ID: #24V839000
MFR: General Motors, LLC
SYSTEM_COMPONENT
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE
EVENT_SUMMARY
Your 2022-2023 Chevrolet Express or GMC Savana has a software issue in the transmission control module, which affects how the gears shift.
RISK_ASSESSMENT
If the problem isn't fixed, you could experience harsh shifting, reduced power, or even have your rear wheels lock up or the vehicle move unexpectedly, which can increase the risk of a crash.
RESOLUTION_PROTOCOL
We'll update the software for the transmission control module at no cost to you. You'll receive a letter with instructions, but you can also contact GM customer service at 1-888-988-7267 or your car's specific service line to schedule the fix.