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General Motors launched the GMC Sierra AT4 with the debut of the light-duty pickup’s fourth generation for the 2019 model year. The Sierra range, including the AT4, was later refreshed for the 2022.5 ...

When you want to go off-road, uptown-style, GMC supports that vision with a rugged line of trucks and SUVs packaged under the AT4 label, or All-Terrain 4WD. These mighty vehicles are off-road capable, ...

Get an online offer in 2 minutes using our Sell My Car tool. Actual price and payments may be different due to local rebates, specials, fees, and credit qualifications. Consult your dealer for actual ...