Actions Taken When the DTC Sets

WARNING: This page is about a different car, the 2022 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

When DTC B1996 11 and B1996 10 sets, the left low beam headlamp will be inoperative.
When DTC B1996 12 the left low beams will always be ON.
When DTC B1997 11 and B1997 10 sets, the right low beam headlamp will be inoperative.
When DTC B1997 12 the right low beams will always be ON.