C8 Chevy Corvette Recalled For Transmission Control Module Issue4
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 incorrectly clear the loss of communications Diagnostic Trouble Codes (DTCs) when the vehicle is keyed off after detecting a loss of communications with other control modules.
The hazards: If the loss of communications fault persists, the TCM may not detect it again even after the vehicle is keyed back on. If this happens, the transmission could operate in a default mode with no DTC set and the malfunction indicator lamp not illuminated.
The fix: certified GM technicians will be instructed to inspect affected vehicles and reprogram the TCMS with updated software as needed. It should take techs less than one hour to complete the recall.
Affected components: Transmission Control Module (TCM).
- 2020 Corvette Stingray
- 2021 Corvette Stingray
Number of affected vehicles: As of the time of this writing, GM did not clarify the number of Corvette units affected by this recall.
Owners should: GM will notify owners of affected vehicles and instruct them to make an appointment with their dealer. Any owners that are unsure whether or not their vehicle is affected by this recall can visit my.gm.com/recalls and type in their VIN to see any open recalls or other actions that may be active on it. Owners can also reach out to Chevy or the National Highway Traffic Safety Administration (NHTSA) directly with any questions or concerns they may have using the recall number and contact information included below.
- GM recall number: N212336962
- Chevy Customer Service: 1-800-222-1020
- NHTSA (toll-free number): 1-888-327-4236
As a reminder, the C8 Corvette Stingray is powered by the naturally aspirated 6.2L V8 LT2 gasoline engine, which is rated at 490 horsepower and 470 pound-feet of torque.
Under the skin, the Stingray rides on the GM Y2 platform, which underpins all C8 Corvette variants. Production takes place exclusively at the GM Bowling Green plant in Kentucky.
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I just checked my VIN for a 2021 Z51 Stingray delivered in March 2021, built 3rd or 4th week of Feb 2021.
No Recall for Me!
Since getting this car I purchased a new OBD reader that can deep-dive into the TCM Transmission module and brake system, and can
email the results to me. I really like my new reader and I am sure will be a big plus down the road.
2 years in since taking delivery. 13,000 miles. And so happy with this car.
And by being a member of a nationally sanctioned Corvette Club that is a member of the NCCC National Council of Corvette Clubs.
Which OBD reader did you purchase?
No recall on file for my September 2020 build.
No recalls for my 2020 made aprox late Nov 2020.