Brake System Warning Light - GMC 2010 Savana 1500 Cargo Owner's Manual

The vehicle can be only driven for a short time with the
reading in either warning zone. If it must be driven,
turn off all unnecessary accessories.
Readings in either warning zone indicate a possible
problem in the electrical system. Have the vehicle
serviced as soon as possible.

Brake System Warning Light

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,
both need to work.
If the warning light comes on, there could be a brake
problem. Have the brake system inspected right away.
United States
This light should come on briefly when ignition key is
turned to ON/RUN. If it does not come on, have it fixed
so it will be ready to warn if there is a problem.
4-28
When the ignition is on, the brake system warning light
also comes on when the parking brake is set. See
Parking Brake on page 3-35 for more information. The
light stays on if the parking brake does not fully release.
If it stays on after the parking brake is fully released,
it means the vehicle has a brake problem.
If the light comes on while driving, pull off the road and
stop carefully. The pedal might be harder to push, or
the pedal might go closer to the floor. It could take
longer to stop. If the light is still on, have the vehicle
towed for service. See Towing Your Vehicle on
page 5-22.
Canada
WARNING:
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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.