Park Brake Warning
WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The radio activates the park brake audible warning as requested by the body control module (BCM). The BCM sends a serial data message to the radio indicating the chime frequency and duration. The park brake warning sounds and the brake indicator illuminates when the following occurs:
- The ignition is ON.
- The vehicle speed is greater than 5 km/h (3.1 mph). The BCM receives a serial data message from the engine control module (ECM) indicating the vehicle speed.
- The BCM determines that the park brake is engaged.