GMC 2007 Envoy - Manual (Page 207)

{ 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.
Anti-Lock Brake System
Warning Light
With the Anti-Lock
Brake System (ABS),
this light will come
on when you start your
engine and may
stay on for several
seconds, that is normal.
A chime may also sound when the light comes on.
If the light stays on, or comes on when 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 anti-lock brakes. If the
regular brake system warning light is also on, you
do not have anti-lock brakes and there is a problem
with your regular brakes. See Brake System
Warning Light on page 206 earlier in this section.
The ABS warning light should come on briefly
when you turn the ignition key to RUN. If the light
does not come on then, have it fixed so it will
be ready to warn you if there is a problem.
StabiliTrak ® Service Light
This light will come on
briefly when the engine
is started.
This light will come on if a problem is detected in
the StabiliTrak
® system.
For more information see StabiliTrak ® System on
page 309.
207