Hummer 2008 H2 - Manual (Page 189)

{ 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.
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 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 4-51.
Antilock Brake System
Warning Light
For vehicles with
the Antilock Brake
System (ABS), this
light will come on
briefly when you
start the engine.
That is normal. If the light does not come on then,
have it fixed so it will be ready to warn you if there
is a problem.
If the ABS light stays on, turn the ignition off, if the light
comes on when you are driving, stop as soon as it is
safely possible and turn the ignition off. Then start the
engine again to reset the system. If the ABS light still
stays on, or comes on again while you are driving,
your vehicle needs service. If the regular brake system
warning light is not on, you still have brakes, but you do
not have antilock brakes. If the regular brake system
warning light is also on, you do not have antilock
brakes and there is a problem with your regular brakes.
See Brake System Warning Light on page 3-38
For vehicles with a Driver Information Center (DIC),
see DIC Warnings and Messages on page 3-56 for
all brake related DIC messages.
3-39