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2021 Chevrolet Trailblazer: raw data

Every record we hold for this vehicle, as plain tables, with nothing added. The consumer page shows the same records with the maintenance schedule, price ranges and nearby shops around them.

vehicle2021 / chevrolet / trailblazer
known issues7 clusters (reviewed 2026-08-20)
complaints193 on file (2020-09-13 → 2026-09-15)
recalls4
investigations0
fars13 occupant deaths, crash years 2010-2024 (legacy-code)
indexedyes
licenseCC BY 4.0 (derived)

Known Issues clusters all years →

Shift-to-park warning preventing engine shutoffPOWER TRAIN52 complaints2022-09 → 2026-07trailblazer-2021-shift-to-park-fault
  • 11696558 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
  • 11624902 The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while the gear shifter was in the park(P), the message “Shift to Park” was displayed
  • 11627293 This vehicle has approximately 35,000 miles of driving time on the odometer. This car will not recognize that the shift lever has been place into the Park position. Doors will not lock when the car is turned off
Reduced engine power from turbocharger failureENGINE16 complaints2024-03 → 2026-07trailblazer-2021-turbo-power-loss
  • 11598264 Turbo failure resulted in loss of engine power. I was driving down the road and the engine light came on and I got a notification that the engine was in reduced power mode. The vehicle became very sluggish and lost speed
  • 11640587 On numerous occasions (typically when needing to accelerate into the flow of traffic), the Reduced Engine Power message and engine light came on, the car rapidly decelerated to 35 mph, and would not accelerate rapidly
  • 11751316 Reduced engine powers caused by turbo charger underboost, at 91200 miles
Brake squeal and popping noise through speakersSERVICE BRAKES10 complaints2020-11 → 2023-09trailblazer-2021-brake-squeal-pop
  • 11515304 We purchased this 2021 Chevrolet Trailblazer RS new from the dealership and we noticed on the second day of owership that the brakes were "squealing". The dealership initially inspected the vehicle asap and without having to go through the service department
  • 11374603 WHEN PARKING OR ABOUT TO MOVE AND YOU PUT FOOT ON BRAKE AND GET INTO A GEAR A LOUD AUDIBLE POPPING NOISE COMES THROUGH THE STEREO SYSTEM. IT IS VERY LOUD AND NOT BASED ON HOW LOW OR HIGH THE VOLUME OF THE STEREO IS SET
  • 11441763 Brakes squeal when in drive. Any amount of pressure on the brakes the car shakes and a loud squeal begins. Bought the car new in May and this issue started in June
Infotainment and backup camera system failureELECTRICAL SYSTEM10 complaints2020-09 → 2026-07trailblazer-2021-infotainment-camera
  • 11561456 The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while operating the vehicle at night, while reversing the vehicle, the back-up camera image became extremely bright creating a visibility hazard for the driver
  • 11490863 Shortly after purchasing my trailblazer in 2020 I noticed a glitch in the speakers where it would make a crackling noise (mainly when the car is off)
  • 11384075 THEIRS A DELAY ON BACKUP CAMERA.ALSO ON ANDROID PLAY IT SHUTS OF AND ON ON THE SCREEN
CVT delayed engagement and unexpected stallPOWER TRAIN, ENGINE7 complaints2023-03 → 2026-07trailblazer-2021-cvt-delayed-engagement
  • 11750836 Vehicle has 67,000 miles and suffered a catastrophic CVT transmission failure, documented by dealership diagnostic code P2714. The transmission severely slips and exhibits a dangerous 15-second delay to engage forward gear after shifting into Drive
  • 11734472 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
  • 11693768 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
Sudden loss of brake stopping powerSERVICE BRAKES14 complaints2020-09 → 2026-06trailblazer-2021-brake-failure
  • 11722954 The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving approximately 70 MPH, the brakes became inoperative. The message "Brake Failure - Speed Reduced to 53 MPH – Service Required" was displayed on the instrument panel
  • 11643617 A loud popping noise heard through the radio when light pressure applied to brakes. Noise loud enough to scare the hell out of all the occupants in the car. Brakes squeaked when car was in reverse
  • 11599338 The brake pedal goes to the floor and does not want to stop. There is a brake failure meesage on the dash
Fuel rail leak with gasoline odorFUEL/PROPULSION SYSTEM6 complaints2022-01 → 2024-08trailblazer-2021-fuel-rail-leak
  • 11512267 Took to mechanic due to strong fuel smell coming from engine area. Mechanic said not safe to drive - fuel rail leaking and must be replaced - vehicle could catch fire or explode!
  • 11516298 The contact owns a 2021 Chevrolet Trailblazer. The contact stated that while driving at various speeds, an abnormal fuel odor was coming from the vehicle, without warning
  • 11449335 I had a smell of gasoline inside and under hood of 2021 Trailblazer LT 1.3l. Took to Chevrolet dealer.Confirmed gas odor. Gas was leaking from fuel rail.Sevice manager said it was pouring out

NHTSA complaints (summary) all years →

countearliest_datelatest_datecrash_flaggedfire_flaggedtop_components
1932020-09-132026-09-1573UNKNOWN OR OTHER:54; ELECTRICAL SYSTEM:41; POWER TRAIN:40; ENGINE:38; SERVICE BRAKES:31

Recalls all years →

campaign_numberreport_received_datecomponentsummaryconsequenceremedy
20V53700003/09/2020SEATS:CRITICAL FASTENERSGeneral 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.If an occupied front seat is missing the rear attachment bolts, it may move during a crash, increasing risk of injury to the occupant.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.
20V29500021/05/2020TIRESGeneral 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."If drivers are uninformed and overinflate or underinflate their tires, this may increase the risk of a crash.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.
20V58800024/09/2020SERVICE BRAKESGeneral 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.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.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.
21V44000010/06/2021EQUIPMENT:MECHANICAL:ACCESSORY SCISSOR/SCREW/BOTTLE JACK/LIFT:STANDGeneral 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.A fractured jack can cause the vehicle to collapse, increasing the risk of injury.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.

Investigations all years →

none listed

FARS occupant deaths all years →

crash_yearsoccupant_deathsmatch_typevpic_recovered
2010-202413legacy-code13

FARS counts every occupant death in a fatal crash, whatever the cause — it does not mean the vehicle was at fault or defective. Counts are not adjusted for how many of each vehicle are on the road.

Cite this

Derived data is CC BY 4.0. Link back to the page you used. Text and BibTeX below.

Wrench.Pro (2026). 2021 Chevrolet Trailblazer vehicle data [dataset]. https://www.wrench.pro/data/vehicles/2021/chevrolet/trailblazer
@misc{wrenchpro_2021_chevrolet_trailblazer_2026,
  author = {Wrench.Pro},
  title = {Wrench.Pro vehicle data: 2021 Chevrolet Trailblazer},
  year = {2026},
  howpublished = {\url{https://www.wrench.pro/data/vehicles/2021/chevrolet/trailblazer}},
  note = {Derived from NHTSA public records. CC BY 4.0.}
}

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