OnStar Services
See also:
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 ...
Current and Past Models
Technical Service Bulletins and
Manuals are available for current
and past model GM vehicles.
ORDER TOLL FREE:
1-800-551-4123 Monday – Friday
8:00 AM – 6:00 PM Eastern Time
For Credit Card Or ...
Tires
Every new GM vehicle has high-quality tires made by a leading tire
manufacturer.
See the warranty manual for information regarding the tire warranty and
where to get service. For additional infor ...






