Brake System Warning Light - GMC Yukon Denali 2010 Manual

Brake System Warning Light

With the ignition in ON/RUN, the brake system warning
light comes on when the parking brake is set. If the
vehicle is driven with the parking brake engaged, a
chime sounds when the vehicle speed is greater than
5 mph (8 km/h).
The vehicle's hydraulic brake system is divided into
two parts. If one part is not working, the other part can
still work and stop the vehicle. For good braking,
though, both parts need to be working well.
If the warning light comes on and a chime sounds there
could be a brake problem. Have the brake system
inspected right away.
This light also comes on due to low brake fluid. See the
owner manual for more information.
United States
4-6
This light should come on briefly when the ignition key
is turned to 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 the light comes on while driving, pull off the road and
stop carefully. The pedal might be harder to push or can
go closer to the floor. It may take longer to stop. If the
light does not go out, have the vehicle towed for
service. See Towing Your Vehicle on page 5 2.
Canada
WARNING:
The brake system might not be working properly if
the brake system warning light is on. Driving with
the brake system 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.