed issue represents potential repair expenses.

Insurance companies review vehicle reliability data when setting premiums. Models with elevated recall rates often see adjusted pricing.

Focus Area:general reliability
📊

Expert Analysis

The 2021 Trailblazer analysis highlights key safety metrics.

Critical Component: Warning

Safety & Reliability Score

58/100
Below Average

Score Breakdown

Recall Impact-32
Complaint Impact-5
Investigation Impact-5

Technical Specifications

Key specifications for the 2021 CHEVROLET Trailblazer

Model Year2021
MakeCHEVROLET
ModelTrailblazer
Fuel TypeGasoline
Body ClassPassenger Vehicle

Safety History Timeline

Scroll for more →
Mar20
RECALLRecall Issued
Jan21
NEWProduction
Jan21
RECALLRecall Issued
Jan21
RECALLRecall Issued
Oct21
RECALLRecall Issued
Apr23
INVInvestigation Opened
Jun23
ISSUEFirst Report

Consumer Complaint Analysis

⚠️

Most Reported Issue

22 complaints (22% of total)
➡️

Complaint Trend

Stable
No trend data
✅

Safety Incidents

No critical incidents

Complaint Severity Distribution

Breakdown of 100 consumer complaints by severity level.

🟠High
4(4%)
🟡Medium
12(12%)
🟢Low
84(84%)

Mileage Failure Analysis

⚙️Engineering Insight

Based on consumer reports, issues for this vehicle tend to peak around the 20k-40k mileage range. The average reported failure mileage is 44,288 miles.

📊 Mileage data extracted from 29 of 100 complaints (29% coverage)
0-20k
2 reports (7%)
20k-40k
14 reports (48%)
40k-60k
7 reports (24%)
60k-80k
2 reports (7%)
80k-100k
3 reports (10%)
100k+
1 reports (3%)
* Analysis based on mileage data extracted from consumer complaint descriptions. Actual failure rates may vary.

🛠️ DIY Diagnosis Center

Experiencing an issue? Select a symptom to find official manufacturer solutions (TSBs).

Primary Risk Areas

SEATSTIRESSERVICE BRAKESEQUIPMENT

Official Safety Recalls (4)

Campaign: 20V537000

SEATS:CRITICAL FASTENERS

Summary

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.

Additional Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Manufacturer: General Motors LLC

Campaign: 20V295000

TIRES

Summary

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.

Additional Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Manufacturer: General Motors LLC

Campaign: 20V588000

SERVICE BRAKES

Summary

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.

Additional Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.safercar.gov.

Manufacturer: General Motors LLC

Campaign: 21V440000

EQUIPMENT:MECHANICAL:ACCESSORY SCISSOR/SCREW/BOTTLE JACK/LIFT:STAND

Summary

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.

Additional Notes

Owners may also contact the National Highway Traffic Safety Administration Vehicle Safety Hotline at 1-888-327-4236 (TTY 1-800-424-9153), or go to www.nhtsa.gov.

Manufacturer: General Motors, LLC

NHTSA Investigations

1 investigation

Official NHTSA safety investigations for 2021 Trailblazer.

INV-2021-1000🟢 Closed

NHTSA opened investigation after receiving consumer complaints regarding Trailblazer performance issues.

Opened: Affected Units: 50,789

Consumer Complaints

100 total complaints

Consumer-reported issues submitted to NHTSA for 2021 Trailblazer.

Common Reported SymptomsAI Analysis

Warning22%
Display12%
Check Engine Light10%
Stuck8%
Battery8%
Acceleration Issues5%
Smell5%
Electrical🔵 Low
ELECTRICAL SYSTEM,UNKNOWN OR OTHER

After trying to remove rhe key from ignition, it gets stuck and won't come out unless I turn the car on, shift it into drive, wiggle the steering wheel, and try it again. Sometimes it works. Alot of times it take 5-10 min to get it out.

Dec 21, 2025Open
Engine/Powertrain🔶 Medium
ELECTRICAL SYSTEM,ENGINE

The issue is the yellow engine light lit up on the dash of my 2021 Trailblazer in late August of 2025. At the same time, the cluster displayed the message "Engine Power is Reduced". Over the next few weeks my car engine would randomly stall out while I was driving! As you can imagine, this is a very unsafe driving condition. My car stalls and I'm in traffic and have no ability at all to control the vehicle. This happened at least 4 times to me. When I checked the On Board Diagnostic codes on my vehicle the system reported back U060F (Mass Air Flow Sensor). I searched online for this condition with 2021 Trailblazers and found GM Service Bulletin number 22-NA-008, dated March of 2022. This Service Bulletin clearly shows that Chevrolet were well aware of a problem years before it occurred to my vehicle. So, in October I took my car to Bowman Auto Center, explained all of the above to them, and I mentioned the Service Bulletin that I found. Their investigation found that, indeed, the cause of my engine stalling was broken wires to the Mass Air Flow sensor (MAF sensor). Bowman repaired my car and billed me 364.44 as shown on the attached 2-page Repair Order. I tried to make the case with the Bowman Service Department that this should be a warranty repair, and paid by GM. Bowman responded that it was only a Service Bulletin from GM for the issue, and the customer is responsible for payment. I am astonished that repair of this product Design Failure, which results in an unsafe driving condition, would be paid for by the customer! The reason I call it a Design Failure is because NO wiring should break during the life of a vehicle. Engines rock and move, and the Trailblazer design should have compensated for this engine movement by having a sufficient slack loop designed into the wire harness leading to the Mass Air Flow sensor. I filed a case with Chevrolet, number 80982656, but they declined my request for reimbursement .

Nov 20, 2025Open
Engine/Powertrain🔵 Low
FUEL/PROPULSION SYSTEM

2021 Chevrolet Trailblazer check engine code P1467

Nov 11, 2025Open
Engine/Powertrain🔵 Low
POWER TRAIN

The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while attempting to park, the vehicle failed to shift into park properly, and the message “Vehicle Not in Park” was displayed. The contact stated that several attempts were needed before the transmission was able to be shifted into park. The vehicle was taken to the dealer, where it was diagnosed and determined that the shifter gear assembly had failed and needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The approximate failure mileage was 40,000.

Oct 30, 2025Open
Electrical🔵 Low
ELECTRICAL SYSTEM,SERVICE BRAKES

There is a faulty sensor on this car that does not allow the car to be properly parked and gives the error message "Shift to park" on the dashboard. You have to turn the car back on and mess with the shifter multiple times to get it to register that it is park. This usually takes about 10 attempts every time you need to park the car. There are other reports regarding this exact issue on this car that further validates that this issue is relevant and needs to be addressed through a recall.

Oct 27, 2025Open
Other🔵 Low
UNKNOWN OR OTHER

THE LOCKING MECHANISM HAS WENT OUT IN ALL DOORS. UNABLE TO UNLOCK / LOCK AND ONCE THEY ARE LOCKED, UNABLE TO OPEN THE DOOR UNLESS IT IS OPENED FROM THE INSIDE. I REPLACED THE DRIVERS SIDE DOOR LOCK ACTUATOR AND MECHANIC STATED THEY ALL NEEDED TO BE REPLACED.

Oct 21, 2025Open
Engine/Powertrain🔵 Low
POWER TRAIN,ENGINE

The contact owns a 2021 Chevrolet Trailblazer. The contact stated that after reversing, the transmission was shifted to drive (D), but the vehicle failed to immediately recognize the selected gear. The check engine warning later illuminated. The vehicle was taken to an independent mechanic, who determined that the under boost, transmission control module, and transmission control solenoid had failed, and there was a loss of communication with the radio and loss of communication with the telematic control module. The mechanic advised the contact to take the vehicle to the dealer for assistance. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to report the failure to the NHTSA Hotline. The failure mileage was approximately 42,000.

Oct 16, 2025Open
Other🔵 Low
UNKNOWN OR OTHER

I have a shift to park message that is malfunctioning and I can't shut off my car.

Oct 7, 2025Under Review
Engine/Powertrain⚠️ High
STEERING,VEHICLE SPEED CONTROL,ENGINE

Experiencing reduced speed, rattling noise, check engine light, power steering light on. Chevy app shows throttle control system and antilock break system error messages. Took to Chev dealership. Advised it was fuel injector (1 /4 was burned out). Had all 4 replaced ($3000). Picked up car on a Friday, vehicle was having the same issues next day Saturday. Took it back on Monday, it is now Wednesday and they’re saying it’s the turbo charger now (another $3000). Mechanic couldn’t figure out what the issue was so it took 3 days for him to now say it’s the turbo charger. I think it was the turbo charger from the get go! What’s the purpose of the diagnostics ($250)? Isn’t it to pinpointed the issue? 1st day, took him 4 hours to say it was the fuel injector. 2nd time around it took 3 days. I kept showing them and telling them it’s the throttle control system! They’re trying to rip me off! Mechanic is saying he’s been test driving it and no issues. I took a photo of my mileage before I handed them my car and it was 79,190. The mileage today says 79,191. How and where is he test driving it if it’s only been 1 mile? Reverse and forward ? They’re lying

Oct 1, 2025Under Review
Other🔵 Low
UNKNOWN OR OTHER

Shift to park error. I put the car in park but it tell I get a notice to shift the car in park when it’s already in park. Beeps and continues to tell me to shift my car in park when it’s in park. Turn off the car get out and close the door and the notice and beeping continues while the car is off and in park. Been happening since I bought it.

Sep 29, 2025Under Review

Frequently Asked Questions

Are there any recalls for the 2021 CHEVROLET Trailblazer?

Yes, the 2021 CHEVROLET Trailblazer has 4 recorded recalls from NHTSA. These recalls cover various components including SEATS:CRITICAL FASTENERS, TIRES, SERVICE BRAKES.

Is the 2021 CHEVROLET Trailblazer safe to drive?

The 2021 CHEVROLET Trailblazer has 4 recalls. If you own this vehicle, check with your dealer to ensure all recall repairs have been completed. Most recalls have free remedies available.

Where can I check if my 2021 CHEVROLET Trailblazer has open recalls?

You can check for open recalls by visiting NHTSA.gov and entering your Vehicle Identification Number (VIN), or by contacting your local CHEVROLET dealer.

🎯Risk Areas & Recommended Actions

Based on recall data, these components require verification:

1

Seats

Issue: increases crash or loss-of-control risk

✅

If you already own this vehicle: Contact your dealer immediately to confirm seats recall is complete. Recall repairs are always free.

🔍

If you are evaluating a used example: Request VIN and verify all seats recalls are completed before purchase.

Campaign:20V537000
2

Tires

Issue: increases crash or loss-of-control risk

✅

If you already own this vehicle: Contact your dealer immediately to confirm tires recall is complete. Recall repairs are always free.

🔍

If you are evaluating a used example: Request VIN and verify all tires recalls are completed before purchase.

Campaign:20V295000
3

Service brakes

Issue: increases crash or loss-of-control risk

✅

If you already own this vehicle: Contact your dealer immediately to confirm service brakes recall is complete. Recall repairs are always free.

🔍

If you are evaluating a used example: Request VIN and verify all service brakes recalls are completed before purchase.

Campaign:20V588000
💡Visit NHTSA.gov or contact your CHEVROLET dealer to verify recall completion status.

🧭What This Means for You

Families with young passengers, pregnant drivers, or those with frequent highway commutes should prioritize this information.

If you're unsure, we recommend starting with a VIN check or consulting a certified mechanic.

🔑

If You Own This Vehicle

  • Verify all 4 recalls have been completed using your VIN at NHTSA.gov or through your CHEVROLET dealer.
  • If any recalls are open, schedule service immediately—recall repairs are always free.
  • Consider setting up VIN-specific alerts to receive notification of future recalls.
🛒

If You're Buying Used

  • Request documentation proving all recalls were addressed before finalizing purchase.
  • Factor potential recall-related service time into your ownership cost estimates.
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Data sourced from the National Highway Traffic Safety Administration (NHTSA). Last updated: January 10, 2026.