The GMC Sierra 2500 HD Crew Cab offers available max towing of up to 21,870 lbs.*
The Sierra Heavy Duty truck’s available Duramax 6.6L Turbo-Diesel V8 engine features an efficient turbocharger and 10-speed automatic transmission.
The 2026 Sierra Heavy Duty truck offers advanced trailering-assistance technologies so you can trailer with confidence.
Stand out everywhere you go with GMC Sierra HD Denali’s iconic chrome grille, front bumper and fascia.
The powerfully innovative available MultiPro Tailgate combines six convenient functions to help make light work of almost any job. Shown with available MultiPro Audio System by KICKER.*
LED projector headlamps with striking animated sequences help enhance the Sierra Heavy Duty work truck’s impressive exterior design.
The color touchscreen with Google built-in* compatibility and voice-activated technology for your phone provides a seamless way to customize your entertainment.
Experience serious comfort in the Sierra Heavy Duty truck’s available best-in-class* 16-way power front seats with massaging feature.
Sierra HD Denali Ultimate’s Alpine Umber interior features full-grain leather seating, plaited contrast stitching, and embossed and laser-etched topographical map patterns of its namesake’s mountain summit.
The Sierra Heavy Duty truck features best-in-class Crew Cab front head and leg room.*
Standard on every new GMC - GMC Pro Grade Protection has you truly protected with features and services including:
Side Blind Zone Alert can provide side-mirror visual alerts when a moving vehicle is detected in a side blind zone. It can help you avoid lane change collisions.
Rear Park Assist* can provide distance alerts to nearby detected objects behind your vehicle to help you park and avoid collisions when you’re in Reverse at low speeds.
Forward Collision Alert can warn you if it detects a potential front-end collision with a vehicle you’re following so you can quickly take action. It can also provide a tailgating alert if you’re following a vehicle much too closely.