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:
Clock
The analog clock is not connected with any other vehicle system and runs by itself.
To adjust the clock, do the following:
1. Locate the adjustment button, near the lower left corner of the clock.
...
Automatic Fold and Tumble Feature
The transmission must be in P (Park) for this feature to work.
WARNING
Automatically folding and tumbling the seat when someone is sitting in the seat,
could cause injury to the person sittin ...
Checking Coolant
The vehicle must be on a level surface when checking the coolant level.
Check to see if coolant is visible in the coolant surge tank. If the coolant
inside the coolant surge tank is boiling, do not ...