OnStar Vehicle Diagnostics can perform a vehicle check every month. It will check
the engine, transmission, antilock brakes, and other major vehicle systems. It also
checks the tire pressures, if the vehicle is equipped with the Tire Pressure Monitoring
System. If an On-Demand Diagnostics check is needed, press
, and an Advisor can run a check.
Connections
OnStar Additional InformationRadio Reception
Frequency interference and static can occur during normal radio reception if
items such as mobile phone chargers, vehicle convenience accessories, and external
electronic devices are plugged into the accessory power outlet. If there is interference
or static, unplug the item from the accessory ...
Fuel
Use of the recommended fuel is an important part of the proper maintenance of
this vehicle. When driving in the U.S. and Canada, to help keep the engine clean
and maintain optimum vehicle performance, we recommend using TOP TIER Detergent
Gasolines.
See www.toptiergas.com for a list of TOP TI ...
Reporting Safety Defects to the United States Government
If you believe that your vehicle has a defect which could cause a crash or could
cause injury or death, you should immediately inform the National Highway Traffic
Safety Administration (NHTSA) in addition to notifying General Motors.
If NHTSA receives similar complaints, it may open an investig ...