See also:

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

Online Owner Center
Online Owner Center (United States only) The Owner Center is a resource for your GM ownership needs. Specific vehicle information can be found in one place. The Online Owner Center allows you to: ...

Rainsense™ II Wipers
If the vehicle has this feature, the moisture sensor is mounted on the interior of the windshield beside the rearview mirror and is used to automatically operate the wipers. This system operates ...