GMC 2007 Canyon - Manual (Page 359)

Rear Axle
When to Check and Change Lubricant
It is not necessary to regularly check rear 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.
How to Check Lubricant
To get an accurate reading, the vehicle should be
on a level surface.
The proper level is from 0 to 3/8 inch
(0 mm to 10 mm) below the bottom of the
filler plug hole, located on the rear axle.
What to Use
See Recommended Fluids and Lubricants on
page 447 to determine which kind of lubricant
to use.
Four-Wheel Drive
Lubricant checks in this section apply to this
vehicle. There are two additional systems that
need lubrication.
Transfer Case
When to Check Lubricant
Refer to the Maintenance Schedule to determine
how often to check the lubricant. See Additional
Required Services on page 440.
How to Check Lubricant
To get an accurate reading, the vehicle should be
on a level surface.
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