See also:

Tachometer
The tachometer displays the engine speed in revolutions per minute (rpm). ...

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

Remote Control Buttons
(Power): Press this button to turn the video screen on and off. (Illumination): Press this button to turn the remote control backlight on. The backlight automatically times out after 7 to 10 second ...