GM Authority

GM Issues Fix For C8 Corvette Transmission Control Module Communication Loss

General Motors has issued a service update to address a problem related to the Transmission Control Module in certain examples of the 2020 and 2021 model-year C8 Corvette Stingray. The problem: in ...
GM Authority

C8 Chevy Corvette Recalled For Transmission Control Module Issue

GM has issued a voluntary emission recall for certain units of the 2020 and 2021 C8 Corvette Stingray due to a problem with the Transmission Control Module (TCM). The problem: Affected TCM’s may ...

Can the check engine light come on for transmission issues?

While your check engine light is obviously meant for engine issues, it can often give you clues to problems in other parts of ...
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Check engine light can signal transmission problems

Modern vehicles’ onboard diagnostic systems can trigger the check engine light for transmission faults, not just engine problems. Issues like overheating gearboxes, faulty control modules, or speed ...