Diagnostics
OnStar Vehicle Diagnostics will
perform a vehicle check every
month. It will check the engine,
transmission, antilock brakes, and
major vehicle systems. It also
checks the tire pressures, if the
vehicle is equipped with the Tire
Pressure Monitoring System. If a
diagnostics check is needed
between e-mails, push 
, and
an Advisor can run a check.
See also:
Tire and Loading Information Label
Label Examp
A vehicle-specific Tire and Loading Information label is attached to the
vehicle's center pillar (B-pillar). With the driver door open, the label is
attached near the door lock po ...
Trailer Towing
(CTS-V and Coupe)
The vehicle is neither designed nor
intended to tow a trailer. ...
Dual Tone Multi-Frequency
(DTMF) Tones
The Bluetooth system can send
numbers and the numbers stored as
name tags during a call. You can
use this feature when calling a
menu-driven phone system.
Account numbers can also be
stored ...