2009 Cadillac CTS Owner's Manual - Page 124

EPB Apply The EPB can be applied any time the vehicle is stopped. The EPB is applied by momentarily lifting up on the EPB switch. Once fully applied, the BRAKE light will be on, and the DIC message "Park Brake Set" will be displayed. If the light does not come on, or is flashing, you need to have the vehicle serviced. Do not drive the vehicle if the BRAKE light is flashing. See your dealer/retailer. See Brake System Warning Light on page 3-38 for more information. If the EPB is applied while the vehicle is in motion, a chime will sound, and the DIC message "Release Park Brake Switch" will be displayed. The vehicle will decelerate as long as the switch is held in the up position. Releasing the EPB switch during the deceleration will release the parking brake. If the switch is held in the up position until the vehicle comes to a stop, the EPB will remain applied. If the BRAKE light is on, either the EPB is applied, or there is a failure in the hydraulic brake system. If this light is flashing, the EPB is only partially applied or released, or there is a problem with the EPB. The DIC message "Service Park Brake" will be displayed. If this light is flashing, release the EPB, and attempt to apply it again. If this light continues to flash, do not drive the vehicle. See your dealer/retailer. If the Y light is on, the EPB has detected an error in another system and is operating with reduced functionality. To apply the EPB when this light is on, lift up on the EPB switch and hold it in the up position. Full application of the parking brake by the EPB system may take a longer period of time than normal when this light is on. Continue to hold the switch until the BRAKE light remains on. If the Y light is on, see your dealer/retailer. If the EPB fails to apply, the rear wheels should be blocked to prevent vehicle movement. 2-46