Most drivers probably don't know what a transmission valve body is, but it's an important part of your car that needs to stay ...

Get all the news you need in your inbox each morning. To fix the issue, dealers will install a new transmission control module software free of charge and GM will provide a special coverage ...

They can do this by replacing the transmission control module. Additionally, they will offer repairs for vehicles that have defective transmission control valves. GM will notify impacted owners ...

To convince the transmission control module that a working automatic was still installed and clear the fourteen-odd diagnostic codes, [Dean] put together a block of eight common automotive relays.