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:
How to Wear Safety Belts Properly
This section is only for people of adult size.
Be aware that there are special things to know about
safety belts and children. And there are different
rules for smaller children and infants. If a ...
OnStar Personal Identification
Number (PIN)
A PIN is needed to access some of
the OnStar services, like Remote
Door Unlock and Stolen Vehicle
Assistance. You will be prompted to
change the PIN the first time when
speaking with an Advi ...
Memory Seats
Memory Seats
On vehicles with the memory
feature, the “1” and “2” buttons on
the outboard side of the driver seat
are used to manually save and
recall the driver seat and outside
...
