See also:

Radio Messages for XM™ Only
See XM Radio Messages later in this section for further detail. ...

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

Additional Required Services
Every 12 000 km/7,500 Miles ► Rotate tires. Tires should be rotated every 12 000 km/ 7,500 miles. See Tire Rotation . At Each Fuel Stop ► Engine oil level check. See Engine Oil . ...