GMC TSB #RFI20201207_599-
2007 GMC Sierra 3500
Affected Component: ELECTRICAL SYSTEM
- Summary
- This SKU is a Climate Control Module. The customer communication requested return of unsold inventory to inspect for a software issue. If the software issue exists it can cause a fan in the climate control system to stay on even when the ignition is turned off. The fan staying on even though the ignition is off can drain the battery, making the vehicle unable to start.