Pontiac 2006 Grand Prix - Manual (Page 161)

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
release fully. If it stays on after the parking brake is fully
released, it means the vehicle has a brake problem.
The PARKING BRAKE ON message will also appear in
the Driver Information Center (DIC) when the parking
brake is set and the vehicle is going faster than 5 mph.
See DIC Warnings and Messages on page 3-72 for
more information.
The brake warning light may also come on when the
brake fluid is low. If this occurs, the LOW BRAKE FLUID
message will also appear in the Driver Information
Center (DIC). See DIC Warnings and Messages
on page 3-72 for more information.
If the brake warning light comes on while the vehicle is
being driven, pull off the road and stop carefully.
The brake pedal may be harder to push, or it may go
closer to the floor. It may also take the vehicle longer to
stop. If the light is still on, have the vehicle towed for
service. See Towing Your Vehicle on page 4-38.
{ CAUTION:
Your brake system may not be working
properly if the brake system warning light is on.
Driving with the brake system warning light on
can lead to an accident. If the light is still on
after you have pulled off the road and stopped
carefully, have the vehicle towed for service.
3-43