GM has issued a recall for certain units of the 2021 and 2022 Chevy LCF 3500/4500 models due to an issue with improper Transmission Control Module programming.

Read the Chevy High-Performance tech article on How to Program an OBD-II Powertrain Control Module.

GM has begun a customer satisfaction program to address an issue with the transmission range control module in certain 2021 model year Chevy Bolt EV vehicles.

To fix the issue, dealers will install a new transmission control module software free of charge and GM will provide a special coverage program for repairing transmissions identified as containing a ...