OnStar Additional Information
IntroductionStarting the Engine
Place the transmission in the proper gear.
Notice: If you add electrical parts or accessories, you could change
the way the engine operates. Any resulting damage would not be covered by the vehicle
warranty.
Automatic Transmission
Move the shift lever to P (Park) or N (Neutral). The engine wi ...
Towing the Vehicle
Notice: Incorrectly towing a disabled vehicle may cause damage. The
damage would not be covered by the vehicle warranty. Do not lash or hook to the
chassis components including the front and rear subframes, suspension control arms
and links during towing and recovery of a disabled vehicle or t ...
Low-Profile Tires
If the vehicle has P225/45R18 size tires, they are classified as low‐profile
tires. These tires are designed for very responsive driving on wet or dry pavement,
however, may produce more road noise and tend to wear faster.
Notice: Low-profile tires are more susceptible to damage from road ...