Battery; All-Wheel Drive; Four-Wheel Drive; Front Axle - GMC 2011 Sierra Denali Owner's Manual

10-28 Vehicle Care

Battery

Refer to the replacement number
shown on the original battery label
when a new battery is needed.
See Engine Compartment Overview
on page 10 6 for battery location.
DANGER
Battery posts, terminals, and
related accessories contain lead
and lead compounds, chemicals
known to the State of California to
cause cancer and reproductive
harm. Wash hands after handling.
Vehicle Storage
WARNING
Batteries have acid that can burn
you and gas that can explode.
You can be badly hurt if you are
not careful. See Jump Starting on
page 10 82 for tips on working
around a battery without
getting hurt.
Infrequent Usage: Remove the
black, negative ( ) cable from the
battery to keep the battery from
running down.
Extended Storage: Remove the
black, negative ( ) cable from the
battery or use a battery trickle
charger.

All-Wheel Drive

It is not necessary to regularly
check the transfer case fluid unless
there is a leak suspected or an
unusual noise is heard. A fluid loss
could indicate a problem. Have it
inspected and repaired by your
dealer.

Four-Wheel Drive

It is not necessary to regularly
check the transfer case fluid unless
there is a leak suspected or an
unusual noise is heard. A fluid loss
could indicate a problem. Have it
inspected and repaired by your
dealer.

Front Axle

It is not necessary to regularly
check the front axle fluid unless
there is a leak suspected or an
unusual noise is heard. A fluid loss
could indicate a problem. Have it
inspected and repaired by your
dealer.