Rear Axle
When to Check 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 to 10 mm) below the bottom of the filler plug hole, located on the rear axle.
What to Use
To determine what kind of lubricant to use.
See also:
Power Windows
Power Windows
Press the switch to lower the
window. Pull the switch up to
raise it.
The switches work when the ignition
is in ON/RUN or ACC/ACCESSORY, or in Retained
Accessory Power (RAP). ...
How to Inspect the Engine AirCleaner/Filter
To inspect the air cleaner/filter remove the filter
from the vehicle and lightly shake the filter to
release loose dust and dirt. If the filter remains
caked with dirt, a new filter is required.
...
Repair Facility
We recommend that you choose a collision repair facility
that meets your needs before you ever need collision
repairs. Your dealer/retailer may have a collision repair
center with GM-trained tec ...
