GMC 2012 GMC Sierra Denali, Owner'S Manual, Page: 431 / 502

Black plate (93,1)
GMC Sierra Denali Owner Manual - 2012 - 2nd - 11/10/11
Vehicle Care 10-93
7. Shift the transfer case to
N (Neutral). See “ Shifting into
Neutral ” under Four-Wheel Drive
on page 9 ‑ 39 for the proper
procedure to select the neutral
position for the vehicle.
8. Turn the ignition to LOCK/OFF.
9. Release the park brake.
After towing, see “ Shifting Out of
Neutral ” under Four-Wheel Drive on
page 9 ‑ 39 .
Appearance Care
Exterior Care
Washing the Vehicle
To preserve the vehicle's finish,
wash it often and out of direct
sunlight.
Notice: Do not use petroleum
based, acidic, or abrasive
cleaning agents as they can
damage the vehicle's paint, metal,
or plastic parts. If damage
occurs, it would not be covered
by the vehicle's warranty.
Approved cleaning products can
be obtained from your dealer.
Follow all manufacturer
directions regarding correct
product usage, necessary safety
precautions, and appropriate
disposal of any vehicle care
product.
Notice: Avoid using high
pressure washes closer than
30 cm (12 in) to the surface of the
vehicle. Use of power washers
exceeding 8,274 kPa (1,200 psi)
can result in damage or removal
of paint and decals.
Rinse the vehicle well, before
washing and after, to remove all
cleaning agents completely. If they
are allowed to dry on the surface,
they could stain.
Dry the finish with a soft, clean
chamois or an all-cotton towel to
avoid surface scratches and water
spotting.