Service Only Mode
This power mode is available for service and diagnostics, and to verify the proper operation of the malfunction indicator lamp as may be required for emission inspection purposes. With the vehicle off, and the brake pedal not applied, pressing and holding the button for more than five seconds will place the vehicle in Service Only Mode. The instruments and audio systems will operate as they do in ON/RUN, but the vehicle will not be able to be driven. The engine will not start in Service Only Mode. Push the button again to turn the vehicle off.
See also:
OnStar Steering Wheel Controls
This vehicle may have a Talk/Mute button that can be used to interact with OnStar Hands-Free calling.
See Steering Wheel Controls for more information.
On some vehicles, the Talk button can be ...
Canceling a Remote Start
To cancel a remote start, do any of
the following:
• Aim the RKE transmitter at the
vehicle and press and hold
until the parking lamps turn off.
• Turn on the hazard warning
flashers.
...
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 ...