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:

    2011 Buick Regal Review
    More than a few surprises have accompanied the rebirth of General Motors. Chief among them is the resurgence of Buick, which was chosen as one of just four brands GM kept alive, even as it euthani ...

    Theft-Deterrent Feature
    The theft-deterrent feature works by learning a portion of the Vehicle Identification Number (VIN) to the infotainment system. The infotainment system does not operate if it is stolen or moved to a di ...

    Defensive Driving
    Defensive driving means “always expect the unexpected.” The first step in driving defensively is to wear the safety belt. See Safety Belts . . Assume that other road users (pedestrians, bicycli ...