The 2019 GMC Sierra AT4 blends off-road hardware into a ... The standard engine is a 5.3-liter V8, though buyers can choose an optional 3.0-liter turbo-diesel inline-six or 6.2-liter V8.

The 2019 GMC Sierra AT4 proves that GM's upmarket truck and SUV ... These include a turbo-diesel 3.0-liter inline-six, along with a 6.2-liter V8. Both motors are paired to stop-start fuel-saving ...

That includes the GMC ... AT4 brand even further with the introduction of two new specialized trims. Among them is the AT4X, which is positioned as an even-more-capable off-road variant for the ...

Our 2024 GMC Sierra AT4X AEV Edition test truck featured the optional Duramax 3.0-liter turbodiesel engine with 305 horsepower and 495 lb-ft of torque. Although the Sierra AT4X AEV Edition boasts ...

Actual terms vary by lender. 2021 GMC sierra 1500, 5.3, crew cab 4x4, 21000 miles. brakepad monitor lites up. dealership says needs brakes and rotors in back. one mo. on warranty. our rural roads ...

GMC is ready to lead the way with a clear strategy that balances innovation and tradition. From advanced diesel engines to electrification and luxury, 2025 promises to be a pivotal year for ...