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:
Exterior Lamp Controls
The exterior lamp control is located on the instrument panel on the outboard side of the steering wheel.
Turn the control to the following positions:
(Off): Turns off the exterior lamps. The ...
Listing All Paired and Connected Phones
1. Press
.
► For vehicles without a navigation system, the system responds “Ready,” followed by a tone.
► For vehicles with a navigation system, the system responds with a tone. Aft ...
OnStar® Services
For new vehicles equipped with OnStar®, the Safe
& Sound Plan, or the Directions & Connections®
Plan is included for one year from the date of
purchase. You can extend this plan beyond th ...
