Black plate (32,1)
GMC Sierra Owner Manual - 2012
10-32
Vehicle Care
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
‑
92
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.
Four-Wheel Drive
Transfer Case
When to Check Lubricant
Refer to
Maintenance Schedule on
page 11
‑
3
to determine when to
check the lubricant.
How to Check Lubricant
Electric Shift Transfer Case
A. Fill Plug
B. Drain Plug
Manual Shift Transfer Case
A. Fill Plug
B. Drain Plug