Cadillac 2012 CTS Owner's Manual page 286

9-36 Driving and Operating
draining the battery, do not operate
the EPB too often without the
engine running.
The system has two warning lights
and five Driver Information Center
(DIC) messages. See
for more information. In
case of insufficient electrical power,
the EPB cannot be applied or
released.
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. While the brake is
being applied, the status light will
flash until full apply is reached.
If the light does not come on,
or remains flashing, you need to
have the vehicle serviced. Do not
drive the vehicle if the BRAKE light
is flashing. See your dealer. See
for more information.
If the EPB is applied while the
vehicle is in motion, a chime will
sound, and the DIC message
and 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 continuously,
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
continuously, release the EPB, and
attempt to apply it again. If this light
continues to flash, do not drive the
vehicle. See your dealer.
If the yellow 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 yellow light is
on, see your dealer.
If the EPB fails to apply, the rear
wheels should be blocked to
prevent vehicle movement.
EPB Release
To release the EPB, turn the ignition
switch to the ON/RUN position,
apply and hold the brake pedal, and
push down momentarily on the EPB
switch. If you attempt to release
the EPB without the brake pedal
applied, a chime will sound, and the