Conditions for Running the DTC
WARNING: This page is about a different car, the 2019 Buick Cascada, 2018 Buick Cascada, and 2017 Buick Cascada. However, it is still accessible from the selected car via links, so may be relevant.
Battery voltage must be between 9-16 V.
DTC B3883 01
Headlamp switch in OFF position.
DTC B3883 02 or B3883 04
Headlamp switch in AUTO, PARK or ON positions.