GMC 2008 Acadia - Manual (Page 190)

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 3-47
For vehicles with a Driver Information Center (DIC),
see DIC Warnings and Messages on page 3-66 for
all brake related DIC messages.
StabiliTrak ® Indicator Light
This warning light should
come on briefly when
the engine is started.
If the warning light does not come on then, have it
fixed so it will be ready to warn you if there is a problem.
If it stays on, or comes on when you are driving,
there may be a problem with your StabiliTrak
® system
and your vehicle may need service. When this warning
light is on, the system is off and will not limit wheel
spin. Adjust your driving accordingly.
This light will also flash when the StabiliTrak ® system
is active.
If the StabiliTrak ® system warning light comes on
and stays on for an extended period of time when
the system is turned on, your vehicle needs service.
See StabiliTrak
® System on page 4-6 for more
information.
3-48