Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm).
Notice: If the engine is operated with the tachometer in the shaded warning area,
the vehicle could be damaged, and the damages would not be covered by the vehicle
warranty. Do not operate the engine with the tachometer in the shaded warning area.
See also:
Using the Digit Store Command
The digit store command allows a phone number to be
stored by entering the digits individually.
1. Press and hold for two seconds.
The system
responds with “Ready” followed by a tone.
2. ...
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).
...
Security
OnStar provides services like Stolen Vehicle Assistance, Remote Ignition Block,
and Roadside Assistance, if the vehicle is equipped with these services. OnStar
can unlock the vehicle doors remotel ...