2021 Chevrolet Trailblazer · Brakes
Braking performance may be reduced
Sensor connection contamination in the electronic brake boost system may cause an interruption of communication between the sensor and the brake boost system.
What the reviewed source says
Start with the documented condition, not a parts guess.
NHTSA campaign 20V588000 includes certain 2021 Chevrolet Trailblazer vehicles. 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. If communication with the sensor is interrupted, the electronic brake boost assist could be lost.
Words owners may use
Does this match the moment?
Symptoms in the pattern
- The driver may notice a warning, changed pedal feel or reduced braking, depending on the recalled component
- An open campaign appears when the complete VIN is checked
- Some recalled vehicles may show no advance warning before the component fails
Vehicles and scope
- 2021 Chevrolet Trailblazer
- NHTSA campaign 20V588000
- The manufacturer filing lists 3,677 potentially affected units across the complete campaign.
- VIN eligibility determines whether this recall applies to an individual vehicle
Manufacturer position
What the official procedure directs
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.
Safety recall eligibility is based on the VIN and campaign scope, not ordinary warranty mileage. Check the complete VIN even when the vehicle is outside its original warranty.
Original evidence
Open the documents behind this page.
Repair paths and safe checks
Separate the diagnosis from the action.
Use the official recall 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.
Do not buy parts from the campaign description alone. VIN scope, superseded remedies and parts availability can change.
What owners reported
Did this repair fix the same symptom on your car?
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Check the complete VIN before arranging work
Enter the 17-character VIN in NHTSA's recall lookup and ask the manufacturer or an authorised dealer to confirm whether the campaign is open for this vehicle.
A year, make and model match does not prove that every vehicle is included. The VIN result controls eligibility.
What owners reported
Did this repair fix the same symptom on your car?
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Useful before authorizing work
Read the method beside the problem
These guides explain the safety and evidence checks that apply to this problem file.
Check recalls by VIN
A VIN search checks the displayed NHTSA records for an unrepaired safety recall associated with one vehicle. A model search shows only the wider campaign population.
Read guide ↗When a car is unsafe
A warning light does not always mean the same thing, but weak brakes or smoke leave little room for experimentation. Damaged tires and certain recall instructions can do the same.
Read guide ↗Why symptoms overlap
“It makes a weird noise” is useful human language. Diagnosis begins when that language is tied to the exact vehicle and its operating conditions.
Read guide ↗More for this model
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2021 to 2022 Chevrolet Trailblazer · Vehicle information
Incorrect safety information or certification label
The emergency jack, if not positioned as directed in the vehicle owner's manual, can fracture while in use.
2021 Chevrolet Trailblazer · Vehicle information
Incorrect safety information or certification label
The certification label on these vehicles does not provide the tire size and cold tire pressure information for front and rear tires, as required.
2021 Chevrolet Trailblazer · Body & structure
Seat component may not remain secure
The rear attachment bolts of one or both front seats may not have been installed.