Park Brake Warning

The radio activates the park brake audible warning as requested by the driver integration module (DIM). The DIM sends a class 2 message to the radio indicating the chime frequency of a fast rate and at a continuous 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 DIM receives a class 2 message from the ECM indicating the vehicle speed.
• The DIM determines that the park brake is engaged and the signal circuit is low.