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:
Washer Fluid
What to Use
When adding windshield washer fluid, be sure to read the manufacturer's instructions before use. If the vehicle will be operating in an area where the temperature may fall below freezing, ...
Heated and Ventilated Front Seats
WARNING
If you cannot feel temperature change or pain to the skin, the seat heater may cause burns even at low temperatures.
To reduce the risk of burns, people with such a condition should use care ...
Securing a Child Restraint Designed for the LATCH
System
WARNING
If a LATCH-type child restraint is not attached to anchors, the child restraint will not be able to protect the child correctly. In a crash, the child could be seriously injured or killed. In ...