High Temperature RECLAMP
After heavy use of the brakes, the disc temperatures can be extremely high. At high brake disc temperatures, if the vehicle is stationary and the EPB is applied, the ABS control module automatically reapplies the EPB as the brake discs cool down. A temperature model in the ABS control module software calculates the brake disc temperature from the brake application force, the time intervals the brake force is applied and vehicle's speed.
High temperature reclamp occurs at brake disc temperatures of 250 °C (482 °F) and above, or at any temperature when the vehicle is parked on a 20% or steeper slope. Depending on the temperature and inclination, up to three reclamps can occur, at varying time intervals, in the 10 minutes following the initial application of the EPB. To limit the number of reclamps, the ignition status as well as the current inclination of the vehicle is considered.