Hummer 2006 H3 - Manual (Page 156)

Brake System Warning Light
Your vehicle’s hydraulic brake system is divided into
two parts. If one part is not working, the other part can
still work and stop you. For good braking, though,
you need both parts working well.
If the warning light comes on, there could be a brake
problem. Have your brake system inspected right away.
This light should come on briefly when you turn the
ignition key to ON. If it does not come on then, have
it fixed so it will be ready to warn you if there is a
problem.
When the ignition is on, the brake system warning light
will also come on when you set your parking brake.
See Parking Brake on page 2-27 for more information.
The light will stay on if your parking brake does not
release fully. If it stays on after your parking brake is
fully released, it means you have a brake problem.
If the light comes on while you are driving, pull off the
road and stop carefully. You may notice that the pedal
is harder to push, or the pedal 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 4-56.
{ 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.
United States Canada
3-32