General Motors has announced a new Customer Satisfaction Program for certain examples of the 2021 model year Chevy Silverado 1500 and GMC Sierra 1500 to replace the eight-speed automatic transmissions in the vehicles.
The hazards: a reaction carrier is part of the transmission rotating assembly and is an important aspect of its operation. A broken reaction carrier could prevent the transmission from operating as intended. This problem does not pose an immediate safety hazard to vehicle occupants.
The fix: dealers will replace the entire eight-speed automatic transmission with a new one. These repairs will be performed at no cost to the vehicle owner.
Affected components: reaction carrier, eight-speed automatic transmission.
- 2021 Chevy Silverado 1500 (with GM eight-speed automatic transmission)
- 2021 GMC Sierra 1500 (with GM eight-speed automatic transmission)
Next steps: GM will notify owners of affected vehicles and instruct them to make an appointment with their dealership. Owners can also use the contact information below to reach out to Chevy or GMC customer service with any questions or concerns they may have.
Vehicles involved in this Customer Satisfaction Program were placed under a stop-sale order on February 8th, 2021. These vehicles will be released from stop sale/stop delivery status once the repairs contained in the bulletin have been performed. This Customer Satisfaction Program will remain in effect until March 31st, 2023, after which point the repairs in the bulletin will not be made to affected vehicles.
- GM Customer Satisfaction Program number: N212328090
- Chevrolet Customer Service: 1-800-222-1020
- GMC Customer Service: 1-800-462-8782