Four-Wheel Drive; Front Axle - GMC 2016 Yukon User Manual

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 -
North America 0 341 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
0 360 to determine when to check
the lubricant.
How to Check Lubricant
Automatic Transfer Case
1. Fill Plug
2. Drain Plug
To get an accurate reading, the
vehicle should be on a level
surface.
If the level is below the bottom of
the fill plug (1) hole, located on the
transfer case, some lubricant will
need to be added. Add enough
lubricant to raise the level to the
bottom of the fill plug (1) hole. Use
care not to overtighten the plug.
Vehicle Care
When to Change Lubricant
Refer to Maintenance Schedule
0 360 to determine how often to
change the lubricant.
What to Use
Refer to Recommended Fluids and
Lubricants 0 369 to determine what
kind of lubricant to use.

Front Axle

When to Check and Change
Lubricant
It is not necessary to regularly
check front axle fluid unless a leak
is suspected, or an unusual noise is
heard. A fluid loss could indicate a
problem. Have it inspected and
repaired.
How to Check Lubricant
To get an accurate reading, the
vehicle should be on a level
surface.
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