OnStar

See also:

Interior
The DTS can hold either five or six occupants, with a choice of front bucket seats or a front bench. Compared with the DeVille, the instrument panel has been lowered and moved forward. A new analo ...

End a Call
Push . System responds: “Call ended.” ...

When to Add Engine Oil
If the oil is below the cross-hatched area at the tip of the dipstick, add 1 L (1 qt) of the recommended oil and then recheck the level. See “Selecting the Right Engine Oil” in this section for an e ...