Cadillac 2013 Caddilac CTS Owner's Manual page 144

5-22 Instruments and Controls
Metric
This light should come on briefly
when the ignition is placed in ON/
RUN. If it does not come on then,
have it fixed so it will be ready to
warn if there is a problem.
When the ignition is on, the brake
system warning light also comes on
when the parking brake is set.
The light flashes or stays on if the
parking brake is not fully released.
If the light stays on after the parking
brake is fully released, there is a
base brake problem.
The brake system might not be
working properly if the brake
system warning light is on.
Driving with the brake system
English
warning light on can lead to a
crash. If the light is still on after
the vehicle has been pulled off
the road and carefully stopped,
have the vehicle towed for
service.
For vehicles with the Electric
Parking Brake (EPB), this red brake
status light comes on when the
parking brake is applied. If the light
continues flashing after the parking
brake is released, or while driving,
there is a problem with the Electric
Parking Brake system.
If the light does not come on,
or remains flashing, see your dealer.
WARNING
For vehicles with the Electric
Parking Brake (EPB), this parking
brake warning light should come on
briefly when ignition is placed in ON/
RUN. If it does not come on then,
have it fixed so it will be ready to
warn if there is a problem.
If this parking brake light comes on,
there is a problem with a system on
the vehicle that is causing the
parking brake system to work at a
reduced level. The vehicle can still
be driven, but should be taken to a
dealer
See Brake Assist (Except CTS-V)
on page 9 36 for more information.