
Photo courtesy of GM.
General Motors has introduced the 2015 GMC Sierra All Terrain HD, an four-wheel-drive pickup truck that goes on sale this summer.
The Sierra All Terrain HD is available as a 2500HD or 3500HD truck with a double cab or crew cab configuration in SLE or SLT trim levels. The truck's all-wheel drive system includes an electronically controlled transfer case. Other standard features include the Z71 off-road package with Rancho twin-tube shocks, hill descent control and a skid plate.












