See also:

What to Use
Refer to Recommended Fluids and Lubricants on page 11‑12 to determine what kind of lubricant to use. ...

Warranty
OnStar equipment may be warranted as part of the new-vehicle limited warranty. The manufacturer of the vehicle furnishes detailed warranty information. ...

When to Check and Change Automatic Transmission Fluid
It is usually not necessary to check the transmission fluid level. The only reason for fluid loss is a transmission leak or overheated transmission. If a small leak is suspected, then use the followi ...