Actions Taken When the DTC Sets
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.
DTC B3948
- The left front turn signal lamp and left turn signal repeater lamp are inoperative.
- The left turn signal indicator on the instrument panel cluster flashes rapidly.
- The driver information center displays "Check Left Front Turn Signal Lamp."
DTC B3949
- The right front turn signal lamp and right turn signal repeater lamp are inoperative.
- The right turn signal indicator on the instrument panel cluster flashes rapidly.
- The driver information center displays "Check Right Front Turn Signal Lamp."