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 
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Advisor can run a check.
See also:
Top Tether Anchor
A top tether (A, C) anchors the top of the child restraint to the vehicle. A
top tether anchor is built into the vehicle. The top tether attachment (B) on the
child restraint connects to the top ...
Object Detection System Messages
PARK ASSIST OFF
This message displays when the park assist system has been turned off or
when there is a temporary condition causing the system to be disabled. See
Ultrasonic Parking Assist.
S ...
Safety
The CTS sedan performed well in crash tests conducted by the Insurance
Institute for Highway Safety and the National Highway Traffic Safety
Administration. It received the IIHS' 2012 Top Safety Pi ...