GMC Terrain: When to Check - Tire Pressure - Wheels and Tires - Vehicle Care - GMC Terrain Owner's ManualGMC Terrain: When to Check

Check the tires once a month or more. Do not forget the compact spare tire, if the vehicle has one. The cold compact spare should be at 420 kPa (60 psi). For additional information regarding the compact spare tire, see Compact Spare Tire on page 10‑75.

    Tire Pressure
    Tires need the correct amount of air pressure to operate effectively. Notice: Neither tire underinflation nor overinflation is good. Underinflated tires, or tires that do not have enough air, can r ...

    How to Check
    Use a good quality pocket-type gauge to check tire pressure. Proper tire inflation cannot be determined by looking at the tire. Check the tire inflation pressure when the tires are cold, meaning t ...

    See also:

    Horn
    Horn Press the horn pad on the steering wheel to sound the horn. The horn will sound with the ignition switch in any position. ...

    Transfer Case
    Refer to the Maintenance Schedule to determine how often to check the lubricant and when to change it. See Maintenance Schedule on page 11‑3. ...

    Operating the tailgate manually
    The power tailgate can be disconnected from the vehicle’s electrical system by quickly pulling the outer handle twice. The tailgate can then be opened/closed manually. ...