Pontiac G3 2009 Owner's Manual page 145

United States
CAUTION:
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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.
This light should come on briefly when the ignition is
turned to ON. 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
will also come on when the parking brake is set.
The light will stay on if the parking brake does not fully
release. If it stays on after the parking brake is fully
released, it means there is a brake problem.
Canada
If the light comes on while driving, carefully pull off the
road and stop. The pedal may be harder to push or
may go closer to the floor. It may take longer to stop.
If the light is still on, have the vehicle towed for service.
See Towing Your Vehicle on page 4-28.
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