OnStar®

If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services. See OnStar Overview on page 14‑1 for more information.

    See also:

    Owner Checks and Services
    At Each Fuel Stop • Check the engine oil level. See Engine Oil on page 10‑7. Once a Month • Check the tire inflation pressures. See Tire Pressure on page 10‑62. • Inspect the tir ...

    When It Is Time for New Tires
    Factors, such as maintenance, temperatures, driving speeds, vehicle loading, and road conditions affect the wear rate of the tires. Treadwear indicators are one way to tell when it is time for new ...

    2011 GMC Acadia Review
    As many SUVs have evolved into what some folks call crossovers, they have also morphed from utilitarian, truck-like vehicles into more luxurious ones. Some dedicated luxury brands have entered the ...