A strange photo shows a GMC Sierra AT4 bottomed out on some structure in a parking lot. We're really like to know what the ...

That’s because the AT4X is no longer a trim level for the 2025 model year, instead becoming a package offered on the AT4 trim. From there, the 2025 GMC Canyon adds an optional snorkel as an LPO ...

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 ...

The 2025 GMC Acadia AT4 is a rugged and more affordable option than the GMC Yukon if you don’t need as much space. My week with this luxury SUV was more comfortable and adventurous than expected.