Liftgate Release

The BCM sends a voltage signal to the exterior liftgate release switch. When the liftgate release switch is pressed, the voltage signal is routed to ground, indicating a request to release the liftgate latch. The BCM momentarily provides voltage to the liftgate latch to actuate the release motor.

The BCM also receives input from the headlamp switch for the interior liftgate release switch (integrated into the headlamp switch). When the switch is pressed, the headlamp switch sends the request over a LIN to the BCM. The BCM momentarily provides voltage to the liftgate latch to actuate the release motor.

The BCM releases the liftgate only when the doors are electronically unlocked and the vehicle is in PARK when a request is detected from the liftgate release switch.

The liftgate can also be released with a programmed RKE transmitter if the vehicle speed is 7 km/h (4.3 mph) or less.