See also:

If Steam Is Coming from the Engine Compartment
See Overheated Engine Protection Operating Mode for information on driving to a safe place in an emergency. ...

Engine Oil Additives
Do not add anything to the oil. The recommended oils with the starburst symbol that meet GM Standard GM6094M are all you will need for good performance and engine protection. ...

OnStar® System
OnStar® uses several innovative technologies and live advisors to provide you with a wide range of safety, security, information, and convenience services. If your airbags deploy, the system is ...