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:

    Fuel Additives
    To provide cleaner air, all gasolines in the United States are now required to contain additives that help prevent engine and fuel system deposits from forming, allowing the emission control syste ...

    Power Door Locks
    Select Power Door Locks and the following will be displayed: - Unlocked Door Anti Lock Out - Auto Door Unlock - Delayed Door Lock ...

    Setting the Power Liftgate 3/4 Mode
    To change the liftgate stop position. 1. Turn the liftgate switch to either the MAX, or the 3/4 mode position and power open the liftgate. 2. Stop the liftgate movement at the desired height by p ...