2021 GMC Sierra 2500
2021 GMC Sierra 2500 OVERVIEW 
2021 GMC Sierra 2500 For Sale
- 6.6L V8 Direct Injection with Variable Valve Timing Gas engine
- 6-speed, heavy-duty, electronically controlled automatic transmission
- StabiliTrak® with Traction Control
- 7" diagonal GMC Infotainment System
2021 GMC Sierra 2500 MODELS
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Sierra 2500 Sierra
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Sierra 2500 SLE
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Sierra 2500 SLT
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Sierra 2500 AT4
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Sierra 2500 Denali
2021 GMC Sierra 2500 CONFIGURATIONS
* Model and trim configurations may vary
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Sierra 2500 Regular Cab Long Bed
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Sierra 2500 Double Cab Standard Bed
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Sierra 2500 Double Cab Long Bed
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Sierra 2500 Crew Cab Standard Bed
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Sierra 2500 Crew Cab Long Bed
GMC Sierra 2500 For Sale
2021 GMC Sierra 2500 PERFORMANCE 
ENGINEERED TO DOMINATE
The 2021 Sierra Heavy Duty pickup truck offers up to 36,000 lbs of max towing. It’s built strong so you can tow strong. Its large drive shaft and rear axle will give you increased durability and strength. And its improved brakes and steering offer superior control.
ADVANCED ENGINES & TRANSMISSIONS
The 2021 Sierra Heavy Duty truck features advanced engines and transmissions that power a confident driving and trailering experience:
- 6.6L V8 Gas Engine
- Available 6.6L Duramax® Turbo-Diesel V8 Engine with Allison® 10-Speed Automatic Transmission
AVAILABLE 2-SPEED AUTOTRAC TRANSFER CASE
Sierra is the first heavy-duty truck in its class to offer a 2-speed AutoTrac™ transfer case with an active automatic 4WD setting, which provides seamless shifting between two- and four-wheel drive based on road conditions.
2021 GMC Sierra 2500 APPEARANCE 
PRIMARY GATE
Open the primary gate using the key fob’s power release from inside the truck or from a button on the gate.
PRIMARY GATE LOAD STOP
With the primary gate open, the load stop can help prevent items from sliding out of the bed.
EASY ACCESS
The inner gate folds down for easy access when loading and unloading the bed.
2021 GMC Sierra 2500 COMFORT 
ENHANCED COMFORT
- Available leather-wrapped heated steering wheel
- Available heated and ventilated leather-appointed front seats
- Available HVAC system with dual-zone climate control and rear-seat outlets
RIDE CONFIDENT
- Sierra HD’s elevated driver seat lets you survey the road with absolute confidence and offers comfortable cushions that provide enhanced support during long hauls and while towing
- Spacious interior features best-in-class Crew Cab front head room (43.0") and leg room (44.5”)
AVAILABLE BOSE PREMIUM SOUND SYSTEM
The Bose Premium Sound System supplies seven well-placed speakers to produce powerful, high-quality concert-like sound wherever you go.
2021 GMC Sierra 2500 SAFETY & WARRANTY 
PRO GRADE PROTECTION
Standard on every new GMC - GMC Pro Grade Protection has you truly protected with features and services including:
- 3-year / 36,000-mile Bumper-to-Bumper Limited Warranty
- 5-year / 60,000-mile Powertrain Limited Warranty
- 5-year / 60,000-mile Roadside Assistance & Courtesy Transportation
- 3-year / 36,000-mile Corrosion Protection
- 6-year / 100,000-mile Rust-Through Protection
- First maintenance visit
AVAILABLE LANE DEPARTURE WARNING
Uses a brief, gentle steering wheel turn to alert you when you may be unintentionally drifting out of detected lane lines, so you can steer to stay safely in your lane. If needed, you may receive additional Lane Departure Warning alerts. System alerts do not occur if you’re using your turn signal or it detects that you are intentionally leaving your lane. Available on SLE, SLT and AT4. Standard on Denali.
AVAILABLE FRONT AND REAR PARK ASSIST
Front and Rear Park Assist provides distance alerts to nearby detected objects to help you park and avoid objects at low speeds. Available on base Sierra HD, SLE, SLT and AT4. Standard on Denali.