Dual Tone Multi-Frequency (DTMF) Tones
The in-vehicle Bluetooth system can send numbers during a call. This is used when calling a menu-driven phone system.
1. Turn the Menu knob to select Enter Number, then press SELECT.
2. Enter the character sequence.
See “Entering a Character Sequence” in Operation for more information.
See also:
Automatic Dimming Rearview Mirror
On vehicles with an automatic
dimming inside rearview mirror the
automatic dimming reduces the
glare from the headlamps of the
vehicle behind you.
Vehicles with OnStar have three
control bu ...
Underbody Maintenance
Use plain water to flush dirt and debris from the vehicle's underbody. Your dealer
or an underbody car washing system can do this. If not removed, rust and corrosion
can develop. ...
Ultrasonic Parking Assist
If available, the Ultrasonic Rear
Parking Assist (URPA) system
assists the driver with parking and
avoiding objects while in
R (Reverse). URPA operates at
speeds less than 8 km/h (5 mph).
T ...
