Cold Temperature Operation

If in an area of extreme cold, where the temperature falls below −20°F (−29°C), use either an SAE 5W-30 synthetic oil or an SAE 0W-30 engine oil. Both provide easier cold starting for the engine at extremely low temperatures. Always use an oil that meets the required specification, GM6094M. See “What Kind of Engine Oil to Use” for more information.

    See also:

    Rear Seat Pass-Through
    Your vehicle has a small door in the rear seat. This door allows you to access the trunk from inside the vehicle. The rear seat armrest must be down for the pass-through door to open. To release ...

    Battery
    The battery supplies power to start the engine and operate any additional electrical accessories. • To avoid break-down or failure to start the vehicle, maintain a battery with full crankin ...

    Store a Name Tag for Speed Dialing
    1. Push . System responds: “OnStar ready.”. 2. Say “Store.” System responds: “Please say the number you would like to store.”. 3. Say the entire number without pausing. System resp ...