
2020 GMC Sierra 2500HD
About this GMC Sierra 2500HD
This 2020 GMC Sierra 2500HD AT4 is listed at $53,992 with 35,235 miles on the odometer. Powertrain: 6.6L V-8 Gas Turbocharged, Automatic, 4WD. Finished in Onyx Black, this Pickup Truck is well suited to daily driving and longer trips. Available at Napleton Autowerks of Rockford in Rockford, IL. Contact the dealer directly through Carlify to schedule a test drive or request more photos. Looking at other gas options? Use the related links below to compare similar listings on Carlify.
Sunroof, Navigation, Heated Leather Seats, 4x4, Alloy Wheels, Bed Liner, Trailer Hitch, Heated Rear Seat, AUDIO SYSTEM, PREMIUM GMC INFOTAINMENT SYSTEM WITH NAVIGATION AND 8 DIAGONAL COLOR TOUCH-SCREEN, AT4 PREFERRED PACKAGE <br /><br />KEY FEATURES INCLUDE<br />Leather Seats, 4x4, Heated Driver Seat, Heated Rear Seat, Cooled Driver Seat. GMC AT4 with Onyx Black exterior and Jet Black with Kalahari Accents interior features a 8 Cylinder Engine with 401 HP at 5200 RPM*. <br /><br />OPTION PACKAGES<br />AT4 PREMIUM PACKAGE includes (PDO) AT4 Preferred Package, (PQB) Driver Alert Package I, (PYU) 20 (50.8 cm) machined aluminum with high gloss Black paint wheels and (RVQ) 6 Black rectangular assist steps, LPO, TECHNOLOGY PACKAGE includes (UVS) HD Surround Vision, (DRZ) Rear Camera Mirror, (UVN) Bed View Camera and (UV6) Multicolor 15 Diagonal Head-Up Display Includes (UHS) 8 Digital Driver information Center.), AT4 PREFERRED PACKAGE includes (UG1) Universal Home Remote, (A48) rear sliding power window, (IOT) 8 diagonal Premium GMC Infotainment with navigation, (UQA) Bose Premium Audio System, (U01) Roof Marker Lamps and (K4C) Wireless Charging, SUNROOF, POWER, DRIVER ALERT PACKAGE I includes (UD5) Front and Rear Park Assist, (UKC) Lane Change Alert with Side Blind Zone Alert and (UFG) Rear Cross Traffic Alert (Includes Perimeter Lighting. DRIVER ALERT PACKAGE II includes (UEU) Forward Collision Alert, (UFL) Lane Departure Warning, (UHY) Automatic Emergency Braking, (TQ5) IntelliBeam headlamps and (UE4) Following Distance Indicator Includes (HS1) Safety Alert Seat.), AUDIO SYSTEM, PREMIUM GMC INFOTAINMENT SYSTEM WITH NAVIGATION AND 8 DIAGONAL COLOR TOUCH-SCREEN includes multi-touch display, AM/FM stereo, Bluetooth® streaming audio for music and most phones; featuring Android Auto® and Apple CarPlay® capability for compatible phones, advanced voice recognition, in-vehicle apps, personalized profiles for infotainment and vehicle settings. Includes greater memory. Includes (PZ8) Hitch Guidance with hitch view.), ENGINE, 6.6L V8 with Direct Injection and Variable Valve Timing, gasoline (401 hp [299 kW] @ 5200 rpm, 464 lb-ft of torque [629 N-m] @ 4000 rpm) (STD), TRANSMISSION, 6-SPEED AUTOMATIC, HEAVY-DUTY (STD). <br /><br />AFFORDABILITY<br />AutoCheck One Owner This Sierra 2500HD is priced $5,800 below Kelley Blue Book. <br /><br />BUY FROM AN AWARD WINNING DEALER<br />Our family has been selling and servicing vehicles since 1931. Today there are more than 60 Napleton dealerships in four states, providing thousands of happy customers with unmatched service and affordable prices.Our selection, excellent customer service, and fair prices make Napleton one of the leading Cadillac dealers in northern Illinois. <br /><br />Pricing analysis performed on 8/20/2025. Horsepower calculations based on trim engine configuration. Please confirm the accuracy of the included equipment by calling us prior to purchase. <br />
Inspection summary
Inspection scores are estimates based on title status, accident history, and frame condition. Schedule a third-party inspection before purchase.
Estimates from typical 12k mi/yr usage. Actuals vary.
- Mon9:00am – 8:00pm
- Tue9:00am – 8:00pm
- Wed9:00am – 8:00pm
- Thu9:00am – 8:00pm
- Fri9:00am – 6:00pm
- Sat9:00am – 6:00pm
- SunClosed