ID: #24V797000
MFR: General Motors, LLC
Component
POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE
What Happened
Your vehicle has a problem with the software that controls the transmission. Specifically, the transmission control valve may fail.
Risk if Unfixed
If the transmission control valve fails, your rear wheels could lock up, which could increase the risk of a crash.
Free Fix
You'll need to take your vehicle to the dealership, where they'll update the transmission control module software for free. They'll also check the transmission to see if it needs to be repaired under a special program, and if so, they'll fix it for free too.