Battery Saver

To save battery voltage, the Body Control Module (BCM) provides automatic shut-off of the interior and exterior lamps after a time-out period when the ignition is off. The Body Control Module (BCM) monitors the ignition state and input from the Remote Keyless Entry (RKE) system to determine when to energize or de-energize the battery saver relay and to shut the power off to the lamps. A timer in the Body Control Module (BCM) starts when:

• the ignition changes to OFF,
• any door or liftgate becomes ajar while the ignition is off,
• an UNLOCK button of the Remote Keyless Entry (RKE) transmitter is pressed while the ignition is off,
• a valid keypad code is entered while the ignition is off,
• or the courtesy lamp switch (integrated into the Front Lighting Control Module (FLM)) is used to turn the courtesy lamps on while the ignition is off.

When 10 minutes have elapsed, the Body Control Module (BCM) automatically shuts off voltage to the lamps. The timer restarts (voltage is restored if the Body Control Module (BCM) is in battery saver mode) if:

• the ignition transitions out of OFF,
• any door or liftgate becomes ajar,
• the UNLOCK button of the Remote Keyless Entry (RKE) transmitter is pressed,
• a valid keypad code is entered,
• the courtesy lamp switch is pressed.