See also:

Other Navigation Services Available from OnStar
OnStar eNav: Allows subscribers to send destinations from Google Maps and MapQuest.com to their Turn-by-Turn Navigation or screen-based navigation system. When ready, the directions will be downlo ...

Transmission Messages
DIFFERENTIAL HOT, REDUCE SPEED (CTS-V ONLY) This message displays and a chime sounds if the differential fluid temperature exceeds 150°C (300°F). Driving aggressively or at high speeds can ...

Airbag Readiness Light
This light shows if there is an electrical problem with the airbag system. The system check includes the airbag sensor(s), passenger sensing system, the pretensioners, the airbag modules, th ...