Tire Pressure for High-Speed Operation

WARNING WARNING

Driving at high speeds, 160 km/h (100 mph) or higher, puts an additional strain on tires. Sustained high-speed driving causes excessive heat buildup and can cause sudden tire failure. You could have a crash and you or others could be killed. Some high-speed rated tires require inflation pressure adjustment for high-speed operation. When speed limits and road conditions are such that a vehicle can be driven at high speeds, make sure the tires are rated for high-speed operation, in excellent condition, and set to the correct cold tire inflation pressure for the vehicle load.

Vehicles with P265/65R18 or P285/45R22 size tires require inflation pressure adjustment when driving the vehicle at speeds of 160 km/h (100 mph) or higher. Set the cold inflation pressure to 20 kPa (3 psi) above the recommended tire pressure shown on the Tire and Loading Information Label. Return the tires to the recommended cold tire inflation pressure when high-speed driving has ended. See Vehicle Load Limits   and Tire Pressure  .

    See also:

    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 Overv ...

    Keyless Trunk/Liftgate Opening
    Press the trunk/liftgate release button located above the license plate to open the trunk/liftgate if the keyless access transmitter is within range. See Trunk (Sedan, Coupe) for additional ...

    Deleting Personal Information
    This navigation system can record and store personal information such as names and addresses. Delete this information when selling your vehicle or returning a leased vehicle. See “Edit Address Boo ...