Faulkner Mazda Harrisburg

Reduced by $807 since Jan 26, 2026

2021 GMC Sierra 1500 Crew Cab Short Box 4-Wheel Drive SLT



In Stock

Visit our Store

Vehicle Information

VIN: 3GTU9DED2MG173160
Stock #: MG173160
Model Code: TK10543
  • Body Style TRUCK
  • Exterior Color Onyx Black
  • Interior Color Jet Black
  • Mileage 73,561
  • Fuel Economy
    City/Highway 14/20 MPG
  • Engine Gas V8 5.3L/325
  • Transmission Automatic / 4WD
  • Fuel Type Gas

Highlighted Features

Feature availability subject to final vehicle configuration. Please reference window sticker for more info.

Dealer Comments

Experience the power and sophistication of the 2021 GMC Sierra 1500 SLT. This exceptional full-size pickup boasts a commanding presence and a wealth of premium features that elevate the driving experience. • Fresh PA Inspection • Oil Lube and Filter change • LPO, 22" (55.9CM) HIGH GLOSS BLACK WHEELS • LPO, 22" (55.9 CM) 6-SPOKE LOW GLOSS BLACK WHEELS WITH MACHINED ACCENTS • SLT CONVENIENCE PACKAGE • Preferred Equipment Group 4SA • SLT Convenience Package • Trailering Package • Harmon Kardon Sound System • Radio: Premium GMC Infotainment Sys w/Multi-Touch • SiriusXM w/360L • Steering Wheel Audio Controls • Keyless Open & Start • ProGrade Trailering System • Heated 2nd Row Outboard Seats • Ventilated Driver & Front Passenger Seats Powered by the robust EcoTec3 5.3L V8 engine and paired with an 8-speed automatic transmission, this Sierra 1500 SLT delivers a commanding performance with exceptional efficiency. The 4-wheel drive system ensures confident handling in a variety of road conditions, while the impressive towing and payload capacities make this truck a true workhorse. The exterior of the Sierra 1500 SLT exudes a bold and sophisticated presence, with the sleek Black paint complemented by the striking 22-inch Black wheels. The chrome grille and accents add a touch of refined elegance, while the GMC MultiPro Tailgate Step Lights and LED Cargo Area Lighting provide both style and functionality. Step inside the cabin, and you'll be greeted by a wealth of premium amenities. The heated and ventilated front seats, along with the heated rear outboard seats, ensure year-round comfort. The Harman Kardon sound system delivers an exceptional audio experience, while the 8-inch touchscreen infotainment system with Apple CarPlay and Android Auto integration keeps you connected on the go. The Sierra 1500 SLT also boasts a comprehensive suite of advanced safety and driver-assistance features, including the ProGrade Trailering System, Hitch Guidance with Hitch View, and the In-Vehicle Trailering App. These technologies provide added peace of mind and make towing and maneuvering a breeze. Whether you're tackling tough jobs or seeking a premium daily driver, the 2021 GMC Sierra 1500 SLT is the perfect choice. Experience the perfect blend of power, capability, and luxury. Visit our showroom today to take this exceptional truck for a test drive and discover why it's the perfect fit for your needs.

Eligible Benefits

All Features

  • Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance
  • ProGrade Trailering System includes (PZ8) Hitch Guidance with Hitch View and (U1D) In-vehicle Trailering App
  • Rear axle, 3.23 ratio (Not available with (NHT) Max Trailering Package.)
  • Pickup bed
  • Auto-locking rear differential
  • Transfer case, single speed, electronic Autotrac with push button control (4WD models only)
  • Four wheel drive
  • Frame, fully-boxed, hydroformed front section
  • Trailer brake controller, integrated
  • Recovery hooks, front, frame-mounted, Black (Included with 4WD models. Included and only available on 2WD models with (PQB) Driver Alert Package I.)
  • Cargo tie downs (12), fixed, rated at 500 lbs per corner
  • Steering, Electric Power Steering (EPS) assist, rack-and-pinion
  • Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
  • Capless Fuel Fill
  • Exhaust, single outlet
  • Exhaust, aluminized stainless-steel muffler and tailpipe
  • Wheels, 18" x 8.5" (45.7 cm x 21.6 cm) 6-spoke machined aluminum with Dark Grey Metallic accents
  • Tires, 265/65R18SL all-season, blackwall
  • Tire, spare 265/70R17SL all-season, blackwall
  • Wheel, 17" x 8" (43.2 cm x 20.3 cm) full-size, steel spare
  • Wheelhouse liners, rear
  • Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
  • Bumper, front chrome lower
  • Bumper, rear chrome with bumper CornerSteps
  • CornerStep, rear bumper
  • Moldings, window surround, Chrome
  • Grille (Chrome surround with high gloss Black mesh and Chrome inserts.)
  • Headlamps, LED reflector (high intensity) with LED turn signals and LED signature Daytime Running Lamps
  • Fog lamps, LED
  • Taillamps, LED signature taillight with LED stop and reverse light
  • Mirrors, outside heated power-adjustable, power-folding and driver-side auto-dimming puddle lamps, side perimeter lighting and memory
  • Mirror caps, chrome
  • Glass, deep-tinted
  • Lamps, cargo area, cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
  • LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
  • Tailgate, GMC MultiPro Tailgate with six functional load/access features
  • Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
  • Tailgate and bed rail protection caps, top
  • Door handles, chrome
  • Audio system, Premium GMC Infotainment System with 8" diagonal color touch-screen, includes multi-touch display, AM/FM stereo Bluetooth® streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones, advanced voice recognition, in-vehicle apps, personalized profiles for infotainment and vehicle settings (Note: (PZ8) Hitch Guidance with hitch view is included with trim. Includes SiriusXM with 360L.)
  • HD Radio (Standard on vehicles built before 7-12-2021. Certain vehicles built on or after 7-12-2021 will include (RG0) Not Equipped with HD Radio, which removes (U2L) HD Radio. See dealer for details.)
  • 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.)
  • Audio system feature, 6-speaker system
  • Bluetooth® for phone connectivity to vehicle infotainment system
  • Wireless Phone Projection, for Apple CarPlay and Android Auto
  • Steering wheel audio controls
  • 4G LTE Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
  • Seats, front 40/20/40 split-bench with covered armrest storage and under-seat storage (lockable) (Not available with (PCY) SLT Convenience Package, (PDB) SLT Premium Package, (PDT) SLT Premium Plus Package or (PDW) Texas Edition SLT Premium Plus Package.)
  • Seat adjuster, driver 10-way power including lumbar
  • Seat adjuster, passenger 10-way power including lumbar
  • Seating, heated driver and front outboard passenger
  • Driver memory recalls driver "presets" for power driver seat and outside mirrors
  • Seat, Up-level Rear with Storage Package, 60/40 folding bench for Crew Cab models, includes full-length bench seat, seatback storage on left and right side, center fold out armrest with 2 cupholders, full cab width under-seat storage, (includes child seat top tether anchor)
  • Floor covering, color-keyed carpeting
  • Floor mats, carpeted front (Deleted when (RIA) All-weather floor liner, LPO is ordered or (BKF) Premium Floor Liners are ordered.)
  • Floor mats, carpeted rear (Deleted when (RIA) All-weather floor liner, LPO is ordered or (BKF) Premium Floor Liners are ordered.)
  • Steering column, manual Tilt-Wheel and telescoping
  • Steering wheel, leather-wrapped
  • Steering wheel, heated
  • Driver Information Center, 4.2" diagonal color display includes driver personalization
  • In-vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder and trailer electrical diagnostics
  • Compass, located in instrument cluster
  • Exterior Temperature Display, located in radio display
  • Brake lining wear indicator
  • Windows, power front, drivers express up/down
  • Window, power front, passenger express up/down
  • Windows, power rear, express down
  • Door locks, power
  • Keyless Open and Start
  • Remote vehicle starter system
  • Cruise control, steering wheel-mounted
  • Theft-deterrent system, unauthorized entry
  • Steering column, lock control, electrical
  • USB Ports (Instrument Panel with bench seat), 2 also includes 1 SD card reader (first row) With bucket seats, USB Ports are located inside console and includes auxiliary jack
  • Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
  • Power outlet, front auxiliary, 12-volt
  • USB ports, dual, charge-only (2nd row)
  • Power outlet, rear auxiliary, 12-volt
  • Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet)
  • Air conditioning, dual-zone automatic climate control
  • Air vents, rear
  • Defogger, rear-window electric
  • Mirror, inside rearview auto-dimming
  • Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
  • GMC Connected Access capable (Subject to terms. See onstar.com or dealer for details.)
  • StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
  • Daytime Running Lamps, LED signature lighting
  • Airbags, Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag (Always use seat belts and child restraints. Children are safer when properly secured in a rear seat in the appropriate child restraint. See the Owner's Manual for more information.)
  • OnStar and GMC connected services capable (Terms and limitations apply. See onstar.com or dealer for details.)
  • Hitch Guidance with Hitch View with image adjustment, Pan/Zoom/Tilt
  • Hitch Guidance
  • HD Rear Vision Camera
  • Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behavior. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. 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 with Tire Fill Alert (does not apply to spare tire)
  • Rear Seat Reminder

TRANSMISSION, 8-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED

  • with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (STD)

GVWR, 7100 LBS. (3221 KG)

  • (STD)

ENGINE, 5.3L ECOTEC3 V8

  • (355 hp [265 kW] @ 5600 rpm
  • 383 lb-ft of torque [518 Nm] @ 4100 rpm); featuring available Dynamic Fuel Management that enables the engine to operate in 17 different patterns between 2 and 8 cylinders
  • depending on demand
  • to optimize power delivery and efficiency (STD)

CENTER CONSOLE, FLOOR-MOUNTED

  • with cup holders
  • cell phone storage
  • power cord management
  • hanging file folder capability

LPO, 22" (55.9CM) HIGH GLOSS BLACK WHEELS

  • LPO wheels will come with 4 steel 22" wheels from the factory with alignment specs set to 22" LPO wheel selected (dealer-installed)

SLT PREFERRED EQUIPMENT GROUP

  • includes standard equipment

SEATS, FRONT BUCKET

  • with center console

SEATS, HEATED SECOND ROW OUTBOARD SEATS

  • (Included and only available with (PCY) SLT Convenience Package on vehicles built before 7-26-2021. Certain vehicles built on or after 7-26-2021 will include (RFU) Not Equipped with Heated Second Row Outboard Seats
  • which removes (KA6) Heated Second Row Outboard Seats. See dealer for details.)

SLT CONVENIENCE PACKAGE

  • includes (A50) bucket seats with (D07) center console
  • (KQV) ventilated front seats
  • (A48) rear sliding power window
  • (UG1) Universal Home Remote
  • (MCZ) 2 USB ports with auxiliary input (IP Mounted)
  • (MCR) 2 USB Ports/SD Card/Aux Jack (Inside Console with bucket seats) and (KA6) rear heated seats (KA6) Heated Second Row Outboard Seats are included on Crew Cab models built before 7-26-2021. Certain vehicles built on or after 7-26-2021 will include (RFU) Not Equipped with Heated Second Row Outboard Seats
  • which removes (KA6) Heated Second Row Outboard Seats. See dealer for details.)

AUDIO SYSTEM, PREMIUM GMC INFOTAINMENT SYSTEM WITH 8" DIAGONAL COLOR TOUCH-SCREEN, INCLUDES MULTI-TOUCH DISPLAY, AM/FM STEREO

  • Bluetooth® streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones
  • advanced voice recognition
  • in-vehicle apps
  • personalized profiles for infotainment and vehicle settings (Note: (PZ8) Hitch Guidance with hitch view is included with trim. Includes SiriusXM with 360L.) (STD)

  • REAR AXLE

  • 3.23 RATIO

    WHEELS

  • 22" TRANSIT STEEL WHEELS FOR LPO 22" WHEELS AND TIRES

    TIRE

  • SPARE 255/80R17SL ALL-SEASON
  • BLACKWALL

    EMISSIONS

  • FEDERAL REQUIREMENTS

    WINDOW

  • POWER
  • REAR SLIDING WITH REAR DEFOGGER

    USB PORTS

  • 2 (FIRST ROW) LOCATED ON INSTRUMENT PANEL

    JET BLACK

  • PERFORATED LEATHER-APPOINTED FRONT OUTBOARD SEAT TRIM

    SEATS

  • VENTILATED DRIVER AND FRONT PASSENGER

    TIRES

  • 275/50R22SL ALL-SEASON
  • BLACKWALL

    ONYX BLACK

    UNIVERSAL HOME REMOTE

  • Mileage
    • Fuel Economy Est-Combined (MPG): 16
    • EPA Fuel Economy Est - City (MPG): 14
    • EPA Fuel Economy Est - Hwy (MPG): 20
  • Electrical
    • Cold Cranking Amps @ 0° F (Primary): 730
    • Maximum Alternator Capacity (amps): 170
    • Maximum Alternator Watts: - TBD -
  • Cooling System
    • Total Cooling System Capacity (qts): - TBD -
  • Weight Information
    • Gross Axle Wt Rating - Front (lbs): 3800
    • Gross Axle Wt Rating - Rear (lbs): 3800
    • Curb Weight - Front (lbs): 2839
    • Curb Weight - Rear (lbs): 1976
    • Gross Vehicle Weight Rating Cap (lbs): 7100
    • Gross Combined Wt Rating (lbs): 15000
  • Trailering
    • Dead Weight Hitch - Max Trailer Wt. (lbs): 5000
    • Dead Weight Hitch - Max Tongue Wt. (lbs): 500
    • Wt Distributing Hitch - Max Trailer Wt. (lbs): 9200
    • Wt Distributing Hitch - Max Tongue Wt. (lbs): 920
    • Fifth Wheel Hitch - Max Trailer Wt. (lbs): 7800
    • Fifth Wheel Hitch - Max Tongue Wt. (lbs): 1950
    • Maximum Trailering Capacity (lbs): 11700
  • Suspension
    • Suspension Type - Front: Independent
    • Suspension Type - Rear: Solid Axle
    • Spring Capacity - Front (lbs): 3800
    • Spring Capacity - Rear (lbs): 3850
    • Axle Type - Front: - TBD -
    • Axle Type - Rear: - TBD -
    • Axle Capacity - Front (lbs): 3800
    • Axle Capacity - Rear (lbs): 3800
    • Axle Ratio (:1) - Front: 3.23
    • Axle Ratio (:1) - Rear: 3.23
    • Shock Absorber Diameter - Front (mm): 50
    • Shock Absorber Diameter - Rear (mm): 50
    • Stabilizer Bar Diameter - Front (in): 1.30
  • Brakes
    • Brake Type: Pwr
    • Brake ABS System: 4-Wheel
    • Disc - Front (Yes or ): Yes
    • Disc - Rear (Yes or ): Yes
    • Front Brake Rotor Diam x Thickness (in): 13.5 x 1.18
    • Rear Brake Rotor Diam x Thickness (in): 13.6 x 0.79
  • Tires
    • Front Tire Order Code: XCE
    • Front Tire Order Code: QDF
    • Rear Tire Order Code: XCE
    • Rear Tire Order Code: QDF
    • Spare Tire Order Code: QAQ
    • Spare Tire Order Code: XCQ
    • Front Tire Size: 275/50R22SL
    • Front Tire Size: 265/65R18SL
    • Rear Tire Size: 275/50R22SL
    • Rear Tire Size: 265/65R18SL
    • Spare Tire Size: 255/80R17SL
    • Spare Tire Size: 265/70R17SL
    • Front Tire Capacity (lbs): - TBD -
    • Rear Tire Capacity (lbs): - TBD -
    • Spare Tire Capacity (lbs): - TBD -
    • Revolutions/Mile @ 45 mph - Front: - TBD -
    • Revolutions/Mile @ 45 mph - Rear: - TBD -
    • Revolutions/Mile @ 45 mph - Spare: - TBD -
  • Wheels
    • Front Wheel Size (in): 22 x - TBD -
    • Front Wheel Size (in): 18 x 8.5
    • Rear Wheel Size (in): 22 x - TBD -
    • Rear Wheel Size (in): 18 x 8.5
    • Spare Wheel Size (in): 17 x - TBD -
    • Front Wheel Material: Aluminum
    • Rear Wheel Material: Aluminum
    • Spare Wheel Material: Steel
  • Steering
    • Steering Type: Electric Rack & Pinion
    • Steering Ratio (:1), On Center: - TBD -
    • Steering Ratio (:1), At Lock: - TBD -
    • Turning Diameter - Curb to Curb (ft): 46.9
    • Turning Diameter - Curb to Curb (ft): 46.3
    • Turning Diameter - Wall to Wall (ft): - TBD -
  • Frame
    • Frame Type: Hydroformed
  • Fuel Tank
    • Fuel Tank Capacity, Approx (gal): 24
    • Fuel Tank Location: - TBD -
  • Exterior Dimensions
    • Wheelbase (in): 147.43
    • Length, Overall (in): 231.72
    • Width, Max w/o mirrors (in): 81.24
    • Height, Overall (in): 75.51
    • Overhang, Front (in): - TBD -
    • Overhang, Rear w/o bumper (in): - TBD -
    • Front Bumper to Back of Cab (in): - TBD -
    • Cab to Axle (in): - TBD -
    • Cab to End of Frame (in): - TBD -
    • Ground to Top of Load Floor (in): - TBD -
    • Ground to Top of Frame (in): - TBD -
    • Frame Width, Rear (in): - TBD -
    • Ground Clearance, Front (in): 8.09
    • Ground Clearance, Rear (in): 8.09
  • Cargo Area Dimensions
    • Cargo Box Length @ Floor (in): 69.92
    • Cargo Box Width @ Top, Rear (in): - TBD -
    • Cargo Box Width @ Floor (in): 71.4
    • Cargo Box Width @ Wheelhousings (in): 50.63
    • Cargo Box (Area) Height (in): 22.4
    • Tailgate Width (in): - TBD -
    • Cargo Volume (ft³): 62.9
    • Ext'd Cab Cargo Volume (ft³): - TBD -
  • Interior Dimensions
    • Passenger Capacity: 5
    • Passenger Capacity: 6
    • Front Head Room (in): 43.03
    • Front Leg Room (in): 44.53
    • Front Shoulder Room (in): 66.02
    • Front Hip Room (in): 61.18
    • Second Head Room (in): 40.12
    • Second Leg Room (in): 43.4
    • Second Shoulder Room (in): 65.16
    • Second Hip Room (in): 60.24
  • Summary
    • Vehicle Name: GMC Sierra 1500
    • Body Style: Crew Cab Pickup
    • Body Code: E63
  • Emissions
    • Tons/yr of CO2 Emissions @ 15K mi/year: 11
Vehicles You Might Like
  • Call for Price FAULKNER PRICE


  • $12,999 Sale Price:


  • $30,683 Best Price


  • Call for Price FAULKNER PRICE


New, Used, Certified, Demo and Loaner Vehicles Prices do not include additional fees and costs of closing, including government fees and taxes, any finance charges, any dealer documentation fees, any emissions testing fees or other fees. All prices, specifications and availability subject to change without notice. Contact dealer for most current information