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:
Rear Wiper Blade Replacement
The rear wiper blade and wiper arm have a cover for protection.
The cover must be removed before the wiper blade can be replaced.
To remove the cover:
1. Slide a plastic tool under cover ...
Starting the Vehicle with a Low Transmitter Battery
If the transmitter battery is weak, the DIC may display NO REMOTE DETECTED
when you try to start the vehicle. The REPLACE BATTERY IN REMOTE KEY message
may also be displayed at this time.
To star ...
Trailer Towing
(CTS-V and Coupe)
The vehicle is neither designed nor
intended to tow a trailer. ...