Used 2021 GMCSierra 3500 HD Truck Crew Cab SLT DRW
- Exterior Color
- Summit White
- Interior Color
- Dark Walnut/Slate, Perforated leather-appointed fr
- Odometer
- 59,280 miles
- Transmission
- Automatic
- Drivetrain
- 4x4
- Engine
- 6.6L Duramax Turbo-Diesel V8 engine
- VIN
- 1GT49UEY6MF277459
- Stock Number
- YC1385B
GMC
Sierra 3500 HD
Included Packages & Accessories
Detailed Specifications
- Max seating capacity: 6
- Fuel System: Direct Injection
- Fuel tank capacity: 36 gal
- Horsepower: 401
- Towing capacity: 16240 lbs
- 6-speaker audio system:
- Speakers are positioned throughout the cabin for outstanding sound quality and an enjoyable listening experience
- 8" diagonal Premium GMC Infotainment System:
- Multi-touch display and AM/FM/SiriusXM1(trial subscription), stereo
- HD Radio capability
- Bluetooth®2 streaming audio for music and select phones
- Apple CarPlay™ capability for compatible phones3
- Android Auto™ capability for compatible phones4
- Use, control and manage select smartphone apps through the Infotainment system
- Voice-activated technology for phone
- USB port(s)5 to play stored audio files through your vehicle's audio system
- Bluetooth®:
- Pair your compatible mobile phone to your vehicle's infotainment system1
- Place and receive hands-free phone calls
- Store your phone's contact list in the system to place an outgoing call quickly using the touch-screen display or voice command system
- With streaming audio capability, you can listen to files stored on your phone or Bluetooth digital media device
- HD Radio:
- Provides consumers with additional channels known as HD2, HD3 and HD4
- Transmits Program Service Data, such as song titles and artist information
- SiriusXM® with 360L trial subscription:
- Enjoy a 3-month trial subscription to the SiriusXM All Access package and enjoy the full SiriusXM with 360L experience1
- This vehicle is equipped with SiriusXM with 360L— a greater variety of SiriusXM content, a more personalized experience and easier navigation. For the full SiriusXM with 360L experience, a SiriusXM All Access Package is required. If you subscribe to a lower package, certain features of 360L will not be available
- With the All Access Package, you can also enjoy your favorites anywhere life takes you, with the SiriusXM app, online and at home on compatible connected devices
- May require additional optional equipment. Some features, including streaming content and listening recommendations require GM connected vehicle services
- May require additional optional equipment
- 17" LT235/80R17E all-terrain, blackwall spare tire:
- May require additional optional equipment
- Activated by switch located on center switch bank
- Illuminates the cargo bed area
- Provides light to find cargo in the bed
- Rear pillar lamps
- May require additional optional equipment
- With integrated CornerSteps
- May require additional optional equipment
- Helps make it easier to get into and out of the pickup bed
- Located at each end of the rear bumper
- Textured step pads to help provide secure footing
- Provides added protection from sun and glare
- Front bracket is included if displaying a front license plate is required in your state
- Six function tailgate design to help improve loading, unloading and access the cargo box
- Hitch area lighting
- Power lock and release
- May require additional optional equipment
- Help minimize glare in adverse driving conditions
- C-shaped LED headlamps with signature lighting and innovative light blade technology
- C-shaped LED taillamps with LED stop and reverse light
- Brighter and lasts longer than traditional incandescent bulbs
- Chrome mirror caps
- Power folding/extending
- Lower convex mirrors
- Heated upper glass
- Integrated turn signal indicators
- Puddle lamps
- Perimeter lighting
- Auxiliary lighting
- Extends 3.31-inches
- AT4 features molded in color Black mirror caps
- Helps to keep your rear view clear of fog or frost
- Utilizes a warming grid to remove fog or frost from the rear window
- The window switch is conveniently located in the overhead console for easy 1-touch operation
- May require additional optional equipment
- Helps keep spare tire secure
- Utilizes the same key as the door and ignition
- Provides a Black, textured, non-skid surface that helps protect the bed and minimizes cargo shifting
- Covers the entire bed surface below side rails, front box top rail, gauge hole plugs and tie-downs
- Chemically bonded, the sprayed-on liner permanently bonds to the truck bed, providing a watertight seal
- Includes logo
- Does not include spray-on liner on tailgate due to Black composite inner panel
- Hitch area lighting
- May require additional optional equipment
- 10-way power driver seat with power lumbar:
- Moves the seat forward and back, and up and down
- Tilt the seat cushion and seatbacks
- 10-way power front passenger seat:
- Forward and back
- Up and down
- Tilt seat cushion back and upright
- Recline seatback up and down
- Includes 2-way power lumbar
- 12-volt auxiliary front power outlet:
- May require additional optional equipment
- 3-prong auxiliary household-style outlet
- Located in the pickup bed
- May require additional optional equipment
- 3-prong auxiliary household-style outlet
- Located on the instrument panel
- Makes it convenient for powering laptops, phone chargers and other electronic devices
- May require additional optional equipment
- Includes driver personalization, warning messages and vehicle information
- Terms and limitations apply. See onstar.com or dealer for details.
- May require additional optional equipment
- Front A-pillar mounted for Driver and Passenger
- Rear B-pillar mounted
- Color-keyed to match the interior
- Located in instrument cluster
- Maintains a selected speed while driving
- Automatically disengages when the vehicle's traction control system needs to limit wheelspin on slippery surfaces or when the StabiliTrak® stability control system detects an oncoming skid
- Set and resume speed functions
- Steering-wheel mounted controls to easily maintain and manage cruising speed
- Recalls 2 driver presets for 10-way power seat and outside mirrors
- May require additional optional equipment
- Automatically maintains the selected temperatures for both the driver and front passenger
- Allows individual climate settings for both driver and front passenger
- Driver and front passenger can choose a temperature up to 30 degrees difference
- May require additional optional equipment
- Helps protect your interior from road debris and the elements
- Color-keyed to match the interior
- Denali models feature unique premium tufted carpeting
- Includes reconfigurable feature with cupholders, cell phone storage, power cord management and file holder capacity
- May require additional optional equipment
- Subject to terms. See onstar.com or dealer for details.
- May require additional optional equipment
- Separate buttons on the climate control panel allow you to choose from 3 levels of warmth
- At the touch of a button you can warm the cushions and seatbacks with multilevel temperature control
- Individually controlled
- Seats can be programmed to automatically warm up when it's cold out
- May require additional optional equipment
- At the touch of a button you can warm the cushions
- Provide comfort in cold weather for passengers in the rear outboard seating positions
- Passengers have their own controls to set the temperature
- May require additional optional equipment
- With the press of a button the steering wheel quickly heats up to provide additional comfort on a cold day
- May require additional optional equipment
- Checklist1
- Trailer light sequencing
- Trailer maintenance reminders
- Trailer security alerts
- Trailer mileage
- Tow/haul reminder
- Trailer electrical diagnostics
- Includes trailer tire pressure monitoring alert ONLY when (PTT) trailer tire pressure monitor system is factory ordered and sensors are installed
- May require additional optional equipment
- Automatically dims the inside rearview mirror when it senses bright light from behind
- When headlamp glare is no longer detected, the mirror returns to its normal state
- 6-gauge cluster
- Speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure
- With the Keyless Entry fob in your possession, conveniently locks and unlocks your car's doors without having to use the key fob
- With the vehicle in Park or Neutral, press the brake pedal and then press the engine start/stop button to start the engine; the green indicator on the button will illuminate
- Shift to Park and press the engine start/stop button to turn off the engine
- May require additional optional equipment
- Allows the driver to adjust the steering wheel up or down, and the steering column forward or back
- May require additional optional equipment
- Located in infotainment display
- Programmable
- Allows you to lock and unlock doors easily whether it's from the driver or front passenger seat or from outside using the key fob (when equipped)
- Quickly raises the window or lowers it with the touch of a button
- If obstruction is detected, the anti-pinch feature will auto-reverse
- Quickly raises the window or lowers it with the touch of a button
- If an obstruction is detected, the anti-pinch feature will auto-reverse
- Provides cabin comfort for rear occupants
- Helps protect your interior from road debris and the elements
- Color-keyed to match the interior
- Denali models feature unique premium tufted carpeting
- Helps to keep your rear view clear of fog or frost
- Utilizes a warming grid to help remove fog or frost from the rear window
- Helps prevent theft by allowing the steering wheel to operate only with the proper key fob
- May require additional optional equipment
- Allow the driver to easily operate the audio system and phone interface controls
- May require additional optional equipment
- Sounds the horn and flashes the turn signals when someone attempts to open the vehicle without the proper key or remote transmitter
- Helps deter unauthorized entry, helping to protect your vehicle
- May require additional optional equipment
- 2-Instrument Panel with bench seat, also includes 1 SD card reader (first row)1 (models equipped with front bench seat)
- 2-Inside Console with bucket seats, also includes 1 SD card reader and auxiliary jack1 (models equipped with front bucket seats)
- May require additional optional equipment
- Second row includes 2 USB charging-only ports1
- 3-channel programmable
- Conveniently activate compatible devices such as garage door openers, security systems, and home automation devices from inside your vehicle
- May require additional optional equipment
- Full-length bench seat
- Seatback storage on left and right side
- Center fold out armrest with 2 cupholders
- Underseat storage (full cab width)
- Separate buttons on the climate control panel allow you to choose from 3 levels of fan circulation
- Individually controlled
- Cooling feature includes both seatbacks and cushions
- Includes heated front seating
- May require additional optional equipment
- 220-amp alternator:
- May require additional optional equipment
- Requires a diesel engine
- Help reduce wheel lockup and maintain steering control during hard braking on most slippery surfaces
- DuraLife™ brake rotors feature a hardened surface to reduce corrosion and provide quieter braking with less vibration. DuraLife™ rotors are hardened and strengthened during the manufacturing process
- Brake system features a corrosion-fighting process called Ferritic Nitro-Carburizing (FNC) which can double rotor life expectancy and reduce or minimize rust over non-FNC coated rotors
- 445 hp [332 kW] @ 2800 rpm
- 910 b-ft. of torque [1220 Nm] @ 1600 rpm
- 3.42 rear axle ratio
- Exhaust brake
- Engine block heater
- Capped fuel fill
- Paired with an Allison® 10-speed automatic transmission
- Diesel Exhaust Fluid (DEF) fill located in fuel door
- Engine after run feature for cooling performance
- May require additional optional equipment
- Alerts the driver when the engine air filter needs replacement
- Electronically controlled with overdrive for smooth-shifting performance
- Tow/Haul mode that reduces shift cycling for better control and improved cooling when towing or hauling heavy loads
- Auto Grade Braking that automatically downshifts when needed to enable engine braking, helping to slow the vehicle on downhill grades and reduce brake wear (operates in Tow/Haul mode)
- May require additional optional equipment
- When the differential senses a significant difference in wheel speed, it locks to turn both rear wheels in unison for added traction
- The Eaton® Locker senses a difference in wheel speed of approximately 100 rpm
- 4-button control 2WD, Auto, 4WD, 4WD LO
- 2WD High for most on-road and highway situations
- 4WD High for snowy or wet roads when added traction is needed
- 4WD Low for deep sand, mud or snow to provide maximum torque to all 4 wheels
- When in AUTO mode, remains in 2WD mode until the system detects wheel slippage
- Automatically engages 4WD until traction is regained
- Neutral
- ONLY used for towing vehicle (Dinghy tow & Dolly tow capability)- allows vehicle to roll freely
- May require additional optional equipment
- Two front frame-mounted1
- Prevents paint scratches that can result from a tethered fuel cap
- Creates a tight seal around the fuel-pump nozzle when the nozzle is fully inserted
- Requires gasoline engine
- Reduces the amount of conventional braking needed while towing a heavy trailer or driving downhill
- Uses the variable vanes in the turbocharger to smoothly and quietly create additional back pressure in the engine to help slow the vehicle
- Works with the transmission's Tow/Haul mode and Auto Grade Braking to help the driver maintain the desired speed even on long, steep downgrades
- Switch activated
- May require additional optional equipment
- This system automatically adjusts steering based on speed, road conditions, and other inputs to help reduce driver fatigue
- Helps ease cold weather starts
- Heats the engine and engine block fluids
- Heavy-duty air-to-oil cooler
- Helps provides optimal transmission performance even when operating under a heavy load or towing a trailer
- May require additional optional equipment
- Heavy-duty air-to-oil cooler
- Helps extend engine oil life under heavy loads
- Hydroformed front section
- High-strength steel
- Hitch platform to accept Gooseneck or 5th wheel hitch
- Hitch platform with tray to accept ball and stamped box holes with caps installed
- Box mounted 7-pin trailer harness
- May require additional optional equipment
- Thick construction helps to trap more dirt before it can enter the air intake
- 80 Amp-hr
- Maintenance-free with rundown protection and retained accessory power
- May require additional optional equipment
- Integrated with the antilock brake system (ABS)
- Helps provide measured brake force signaling to electric-controlled trailer brake systems
- Trailer gain and output are displayed in the Driver Information Center
- Roll-formed high-strength steel
- Help protect the front underbody, oil pan, differential case and transfer case
- May require additional optional equipment
- Designed to help maintain handling and ride quality while towing a trailer or carrying a load
- Gooseneck / 5th Wheel Package:
- Gooseneck / 5th Wheel Prep Package
- Hitch platform to accept Gooseneck or Fifth-wheel hitch
- Hitch platform with tray to accept ball and stamped bed holes with caps installed
- Bed mounted 7-pin trailer harness
- Sierra includes trailer brake controller
- Sierra, SLE and SLT includes Spray-on bed liner
- SLT, AT4 and Denali includes Bed View Camera1
- May require additional optional equipment
- ProGrade Trailering System:
- Hitch Guidance with Hitch View1
- In-vehicle Trailering App
- SLT Convenience Package:
- Bucket seats
- Center console
- Heated and ventilated front seats
- Rear power sliding window
- Universal Home Remote
- 2 USB ports with auxiliary input1
- USB ports in center console
- Rear heated outboard seats on Crew Cab models
- LED roof marker lamps
- LED roof marker lamps are standard with Dual Rear Wheel models
- Trailering Package:
- Trailer Hitch1
- Trailering hitch platform
- Includes a 2.5" receiver hitch (with 2" insert), 4-pin and 7-pin connectors
- 7-wire electrical harness and 7-pin sealed connector for connecting your trailer's lights and brakes to your vehicle
- May require additional optional equipment
- Trailering Information Label:
- Provides max trailer ratings for tongue weight, conventional, gooseneck hitch and 5th wheel hitch
- LED Daytime Running Lamps:
- Daytime Running Lamps automatically illuminate signature lighting
- 6 airbags:
- Dual-stage frontal airbags for driver and front outboard passenger1
- Seat-mounted side-impact airbags for driver and front outboard passenger1
- Head-curtain airbags for outboard seating positions1
- Includes front outboard Passenger Sensing System for frontal outboard passenger airbag and illuminates a status light that indicates whether the airbag is on or off1
- Bed View Camera:
- Camera in the Center High Mount Stop Lamp (CHMSL) provides an elevated view of the truck bed from the back of the cab1
- Allows driver to see inside the cargo bed on the infotainment display to help with 5th wheel or gooseneck hitching and to check cargo
- Includes 2 Trailer Camera Provisions
- May require additional optional equipment
- HD Rear Vision Camera:
- Shows you a high-resolution digital image of the area directly behind your vehicle when you're in Reverse at low speeds1
- This may help you park and avoid nearby objects
- Tailgate must be in the raised position for the HD Rear Vision Camera to operate properly
- May require additional optional equipment
- Hitch Guidance:
- Displays a guideline on the Rear Vision Camera view when you're in Reverse to help line up your hitch to your trailer1
- When driving, Hitch Guidance allows you to briefly check your trailer using the Rear Vision Camera view
- Hitch Guidance with Hitch View:
- Displays a guideline on the Rear Vision Camera view when you're in Reverse to help line up your hitch to your trailer and offers a close-up Hitch View1
- When driving, Hitch Guidance with Hitch View allows you to briefly check your trailer connection using the Rear Vision Camera view
- When Hitch View is in use, automatically applies electric parking brake when shifting to Park
- May require additional optional equipment
- OnStar® & GMC Connected Services capable:
- Terms and limitations apply. See onstar.com or dealer for details.
- Rear Seat Reminder:
- Helps to remind the driver to check the back seat(s) before leaving the vehicle1
- Activates when rear doors are opened and closed up to 10 minutes before or anytime while your vehicle is on
- Under certain conditions, once the vehicle is switched off, designed to sound 5 audible chimes and display a visual message within the Driver Information Center
- Activates only once each time the vehicle is turned on and off, and would require re-activation on a second trip
- Teen Driver:
- This configurable feature lets you activate customizable vehicle settings associated with a key fob to help encourage better driving behavior1
- It can limit certain vehicle features, and automatically turns on certain safety systems if vehicle is equipped
- An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver
- Tire Pressure Monitoring System:
- Monitors the pressure in each tire and alerts you if there is a low-pressure condition in one or more of the tires1
- Includes Tire Fill Alert1
- StabiliTrak, electronic stability control system with traction control:
- Automatically helps enhance control, particularly during emergency maneuvers, by adjusting the brakes and engine torque to help you stay on your intended path
- Activates when vehicle sensors detect a difference between the driver's intended path and the direction the vehicle is actually travelling
- Includes Traction Control that detects wheel slippage and applies brake pressure and/or reduces engine power to help the driver maintain control when accelerating on wet or snow-covered roads
- Includes Brake Assist which detects rapid brake pedal applications due to emergency braking situations and provides additional braking via the Antilock Brake System (ABS) module
- Includes Trailer Sway Control
- Hill Start Assist
Dealer Notes
NA
KBB.com Consumer Reviews

Overall4.2Out of 5
- 5.0
2020 GMC Denali 3500 HD Duramax is a BEAST!
By Merlinsmerc | on Friday, January 22, 2021
Pulling a conventional 10,000 lb trailer over mountain passes is a whole new experience. Staying at the speed limit up long steep grades did not change the engine temperature. I feathered the accelerator up the mountain. The new 10 speed transmission is so smooth you cant feel it changing gears. This is my second GMC Denali Duramax, first being a 2016. I debated trading in for over a year, and am so happy I made the trade. Trailers always exceed by far the tongue weight posted on them, and in my case it came in at 1450 lbs. That exceeded my trucks posted maximum. The 2020 dually posts a 2,000 lb tongue weight, so now I can front load the trailer, and that reduces sway. If you can afford it, and have a heavy trailer, buy the truck!… - 5.0
Love our truck
By Ron | on Friday, December 11, 2020
The truck doesn’t have a sun roof which it was suppose to have… - 2.0
In shop for 13 weeks so far!
By Whip | on Monday, September 09, 2024
My truck has been in the shop for 13 weeks to this point with no end in sight. The Infotainment panel blew out which controls pretty much everything. Nice truck except if something goes wrong then, good luck! I would recommend looking at Fords and Rams and ask the question, how many vehicles do you have in your shop waiting for parts and for how long. I heard of one at my GMC dealership that has been waiting for 8 months! Only thing I get from GM is "we understand your frustration". Apparently they don't, or I would have my truck back long ago.…
Based on 6 consumer ratings for 2020–2025 models. | Privacy
*Pre-owned prices shown exclude tax, tag, and doc fees. Every effort is made to ensure accurate prices, options, and features, however, in the event of a mistake, dealer cannot be held liable.
- Blaise Price
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