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

All Except 1500 Series
A. Fill Plug
B. Drain Plug
• When the differential is cold, add enough lubricant to raise the level from 0mm (0 in) to 3.2mm (1/8 in) below the fill plug hole.
• When the differential is at operating temperature (warm), add enough lubricant to raise the level to the bottom of the fill plug hole.
See also:
Using the “Delete All Name Tags” Command
This command deletes all stored name tags in the Hands-Free Calling Directory and the OnStar Turn-by-Turn Destinations Directory, if equipped.
To delete all name tags:
1. Press and hold for two sec ...
Tire Sidewall Labeling
Useful information about a tire is molded into its sidewall. The examples show
a typical passenger vehicle tire and a compact spare tire sidewall.
Passenger (P&-Metric) Tire Example
(A) Tire ...
Disconnecting the RVC
The rear vision camera must be disconnected if the tailgate needs to be removed.
To disconnect the camera:
1. Remove the license plate.
2. Disconnect the camera connectors from the chassis harness, ...





