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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 ...

When the System Does Not Seem to Work Properly
The following messages may be displayed on the DIC: SERVICE PARKING ASSIST: If this message occurs, take the vehicle to your dealer to repair the system. PARK ASSIST OFF: If the URPA system does n ...

Athletic design
With a powerful front-end design, which hints at the GM 3.6L V-6 VVT engine underneath, the Acadia features athletic styling with a raked "GMC" grille and dual halogen projector headlamp ...