Tire Inspection

We recommend that the tires, including the spare tire, if the vehicle has one, be inspected for signs of wear or damage at least once a month.

Replace the tire if:

○ The indicators at three or more places around the tire can be seen.
○ There is cord or fabric showing through the tire's rubber.
○ The tread or sidewall is cracked, cut, or snagged deep enough to show cord or fabric.
○ The tire has a bump, bulge, or split.
○ The tire has a puncture, cut, or other damage that cannot be repaired well because of the size or location of the damage.

    See also:

    Engine Cooling When Trailer Towing
    The cooling system may temporarily overheat during severe operating conditions. See Engine Overheating on page 10‑20. ...

    Starter Switch Check
    WARNING When you are doing this inspection, the vehicle could move suddenly. If the vehicle moves, you or others could be injured. 1. Before starting this check, be sure there is enough room aroun ...

    Overview
    The GMC Sierra All Terrain HD concept is an exploration of heavy-duty truck capability combined with greater off-road versatility. It is highlighted by a bold exterior design, enhanced all-terrain ...