The problem: the material used in a sensor connection in the electronic brake boost system in affected vehicles “may have been contaminated during the material supplier’s production process.” Contamination of the material can lead to an interruption of communication between the sensor and the brake boost system under certain conditions.
The hazards: if communication with the sensor is interrupted, the electronic brake boost assist could be lost. This can cause extra braking pedal force to be required to slow and stop the vehicle, thereby increasing the risk of a crash.
The fix: dealers will replace the entire electronic brake booster module in affected vehicles. These repairs will be performed at no cost to the vehicle owner.
Affected components: electronic brake boost module.
- 2020 Cadillac CT4
- 2020 Cadillac CT5
- 2021 Chevy Trailblazer
Owners should: GM will notify owners of affected vehicles and instruct them to make an appointment with their dealer. If owners are unsure whether or not their vehicle is affected by this recall, they can visit my.gm.com/recalls and type in their VIN to see any open recalls or other actions that may be active on their vehicle. The National Highway Traffic Safety Administration has yet to publish this recall on its website at this time, though we anticipate it will publish a communication with regard to the matter shortly.
- GM recall number: A202307261
- Chevrolet Customer Service: 1-800-222-1020
- Cadillac Customer Service: 1-800-333-4223
- NHTSA Toll Free Number: 1-888-327-4236
- NHTSA (TTY): 1-800-424-9153
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