Actions Taken When the DTC Sets
WARNING: This page is about a different car, the 2010 GMC Sierra, 2010 GMC Cab & Chassis Sierra, 2010 Chevrolet Silverado, and 2010 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
- Automatic lamp control (ALC) is inoperative.
- The BCM defaults to low light status and commands the low beam headlamps ON.