2021 GMC Sierra HD
2021 GMC Sierra HD in Decatur, AL
MPG
City
Highway
0 Vehicles Available
POWERFUL PERFORMANCE
When you pair the available Allison® 10-speed automatic transmission with the available 6.6L Duramax® Turbo-Diesel V8 engine, you can tow with absolute command and control.
AVAILABLE IN-VEHICLE TRAILERING APP1
Integrated into the Infotainment screen, the different available camera views let you easily keep tabs on your truck and trailer while the in-vehicle Trailering App provides a Trailer Light Sequence Test, an available Trailer Tire Pressure and Temperature Monitoring System2, and more.
BEST-IN-CLASS HEAVY-DUTY CARGO BED VOLUME
The roll-formed high-strength steel bed with available durable spray-on bedliner features 12 cargo tie-downs and offers best-in-class heavy-duty cargo bed volume3 of 69.6–83.5 cu. ft.
BEST-IN-CLASS CREW CAB FRONT HEAD AND LEG ROOM4
The spacious Crew Cab interior cabin features premium materials with class-leading 43" of front head room and 44.5" of front leg room.
All Vehicles - Tax, title, license, dealer fee, accessories and dealer installed options are extra.
The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.
More Info
Disclaimers
1App functionality and features vary with vehicle equipment and trim level. Data connection may be required. Some features require active service plan and working electrical system. Terms and limitations apply.
2Extra-cost feature; requires installation.
3Cargo and load capacity limited by weight and distribution.
4Excludes other GM vehicles.