Parking Lamp: Description and Operation

BATTERY PROTECTION: "PARK & HEADLAMPS"
This feature provides a battery protection scheme to avoid wearing down the battery if the customer leaves the parklamps or headlamps ON for extended periods of time with the ignition OFF. If the parklamp or headlamp switch remains in the active position for more than 3 minutes, while the ignition is OFF, the parklamps and or headlamps will be turned OFF and the input causing the lamps to be ON will be ignored. Once the 3 minute timeout has elapsed the BCM will enter sleep mode. Any change in any inputs monitored by the BCM that brings the BCM out of sleep mode, will reset the 3 minute timer (door lock/unlock), door ajar, ignition, RKE actuation, etc.).

Leaving the ignition switch in an active position (steering column unlocked, ignition on or accessory power on) will inhibit the battery protection routine from turning off the exterior lamps as described above.