Circuit/System Description

WARNING: This page is about a different car, the 2018 Buick Envision. However, it is still accessible from the selected car via links, so may be relevant.

The lane departure warning is enabled and disabled through the lane departure warning switch. When enabled, the frontview camera module will illuminate the indicator located in the switch. For the exact location of the lane departure warning switch, refer to the Owner's Manual.

For vehicles without UGN, the indicator and switch are connected to the frontview camera module and the system operates as a stand-alone feature.

With UGN, the indicator and switch are connected to the active safety control module. The active safety control module receives input from several modules including the frontview camera module to provide additional features. Refer to Lane Departure Warning Description and Operation for additional information on UGN. The lane departure alerts and DTCs are set by the frontview camera module with the exception of the indicator DTCs, which are set by the active safety control module. There are no switch DTCs for vehicles with the active safety control module.