High Mounted Stop Lamp (HMSL)
WARNING: This page is about a different car, the 2018 Jaguar XE and 2017 Jaguar XE. However, it is still accessible from the selected car via links, so may be relevant.
The HMSL is located on the top of the luggage compartment lid.
The lamp comprises a plastic housing with a red colored lens. The lamp is illuminated by LEDs.
The HMSL is activated, along with the tail lamp stop lamps, when the ignition is in power mode 6 or above and the brake pedal switch is active (by pressing the brake pedal).
The HMSL and the stop lamps can also be activated by the ABS when ARPC is active (if equipped). A signal on the HS CAN chassis systems bus from the ABS control module is passed to the BCM/GWM assembly which supplies power to the stop lamps.