Used 2020 GMCSierra 2500 HD AT4
- Exterior Color
- Carbon Black Metallic
- Interior Color
- JET BLACK WITH KALAHARI ACCENTS, PERFORATED LEATHE
- Odometer
- 76,219 miles
- Transmission
- Automatic
- Drivetrain
- 4WD
- Engine
- Engine: 6.6L V8 DuraMax Diesel, Turbo
- VIN
- 1GT49PEY9LF347469
- Stock Number
- 06T3960A
GMC
Sierra 2500 HD
Included Packages & Accessories
Detailed Specifications
- Max seating capacity: 5
- Fuel System: Direct Injection
- Fuel tank capacity: 36 gal
- Horsepower: 445
Dealer Notes
2020 GMC Sierra 2500HD AT4 Carbon Black Metallic 4WD Duramax 6.6L V8 TurbodieselRecent Arrival! AT4 Premium Package with aluminum wheels and running boards Technology Package with backup camera, heads-up display, aerial view system Driver Alert Packages: lane departure warning, blind spot monitor, rear parking sensors Preferred Package with premium sound, navigation system, Bluetooth, universal garage door opener, sliding rear window 6.6L V8 diesel turbo engine, 10-speed automatic transmission Sunroof/moonroof Four-wheel drive with off-road suspension and twin-tube shocks Heated front and rear seats, cooled front seats, heated steering wheel Power-adjustable driver's seat and passenger seat with adjustable lumbar Integrated trailer brake controller and ProGrade trailering system Tow package, tow hooks, and snow plow prep/camper package Remote engine start, keyless entry and start Wi-Fi hotspot, HD radio, auxiliary input and MP3 capability Wireless charging Folding rear seat with storage and pass-through Power mirrors, integrated turn signals, heated and folding capability Cruise control, steering wheel audio controls LED roof marker lamps and daytime running lights Front collision mitigation and auto highbeams Stability control, traction control, and security system
KBB.com Consumer Reviews

Overall3.8Out of 5
- 2.0
Transmission trash
By Jason | on Monday, April 07, 2025
Bought a 2023 GMC Duramax diesel Sierra SLT had it for two years hit 50,000 miles. The throttlebody broke went in for service. Got it back three weeks at 62,000 miles now my transmission is slipping. I travel back-and-forth from South Carolina to North Carolina for work daughter’s truck would be my forever truck. What a joke Hundred thousand dollar truck junk… - 5.0
Fantastic truck
By Jjj | on Sunday, November 07, 2021
This one of the most solid vehicles that I have ever driven! The 401 hp engine is more than enough power and the transmission is smooth! Highly recommend this truck!… - 3.0
Don't judge a truck by the appearance
By jmil | on Wednesday, May 11, 2022
Great truck, loved it until the DEF tank heater malfunctioned and shut down the truck. Now sitting waiting for the replacement tank for over 10 weeks. Turns out every HD truck 2020 and 2021 has the same problem and all will need this replacement that is being produced at a snail's pace by GM. Per the dealership, last count, over 9000 trucks like mine are idle waiting for this part. $65000 waste of money and terrible service by GMC (not the local dealership).…
Based on 13 consumer ratings for 2020–2025 models. | Privacy
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