GMC sierra 2002 Manuale Utente

With the anti

-

lock brake

system, this light will 
come on when you start
your engine and may stay
on for several seconds.
That’s normal.

If the light stays on, or comes on when you’re driving,
your vehicle needs service. If the regular brake system
warning light isn’t on, you still have brakes, but you
don’t have anti

-

lock brakes. If the regular brake system

warning light is also on, you don’t have anti

-

lock brakes

and there’s a problem with your regular brakes. See
“Brake System Warning Light” earlier in this section.

The anti

-

lock brake system warning light should come

on briefly when you turn the ignition key to RUN. If the
light doesn’t come on then, have it fixed so it will be
ready to warn you if there is a problem.

If you have the Traction
Assist System, this light
will come on when the
system is limiting wheel
spin. See “Traction Assist
System” in the Index.

You may feel or hear the system working or notice a
lack of accelerator response, but this is normal.

The LOW TRACTION light also comes on briefly when
you turn your ignition to RUN. If the light doesn’t come
on then, the system may require service; have it fixed so
it will be there to tell you when the traction system is
active. Slippery road conditions may exist if this light
comes on, so adjust your driving accordingly.