Front Axle - GMC 2009 Yukon XL Owner's Manual

When to Change Lubricant
Refer to the Maintenance Schedule to determine how
often to change the lubricant. See Scheduled
Maintenance on page 6-4.
What to Use
Refer to the Maintenance Schedule to determine what
kind of lubricant to use. See Recommended Fluids
and Lubricants on page 6-13.

Front Axle

When to Check and Change Lubricant
It is not necessary to regularly check front axle fluid
unless you suspect there is a leak or you hear an
unusual noise. A fluid loss could indicate a problem.
Have it inspected and repaired.
5-52
How to Check Lubricant
To get an accurate reading, the vehicle should be on a
level surface.
1500 Series
A: Fill Plug
B: Drain Plug