Wiper Activated Headlamps (if equipped)

If equipped with automatic headlamps, the SCCM  sends a message to the BCM  over the HS-CAN  to illuminate the exterior lamps within 10 seconds of the windshield wipers being activated by the wiper/washer switch when the headlamp control switch is in the AUTOLAMP position. The BCM  continues to illuminate the exterior lamps for approximately 30 seconds after the windshield wipers have been turned off.

If equipped with rain sensitive wipers (feature must be enabled through the message center) and the wiper/washer switch is in one of the 5 auto/intermittent settings, the SCCM  sends a message to the BCM  over the HS-CAN  to illuminate the exterior lamps within 30 seconds of the windshield wipers being activated by moisture detected on the windshield when the headlamp control switch is in the AUTOLAMP position. The BCM  continues to illuminate the exterior lamps for approximately 60 seconds after the windshield wipers have been deactivated (moisture no longer detected on the windshield).