New 2021 GMCSierra 1500 SLT Crew Cab

  • VIN: 3GTU9DED2MG415901
  • Stock: 16282
On The Lot
at MARKLEY MOTORS, INC.
Location Details
    Fuel Economy
    14.0/20.0 mpg City/Hwy
    Exterior Color
    Summit White
    Interior Color
    Jet Black, Perforated leather-appointed front outb
    Body
    Truck
    Transmission
    Automatic
    Drivetrain
    4WD
    Engine
    5.3L EcoTec3 V8 engine
    GMC Sierra 1500

    Stay Home, Stay Safe – We’ll Come to You

    • Video Walkaround

      Experience this vehicle via video call and ask us any questions you have.

      Schedule a Video Call
    • Test Drive At Home

      We’ll bring this vehicle to you for a no-obligation test drive.

      Request a Test Drive
    • Home Delivery

      We’ll deliver the vehicle you want to your home and help you complete the paperwork.

      Ask About Delivery

    Detailed Specifications

    • Basic
    • Corrosion
    • Drivetrain
    • Maintenance
    • Roadside Assistance
    • Warranty
    • Max seating capacity: 5
    • Fuel System: DI
    • Fuel tank capacity: 24 gal
    • Horsepower: 355 @ 5600
    • Towing capacity: 11700 lbs
    • 4G LTE Wi-Fi® hotspot capable:
      • Terms and limitations apply. See onstar.com or dealer for details.
      • Terms and limitations apply. See onstar.com or dealer for details.
      • May require additional optional equipment
    • 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
    • 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
      • Certain 21MY vehicles will not be equipped with HD Radio. Contact a dealer for details on a specific vehicle
    • SiriusXM Radio
    • SiriusXM with 360L Equipped with SiriusXM with 360L. Enjoy a trial subscription of the All Access package for the full 360L experience, with a greater variety of SiriusXM content, a more personalized experience and easier navigation. With the All Access package, you can also enjoy your favorites everywhere you go, with the SiriusXM app, online and at home on compatible connected devices. (IMPORTANT: The SiriusXM radio trial package is not provided on vehicles that are ordered for Fleet Daily Rental ("FDR") use. If you decide to continue service after your trial, the subscription plan you choose will automatically renew thereafter and you will be charged according to your chosen payment method at then-current rates. Fees and taxes apply. See the SiriusXM Customer Agreement at www.siriusxm.com for complete terms and how to cancel. All fees, content, features, and availability are subject to change. GM connected vehicle services vary by vehicle model and require active service plan, working electrical system, cell reception and GPS signal. See onstar.com for details and limitations.)
    • Steering-wheel mounted controls:
      • Allow the driver to easily operate the audio system and phone interface controls
      • May require additional optional equipment
    • Wireless Apple CarPlay/Wireless Android Auto capability for compatible phones:
      • Can use Apple CarPlay1 and Android Auto2 wirelessly
      • Apple CarPlay vehicle user interface is a product of Apple and its terms and privacy statements apply. Requires compatible iPhone and data plan rates apply. Apple CarPlay is a trademark of Apple Inc. Siri, iPhone and Apple Music are trademarks for Apple Inc, registered in the U.S. and other countries.
      • Android Auto vehicle user interface is a product of Google and its terms and privacy statements apply. Requires the Android Auto app on Google Play and a compatible Android smartphone. Data plan rates apply. You can check which smartphones are compatible at g.co/androidauto/requirements. Android, Google Play and Android Auto are trademarks of Google LLC.
      • May require additional optional equipment
    • 17" 255/80R17SL all-season, blackwall spare tire
    • 17" full-size spare steel wheel with Black finish
    • 20" 275/60R20SL all-terrain, blackwall tires
    • 20" polished aluminum wheels:
    • May require additional optional equipment
  • Cab-mounted cargo area lamps:
    • With switch in switch bank left of the steering wheel
    • Illuminates the cargo bed area
  • Cargo bed LED lighting:
    • Provides light to find cargo in the bed
    • Rear pillar lamps
  • Chrome door handles
  • Chrome front bumper
  • Chrome mirror caps
  • Chrome rear bumper:
    • With integrated CornerSteps
  • CornerStep rear bumper:
    • 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
  • Deep-tinted glass:
    • Provides added protection from sun and glare
  • Front license plate bracket:
    • Front bracket is included if displaying a front license plate is required in your state
  • Full chrome surround window moldings
  • GMC MultiPro Tailgate:
    • Six function tailgate design to help improve loading, unloading and access the cargo box
  • Grille (Chrome surround with high gloss Black mesh and Chrome inserts.)
  • LED fog lamps:
    • Help minimize glare in adverse driving conditions
  • LED reflector (high intensity) headlamps with LED turn signals and LED signature Daytime Running Lamps:
    • C-shaped LED headlamps with signature lighting and innovative light blade technology
  • LED signature tail lamps:
    • C-shaped LED taillamps with LED stop and reverse light
    • Brighter and lasts longer than traditional incandescent bulbs
  • MultiPro Audio System by Kicker:
    • A weatherproof audio package that fits the MultiPro exclusively. Bluetooth® sound streams from connected devices to the 2-channel, 100 watt, 50 watts RMS per-channel Tailgate Sound System. The illuminated display puts the user in charge of the programming track, volume and source
    • System operation that is completely independent of the interior audiosystem
    • Bluetooth®1 compatibility for wireless playback
    • 3.5mm and USB inputs for audio playbacks
    • A custom ABS baffle with full gasket sealing
    • A weatherproof amplifier hidden in the tailgate
    • May require additional optional equipment
  • Power sliding rear window with rear defogger:
    • 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
  • Rear wheelhouse liners:
    • Help protect your truck's rear wheelhouse area from damage caused by dirt, rocks, mud, road salt and the weather
  • Spare tire carrier lock:
    • Helps keep spare tire secure
    • Utilizes the same key as the door and ignition
  • Spray-on bedliner:
    • 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
  • Summit White
  • Tailgate and bed rail protection caps
  • Tailgate with EZ Lift assist, power lock & release:
    • Hitch area lighting
    • May require additional optional equipment
    • CUSTOMER DIALOGUE NETWORK
    • 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
  • 12-volt auxiliary rear power outlet
  • 120-volt box-mounted power outlet:
    • 3-prong auxiliary household-style outlet
    • Located in the pickup bed
    • May require additional optional equipment
  • 120-volt power outlet:
    • 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
  • 4.2" diagonal color Driver Information Center:
    • Includes driver personalization, warning messages and vehicle information
  • Assist handles:
    • Front A-pillar mounted for Driver and Passenger
    • Rear B-pillar mounted
  • Brake pad wear indicator
  • Carpeted floor covering:
    • Color-keyed to match the interior
  • Compass, located in instrument cluster
  • Cruise control:
    • 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
  • Driver memory:
    • Recalls 2 driver presets for 10-way power seat and outside mirrors
    • May require additional optional equipment
  • Dual-zone automatic climate control:
    • 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
  • Front bucket seats:
  • May require additional optional equipment
  • Front carpeted floor mats:
    • Helps protect your interior from road debris and the elements
    • Color-keyed to match the interior
    • Denali models feature unique premium tufted carpeting
  • Front center console:
    • Includes reconfigurable feature with cupholders, cell phone storage, power cord management and file holder capacity
    • May require additional optional equipment
  • GMC Connected Access capable:
    • Subject to terms. See onstar.com or dealer for details.
    • May require additional optional equipment
  • Heated driver and front outboard passenger seats:
    • 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
  • Heated rear outboard seats:
    • At the touch of a button you can warm the cushions and seatbacks
    • Provide comfort in cold weather for passengers in the rear outboard seating positions
    • Passengers have their own controls to set the perfect temperature
    • May require additional optional equipment
  • Heated steering wheel:
    • With the press of a button the steering wheel quickly heats up to provide additional comfort on a cold day
  • In-vehicle Trailering App:
    • 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
  • Inside rearview auto-dimming mirror:
    • 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
  • Instrumentation:
    • 6-gauge cluster
    • Speedometer, fuel level, engine temperature, tachometer, voltage and oil pressure
  • Jet Black, Perforated leather-appointed front outboard seat trim
  • Keyless Open and Start:
    • With the key fob in your possession, locks and unlocks your car's doors without having to use the key fob, increasing convenience
    • 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
  • Leather-wrapped steering wheel:
  • May require additional optional equipment
  • Manual tilt and telescoping steering column:
    • Allows the driver to adjust the steering wheel up or down, and the steering column forward or back
    • Provides extra comfort when entering or exiting the vehicle
  • Outside temperature display:
    • Located in infotainment display
  • Power door locks:
    • 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
  • Power windows:
    • Driver with express-up/down
    • May require additional optional equipment
  • Power windows:
    • Front passenger with express-up/down
    • May require additional optional equipment
  • Power windows with rear express-down:
  • May require additional optional equipment
  • Rear air vents:
    • Provides cabin comfort for rear occupants
  • Rear carpeted floor mats:
    • Helps protect your interior from road debris and the elements
    • Color-keyed to match the interior
    • Denali models feature unique premium tufted carpeting
  • Rear window defogger:
    • 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
  • Remote Start:
    • Start your vehicle remotely and step into a comfortably warmed or cooled vehicle, depending on the weather and your preset preferences
    • Locks doors and turns on parking lamps while the engine is running
    • Activates the climate control system
  • Steering column lock control:
    • Helps prevent theft by allowing the steering wheel to operate only with the proper key fob
  • Theft-deterrent unauthorized entry system:
    • 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
  • USB ports:
    • 2 located on instrument panel1
  • USB ports:
    • 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)
  • USB ports:
    • Second row includes 2 USB charging-only ports1
  • Universal Home Remote:
    • 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
  • Up-level rear seat with storage package:
    • Full-length bench seat
    • Seatback storage on left and right side
    • Center fold out armrest with 2 cupholders
    • Underseat storage (full cab width)
  • Ventilated driver and front passenger seats:
    • 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
    • May require additional optional equipment
    • 170-amp alternator:
    • May require additional optional equipment
  • 2-speed Autotrac Transfer Case:
    • 2WD HI mode
      • Vehicle operates in 2-wheel drive
      • In this mode the transfer case & front driveline hardware are disengaged to improve fuel economy
      • Suitable for routine driving on all road surfaces
    • 4WD Auto mode
      • 4WD Auto enables the transfer-case to provide the performance benefits of a full time active AWD system
      • The 4WD Auto controls automatically adjust torque in response to parameters such as driver inputs, wheel slip control, vehicle dynamic state (understeer/oversteer)
      • Ideal for wet or wintry conditions, but can be used on any road surface. Suitable for light off road usage
    • 4WD HI mode
      • Transfer case engages front driveline and power is transferred to both the front & rear axles
      • In 4WD HI the transfer case clutch maintains higher preemptive torque levels for increased traction vs 4WD Auto
      • Suitable for use on slippery road surfaces or off-road conditions such as deep sand, snow or rough terrain
    • 4WD LO mode
      • In 4WD Low the transfer case clutch maintains a high preemptive coupling torque to maximize traction and improve wheel control when climbing or descending steep grades or obstacles
      • Suitable for off road usage, steep terrain, deep snow or sand
      • Ideal for off road driving to maximize low speed traction and increase control on steep grades
    • Neutral
      • ONLY used for towing vehicle (Dinghy tow & Dolly tow capability)- allows vehicle to roll freely
    • May require additional optional equipment
  • 3.23 rear axle ratio:
  • May require additional optional equipment
  • 3.23 rear axle ratio:
  • May require additional optional equipment
  • 4-wheel antilock disc brakes:
    • Help reduce wheel lockup and maintain steering control during hard braking on most slippery surfaces
    • Duralife brake rotors have better resistance to corrosion to increase rotor life, minimize brake pulsation, and improve aesthetic appearance
    • Brake system features a corrosion-fighting process called "Ferritic Nitro Carburizing" which can double rotor life expectancy and reduce or minimize rust
  • 5.3L EcoTec3 V8 engine:
    • 355 hp [265 kW] @ 5600 rpm
    • 383 lb-ft of torque [518 Nm] @ 4100 rpm
    • Paired with either a 8-speed or 10-speed automatic transmission
    • Certain 21MY vehicles equipped with L84 engines with an 8-speed automatic transmission are not equipped with Dynamic Fuel Management. Contact a dealer for details about a specific vehicle
    • Vehicles not equipped with Dynamic Fuel Management technology will be less fuel efficient
    • May require additional optional equipment
  • 5.3L EcoTec3 V8 engine:
    • 355 hp [265 kW] @ 5600 rpm
    • 383 lb-ft of torque [518 Nm] @ 4100 rpm
    • Paired with either a 8-speed or 10-speed automatic transmission
    • Certain 21MY vehicles equipped with L84 engines with an 8-speed automatic transmission are not equipped with Dynamic Fuel Management. Contact a dealer for details about a specific vehicle
    • Vehicles not equipped with Dynamic Fuel Management technology will be less fuel efficient
    • May require additional optional equipment
  • 7,100 lbs. GVWR:
    • When properly equipped; includes weight of vehicle, passengers, cargo and equipment
    • May require additional optional equipment
  • 7,100 lbs. GVWR:
    • When properly equipped; includes weight of vehicle, passengers, cargo and equipment
    • May require additional optional equipment
  • 8-speed automatic transmission:
    • Electronically controlled with overdrive
    • Tow/Haul mode
      • Raises transmission upshift points to provide more power to accelerate with a trailer or heavy load
      • Raises downshift points to use engine compression to help slow the truck instead of merely braking
    • Powertrain Grade Braking
      • Automatically uses the engine and transmission to slow the truck to maintain desired speeds when driving downhill
      • Reduces brake wear and increases vehicle control
    • Cruise Grade Braking
      • Downshifts automatically to slow the truck as it drives downhill if it exceeds the cruise set speed by a certain amount
    • May require additional optional equipment
  • 8-speed automatic transmission:
    • Electronically controlled with overdrive
    • Tow/Haul mode
      • Raises transmission upshift points to provide more power to accelerate with a trailer or heavy load
      • Raises downshift points to use engine compression to help slow the truck instead of merely braking
    • Powertrain Grade Braking
      • Automatically uses the engine and transmission to slow the truck to maintain desired speeds when driving downhill
      • Reduces brake wear and increases vehicle control
    • Cruise Grade Braking
      • Downshifts automatically to slow the truck as it drives downhill if it exceeds the cruise set speed by a certain amount
    • May require additional optional equipment
  • Aluminized stainless-steel muffler and tailpipe
  • Automatic Stop/Start:
    • At complete stops, when drivers keep their foot on the brake pedal, and under certain conditions, the engine shuts off
    • When drivers remove their foot from the brake, the engine automatically restarts
    • Under certain circumstances, the engine will not shut off at a complete stop
    • This feature can be disabled with a switch on the center stack
    • Most vehicles built on or after 6-7-2021, equipped with a V8 engine and 10-speed automatic transmission are not equipped with Automatic Stop/Start and its content. Contact a dealer for details on a specific vehicle
    • Vehicles not equipped with Automatic Stop/Start will be less fuel efficient
  • Automatic locking rear differential:
    • 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
  • Battery, heavy-duty 730 cold-cranking amps/80 Amp-hr, maintenance-free with rundown protection and retained accessory power (Included and only available with (L84) 5.3L EcoTec3 V8 engine, (L3B) 2.7L Turbo engine and (L87) 6.2L EcoTec3 V8 engine.)
  • Black vertical recovery hooks:
    • Two front frame-mounted1
  • Capless fuel fill:
    • 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
  • Cargo tie-downs:
    • 12-fixed rated at 500 lbs. per corner
  • Dual-outlet exhaust:
    • Integrated into rear bumper
    • Premium exhaust outlets
    • Aluminized stainless-steel muffler and tailpipes
    • May require additional optional equipment
  • Electric Power Steering:
    • Increases or decreases the amount of assist depending on the steering wheel angle
    • Electric, rack-mounted with variable assist
    • The system delivers great on-center precision and confident performance at higher speeds
    • Steering assist is greater during low-speed maneuvers, such as parking
  • Emissions, Federal requirements
  • External auxiliary transmission oil cooler:
    • 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
  • External engine oil cooler:
    • Heavy-duty air-to-oil cooler
    • Helps prevent possible engine oil breakdown under heavy loads
  • Four wheel drive
  • Fully boxed frame:
    • Hydroformed front section
    • High-strength steel
  • Heavy-Duty Air Filter:
    • Thick construction helps to trap more dirt before it can enter the air intake
    • May require additional optional equipment
  • Hill Descent Control:
    • Uses antilock braking to help provide a smooth, controlled descent
    • Helps driver maintain control of the vehicle without depressing the brake pedal
    • Activates by pushing a button below the instrument panel
    • May require additional optional equipment
  • Integrated trailer brake controller:
    • 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
  • Not Equipped with Dynamic Fuel Management:
    • Vehicles not equipped with Dynamic Fuel Management will be less fuel efficient. See Dealer for details and exceptions
  • Pickup bed:
    • Roll-formed high-strength steel
  • Skid plates:
    • Help protect the front underbody, oil pan, differential case and transfer case
    • May require additional optional equipment
  • Trailer Tire Pressure and Temperature Sensors:
    • Set of 4 sensors
    • Sensors will be shipped loose with the truck and will need to be installed on trailer by customer
    • Additional or replacement sensors are available as GM Accessory
    • System is capable of monitoring up to 6 wheels
    • May require additional optional equipment
    • ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (U1D) 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
      • Rear heated outboard seats on Crew Cab models
    • SLT Preferred Equipment Group includes standard equipment
    • Trailering Package:
      • Trailer Hitch1
      • Trailering hitch platform
      • Includes a 2" receiver hitch, 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
      • Automatic locking rear differential
      • Hitch Guidance2
    • X31 Off-Road Package:
      • Off-Road suspension
      • Hill Descent Control
      • Skid plates
      • Heavy-duty air filter
      • Rancho® shocks
      • X31 hard badge
      • Integrated dual exhaust with SLE, Elevation Double Cab and SLT
      • Sierra (1SA) and SLE also includes:
      • Trailering Package
        • Trailer hitch, 7-pin and 4-pin connectors
        • Hitch Guidance1
      • Locking differential
      • 2-speed Autotrac Transfer Case
      • May require additional optional equipment
    • 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
    • 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 behavior
      • 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
      • Properly inflate tires to help optimize your vehicle's ride, handling and efficiency
      • 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 that senses how hard and fast a driver hits the brake pedal and gives extra braking assistance, if required
      • Includes Trailer Sway Control
      • Hill Start Assist

    Dealer Notes

    Powered by innovation, our 2021 GMC Sierra 1500 SLT Crew Cab 4X4 delivers what you demand in a truck backed by a bold Summit White design! Motivated by a 5.3 Liter EcoTec3 V8 offering 355hp to an 8 Speed Automatic transmission so you can tow, haul, and travel with ease. This Four Wheel Drive truck also rewards you with confident handling and can see nearly 20mpg on the highway. Chrome accents and bumpers bring out the stylish side of our Sierra, which is further enhanced by LED lighting, fog lamps, 18-inch alloy wheels, and the premium functionality of a ProGrade Trailering System and six-way MultiPro tailgate.

    Our SLT Crew Cab is a comfortable command post for your busiest days with heated leather power front seats, a heated leather steering wheel, dual-zone automatic climate control, keyless open/ignition, and 12V/120V power outlets. Keep your world close at hand with smart technology such as an 8-inch touchscreen, wireless Android Auto/Apple CarPlay, WiFi compatibility, Bluetooth, and a six-speaker sound system.

    GMC lets you drive with extra confidence knowing that StabiliTrak stability/traction control, trailer-sway control, hill-start assist, an HD backup camera, a rear-seat reminder, tire-pressure monitoring, ABS, and an array of airbags are on board. Achieve more every day in our precisely engineered Sierra 1500 SLT! Print this page and call us Now... We Know You Will Enjoy Your Test Drive Towards Ownership!

    We Value You As A Customer And Look Forward To Showing You What The MARKLEY DIFFERENCE Is All About. We've Been In Business For 84 Years For A Reason! Call Us Now At MARKLEY MOTORS At 1-970-226-2213. Price includes: $250 - Buick & GMC GM Financial Bonus Cash Program. Exp. 08/31/2021 $2500 - Buick & GMC Consumer Cash Program. Exp. 08/31/2021

    KBB.com Consumer Reviews

    Kelley Blue Book - KBB.com
    Overall3.7Out of 5
    • Nice truck

      By froggy on Sunday, December 06, 2020

      3.0
      I purchased this truck brand new and at 3900 miles I started to have a misfire. The warranty put a refurbished rebuilt engine in it. I was not aware that the warranty doesn't put new parts in just refurbished rebuilt parts. I traded in and lost my favorite blue truck. Not a fan of the whole process. Love the truck just not how the warranty went. I would not own another brand or model the 2020 is the nicest riding and looking. Just got a bad motor from the manufacture.
    • Great Truck

      By Mel on Sunday, April 25, 2021

      5.0
      I love it, I get compliments every where I go, and it apparently worth more than I paid for it brand new, a year and a half later. can't ask for much more than that.
    • Well done GM

      By Tony on Thursday, November 26, 2020

      5.0
      This truck has a 10 speed transmission that you can barely feel it shift. Traded in an F150 and test drove a similar equipped Ram. Although the Ram was nice, the styling of the GMC won me over, along with the tailgate! It also pulls my boat way better than the Ford, just smoother all around. The cabin is very quiet and the gas mileage is much better than V8 Ford. The cabin is super quiet and the ride is awesome. Love the adaptive cruise control too. The technology is fine and the screen is plenty big. Remember, you are driving this truck, not going to thr drive in! Most importantly, the controls are simple to use and Bose stereo sounds great! Oh, and I got it cheaper than the similar Ram too!

    New Arrivals

    • 2021 GMC Canyon Elevation Truck

      2021 GMC Canyon Elevation Crew…

      • $43,129

      Quick Specs

      View Details
    • 2021 GMC Sierra 1500 Elevation Truck

      2021 GMC Sierra 1500 Elevation…

      • $53,274

      Quick Specs

      View Details
    • 2021 Buick Envision Essence SUV

      2021 Buick Envision Essence

      • $43,064

      Quick Specs

      View Details