Sierra AT4X HD News

AEV Launches Front Bumper For 2024+ GMC Sierra HD

The same unit equipped on the AT4X AEV Edition.

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Some GMC Sierra HD, Savana Units Need A Power Steering Pump Replacement

The pumps in some vehicles may prematurely fail.

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Some 2024 Chevy Silverado HD, GMC Sierra HD Units Will Need A Remote Start Fix

Involving an improper check engine light.

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Check Out This GMC Sierra HD AT4X Riding On Vossen LCX-03 Wheels

Heavy-duty off-roader looks on point with 24-inch rollers.

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GM Defense Unveils Next Gen Tactical Vehicle Prototype

Based on the Silverado 2500 HD ZR2.

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2025 GMC Sierra HD Gets Standard Adaptive Cruise Control On More Trim Levels

Now four trims instead of two.

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AEV Launches Sierra AT4X AEV Edition, Silverado ZR2 Bison Winch Installation Kit

Designed specifically for the AEV steel bumper.

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AEV Debuts GMC Sierra Grande Concept Overlanding Rig

Riding on 40-inch tires.

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2024 GMC Sierra HD AT4X In Onyx Black: Live Photo Gallery

Featuring the optional Duramax engine.

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2024 GMC Sierra AT4X And AT4X AEV Edition Announced In Canada

Pricing to be announced later.

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2024 GMC Sierra HD AT4X AEV Edition Debuts: Video

Unique touches courtesy of American Expedition Vehicles.

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AT4 And Denali Trims Made Up Almost Half Of GMC Sales In 2022

Average transaction prices are on the rise as well.

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2024 GMC Sierra HD AT4X Spied On The Road Again

Another look at Big Red's upcoming heavy duty beast.

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2024 GMC Sierra AT4X HD Spied With DSSV Shocks, 35-Inch Tires

Off-roading formula comes into focus.

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2024 GMC Sierra HD Series Designation Moves To Front Bumper

This badge indicates the capacity of the truck.

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2024 GMC Sierra HD AT4X On The Way

Set to launch later in 2023.

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2024 GMC Sierra HD AT4X Caught Testing

The AT4X HD may not feature Multmatic DSSV dampers.

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