OnStar Services

See also:

Ignition Transmission Lock Check
While parked, and with the parking brake set, try to turn the ignition to LOCK/OFF in each shift lever position. The ignition should turn to LOCK/OFF only when the shift lever is in P (Park). ...

Driving Impressions
Functions on the Escalade EXT work as promised, and its performance rivals that of the regular Escalade. But the utility of the pickup bed at the back is debatable. Even more than a standard Escal ...

Anti-theft Alarm System Messages
THEFT ATTEMPTED This message displays if the vehicle detects a tamper condition. ...