See also:

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 ...

Total Weight on the Vehicle's Tires
Inflate the vehicle's tires to the upper limit for cold tires. These numbers can be found on the Certification label or see Vehicle Load Limits on page 9‑10 for more information. Do not go over ...

Removing the Flat Tire and Installing the Spare Tire
1. Do a safety check before proceeding. See If a Tire Goes Flat on page 10‑65 for more information. 2. For vehicles with a wheel cover or center cap, pull the cover or center cap away from ...