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:
Battery Voltage and Charging Messages
BATTERY SAVER ACTIVE
This message displays when the vehicle has detected that the battery voltage
is dropping beyond a reasonable point. The battery saver system starts reducing
certain features ...
Electric Brake Control Wiring Provisions
These wiring provisions are included with the vehicle as part of the trailer
wiring package. These provisions are for an electric brake controller. The instrument
panel contains blunt cut wires ne ...
Fuel
Use of the recommended fuel is an important part of the proper maintenance of
this vehicle. To help keep the engine clean and maintain optimum vehicle performance,
we recommend the use of gasoline ...