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:
Protecting Exterior Bright Metal Parts
Regularly clean bright metal parts with water or chrome polish on chrome or stainless steel trim, if necessary.
For aluminum, never use auto or chrome polish, steam, or caustic soap to clean. A coati ...
Privacy
The complete OnStar Privacy Statement may be found at www.onstar.com. Privacy-sensitive
users of wireless communications are cautioned that the privacy of any information
sent via wireless cellula ...
Overview
The GMC Sierra All Terrain HD concept is an exploration of heavy-duty truck
capability combined with greater off-road versatility. It is highlighted by a
bold exterior design, enhanced all-terrain ...





