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:
Vehicle Security
This vehicle has theft-deterrent features; however, they do not make it
impossible to steal. ...
Torque Lock
Torque lock is when the weight of the vehicle puts too much force on the
parking pawl in the transmission. This happens when parking on a hill and
shifting the transmission into P (Park) is not done ...
Fuel Gauge
When the ignition is on, the fuel gauge shows about how much fuel the vehicle
has left in the tank.
An arrow on the fuel gauge indicates the side of the vehicle the fuel door is
on.
The gauge ...