GMC Sierra 1500 All Terrain

GMC Sierra 1500 All Terrain models were off-road-oriented variants that preceded the currently-available Sierra 1500 AT4 pickup truck.

To clarify, the All Terrain moniker applied to a package available on the Sierra 1500, whereas the AT4 represents an actual trim level for the fourth-generation pickup truck.

GMC Sierra 1500 All Terrain Quick Facts
Model Year(s)	2008 – 2018
Engine(s)	5.3L V8, 6.2L V8
Transmission(s)	6-Speed Auto, 8-Speed Auto
Drive Wheels	Rear-Wheel, Four-Wheel-Drive
Availability	U.S.A., Canada, Mexico, Middle East

The All Terrain name was offered as a package on the following Sierra 1500 models:

2008-2013 GMC Sierra 1500 All Terrain
2015-2018 GMC Sierra 1500 All Terrain
2017-2018 GMC Sierra 1500 All Terrain X

The Sierra 1500 All Terrain package traces back as early as the second-generation of the pickup truck, debuting in 2007 and arriving for the 2008 model year. When it arrived, the package including the following equipment:

Z71 Off-Road Package
Front and rear carpeted floor mats with embroidered “ALL TERRAIN” logo
18-inch x 8-inch (45.7 cm x 20.3 cm) chrome-clad aluminum wheels (RGA)
P265/65R18 on-/off-road blackwall tires (QXN)
Outside heated power-adjustable, power-folding body-colored mirrors
Heavy-duty trailering equipment
Rancho brand shocks that are White with Red letters
Body-colored bodyside moldings with chrome accent
Unique 4-bar horizontal grille insert with chrome surround
“ALL TERRAIN” badging on the front fenders
Unique sill plates
Unique instrument cluster with Z71 logo and mechanical brushed aluminum accents for instrument panel
Center console and switch trim plates

The Sierra 1500 All Terrain model received all-new styling for the 2014 model year, when the third-generation model entered the market. New additions to the package included front tow hooks, hill descent control, a transfer case shield, and a “carbon fiber-look seat accent” for SLT models equipped with the package.

In 2016 GMC announced the arrival of the Sierra All Terrain X, which was a special edition of the All Terrain model that featured exclusive premium content which enhanced off-road capability and provided an aggressive, monochromatic appearance.

When the current, fourth-generation model arrived for the 2019 model year, the All Terrain package was discontinued and replaced by the AT4 trim level, which offered customers the same off-roading competencies and bold appearance that were associated with the All Terrain sub-brand.