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  1. Kool Chevrolet
  2. Used Vehicles
  3. 2025
  4. GMC
  5. Sierra 1500
  6. SLT
Reduced by $1,000 since Jan 28, 2026

2025 GMC Sierra 1500 SLT

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Vehicle Information

VIN: 1GTUUDED6SZ115399
Stock #: SZ115399
Model Code: TK10543
  • Condition Used
  • Body Style Crew Cab
  • Exterior Color Sterling Metallic
  • Interior Color Jet Black, Perforated Leather-Appointed Front Outboard Seat Trim
  • Mileage 42,103
  • Fuel Economy
    City/Highway 15/19 MPG
  • Engine 5.3L EcoTec3 V8 engine
  • Transmission Automatic / 4WD
  • Fuel Type Gasoline Fuel

Highlighted Features

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

Dealer Comments

Discover the Pinnacle of Capability and Comfort in the 2025 GMC Sierra 1500 SLT

Elevate your driving experience with the exceptional 2025 GMC Sierra 1500 SLT. This remarkable truck is more than just a workhorse; it's a testament to engineering excellence, delivering unparalleled power, advanced technology, and a refined, luxurious interior that will redefine your expectations.

• **CHECK THIS OUT** This vehicle is certified with the 10 Year / Million Mile Warranty!
• Sterling Metallic
• Gray

Beneath the hood, the Sierra 1500 SLT boasts the powerful EcoTec3 5.3L V8 engine, paired with a responsive 10-Speed Automatic transmission and robust 4WD capabilities. With an impressive 15 MPG in the city and 19 MPG on the highway, this truck strikes the perfect balance between power and efficiency.

Elevate your driving experience with a host of premium features, including a Navigation System, Preferred Equipment Group 4SA, Standard Suspension Package, and Trailering Package. Enjoy the convenience of a 6-Speaker Audio System, SiriusXM with 360L, and Steering Wheel Audio Controls, all while staying connected with the seamless integration of Apple CarPlay and Android Auto.

Indulge in the ultimate in comfort and convenience with dual-zone automatic climate control, a power driver's seat with memory settings, and a heated steering wheel. The Sierra 1500 SLT also offers a wealth of advanced safety features, including Automatic Emergency Braking, Forward Collision Alert, and Lane Keep Assist with Lane Departure Warning, ensuring you and your loved ones arrive at your destination with confidence.

Elevate your towing and hauling capabilities with the Sierra 1500 SLT's impressive performance. The 120-Volt Bed Mounted Power Outlet and Integrated Trailer Brake Controller make it easy to power your gear and control your trailer with precision.

Experience the unparalleled blend of power, technology, and luxury in the 2025 GMC Sierra 1500 SLT. This exceptional truck is more than just a vehicle; it's a statement of your commitment to quality, performance, and the ultimate in driving satisfaction. Visit our showroom today and let us demonstrate why the Sierra 1500 SLT is the perfect choice for your next adventure.

Eligible Benefits

View AutoCheck report.

All Features

  • Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance
  • GMC Pro Safety includes (UEU) Forward Collision Alert, (UE4) Following Distance Indicator, (UKJ) Front Pedestrian Braking, (TQ5) IntelliBeam, (UHX) Lane Keep Assist with Lane Departure Warning, and (UHY) Automatic Emergency Braking (Includes (T8Z) Buckle to Drive.)
  • Rear axle, 3.23 ratio (Not available with (NHT) Max Trailering Package.)
  • Pickup bed
  • Push Button Start
  • Automatic Stop/Start
  • Auto-locking rear differential
  • Transfer case, single speed, electronic Autotrac with push button control (4WD models only)
  • Suspension Package, Standard
  • Four wheel drive
  • Frame, fully-boxed, hydroformed front section
  • Trailer brake controller, integrated
  • Recovery hooks, front, frame-mounted, Black
  • Cargo tie downs (12), fixed
  • Steering, Electric Power Steering (EPS) assist, rack-and-pinion
  • Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
  • Brake lining wear indicator
  • 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 header and chrome grille insert bars with gloss black accents.)
  • Headlamps, LED projectors with Fade-on/Fade-off animation, LED turn signals and Daytime Running Lamps
  • IntelliBeam, automatic high beam on/off (Included and only available with (PDI) GMC Pro Safety.)
  • Fog lamps, LED
  • Lighting, perimeter
  • Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
  • Mirrors, outside heated power-adjustable, power-folding and driver-side auto-dimming puddle lamps, side perimeter lighting and memory
  • Mirror caps, chrome
  • Wipers, front rain-sensing
  • 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, 13.4" diagonal Premium GMC Infotainment System with Google built in apps such as navigation and voice assistance, includes color touch-screen, 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
  • SiriusXM Trial Subscription
  • SiriusXM with 360L Trial Subscription SiriusXM with 360L transforms your customers' ride with our most extensive and personalized radio experience on the road. (IMPORTANT: The SiriusXM trial subscription is not provided on vehicles that are ordered for Fleet Daily Rental ("FDR") use. Trial subscription is subject to the SiriusXM Customer Agreement and privacy policy, visit www.siriusxm.com which includes full terms and how to cancel. All fees, content, features, and availability are subject to change. Some features require GM connected vehicle services.)
  • Audio system feature, 6-speaker system
  • Bluetooth for phone, connectivity to vehicle infotainment system
  • Wireless, Apple CarPlay / Wireless Android Auto
  • Steering wheel audio controls
  • Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
  • Seat trim, Perforated leather-appointed front outboard
  • 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, wrapped
  • Steering wheel, heated
  • Driver Information Center, enhanced, 12.3" diagonal reconfigurable multicolor digital display
  • GMC Premium information Display- 13.4" diagonal Multicolor touch screen
  • Compass, located in instrument cluster
  • Exterior Temperature Display, located in radio display
  • 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 includes remote keyless entry
  • Remote vehicle starter system
  • Cruise control, steering wheel-mounted
  • Theft-deterrent system, unauthorized entry
  • Steering column lock, electrical
  • USB Ports, 2, Charge/Data ports located on instrument panel
  • Power outlet, interior power outlet, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
  • USB ports, (2) charge-only, rear
  • Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) interior 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
  • Automatic Emergency Braking (Included and only available with (PDI) GMC Pro Safety.)
  • Front Pedestrian Braking (Included and only available with (PDI) GMC Pro Safety.)
  • 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 services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)
  • OnStar Basics (OnStar Fleet Basics for Fleet) Drive confidently with core OnStar services including remote commands, built-in voice assistance, real-time traffic and navigation, and Automatic Crash Response to help if you're in need. (OnStar Basics includes remote commands, Navigation, Voice Assistance, and Automatic Crash Response, for eligible vehicles with compatible software. For MY25 vehicles, OnStar Basics is standard for 8 years; OnStar plan, working electrical system, cell reception and GPS signal required. OnStar links to emergency services. Service coverage varies with conditions and location. Service availability, features and functionality vary by device and software version. See onstar.com for details and limitations.)
  • Hitch Guidance
  • HD Rear Vision Camera (Removed with (UV2) HD Surround Vision.)
  • Following Distance Indicator (Included and only available with (PDI) GMC Pro Safety.)
  • Forward Collision Alert (Included and only available with (PDI) GMC Pro Safety.)
  • Lane Keep Assist with Lane Departure Warning (Included and only available with (PDI) GMC Pro Safety.)
  • Seat Belt Adjustable Guide Loops, front row only
  • Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) GMC Pro Safety.)
  • Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
  • Rear Seat Reminder
  • Rear Seat Belt Indicator
  • DriveType
    • DriveType: Four Wheel Drive
  • Fuel Economy
    • City: 15 MPG
    • Hwy: 19 MPG
    • Combined: 17 MPG
  • Fuel System
    • Fuel System: Direct Injection
  • Fuel Tank Capacity
    • Fuel Tank Capacity: 24 gal
  • Fuel Type
    • Fuel Type: Gasoline Fuel
  • Horse Power
    • Horse Power: 355
  • Rear Wheel
    • Rear Wheel: Single
  • Trailering Capacity
    • Trailering Capacity: 9200 lbs
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May not represent actual vehicle. (Options, colors, trim and body style may vary)

The Manufacturer's Suggested Retail Price excludes tax, title, license, dealer fees and optional equipment. Dealer sets final price.