Potential Issues

Some OnStar services are disabled after five days. OnStar cannot perform Remote Door Unlock or Stolen Vehicle Assistance after the vehicle has been off continuously for five days. After five days, OnStar can contact Roadside Assistance and a locksmith to help gain access to the vehicle.

    See also:

    Starting the Engine Using Remote Start
    To start the engine using the remote start feature: 1. Aim the transmitter at the vehicle and press and release on the transmitter. 2. Press and hold for at least four seconds or until the ...

    Fuses and Circuit Breakers
    The wiring circuits in the vehicle are protected from short circuits by a combination of fuses and circuit breakers. This greatly reduces the chance of damage caused by electrical problems. To ch ...

    Increasing Speed While Using Cruise Control
    If the cruise control system is already activated, . Press and hold the +RES button on the steering wheel until the desired speed is reached, then release it. . To increase vehicle speed in small ...