
2025 GMC Sierra 1500
Mileage: 32,619 · Castle Rock, CO
$1,213 Below market
2025 GMC Sierra 1500 AT4 Crew Cab 4WD
Castle Rock, CO
$55,499
Dealer rating
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Features
Mileage
32,619
Drivetrain
Four-Wheel Drive
Exterior color
Onyx Black
Interior color
Jet Black With Kalahari Accents
MPG
24 MPG
Engine
3L I6 Diesel
Fuel type
Diesel
Transmission
Automatic
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Overview
- Make:GMC
- Model:Sierra 1500
- Year:2025
- Trim:AT4
- Body type:Pickup Truck
- Exterior color:Onyx Black
- Interior color:Jet Black With Kalahari Accents
- Mileage:32,619 mi
- Condition:Used
- VIN:1GTUUEE87SZ143110
- Stock number:SZ143110C
Fuel economy
- Fuel tank size:24 gal
- Combined gas mileage:24 MPG
- City gas mileage:22 MPG
- Highway gas mileage:26 MPG
- Fuel type:Diesel
Performance
- Transmission:Automatic
- Drivetrain:Four-Wheel Drive
- Engine:3L I6 Diesel
Safety
Measurements
- Doors:4 doors
- Front legroom:44 in
- Back legroom:43 in
- Cabin size:Crew Cab
- Cargo volume:69 in
Options
History
Clean title
No issues reported.
0 accidents reported
No accidents or damage reported.
Pricing

Price decreased
2 days at this dealership
Dealer

Dealer reviews
Dealer's description
Meet the 2025 GMC Sierra 1500 AT4, a truck built to handle both the daily commute and serious off-road adventures with confidence and capability. - AT4 Preferred Package - AT4 Premium Package - 3.0L I6 Engine with 10-Speed Automatic and 4WD - Premium GMC Infotainment Audio System with SiriusXM 360L - Premium Bose 7-Speaker Sound System - Apple CarPlay and Android Auto (Wireless Compatible) - Navigation System - Multicolor 15" Head-Up Display - HD Surround Vision with Rear Camera Mirror - Heated and Ventilated Leather Front Seats - 10-Way Power Driver and Passenger Seat Adjusters with Lumbar Support - Power Sunroof - Spray-On Pickup Bedliner with GMC Logo - Trailering Package with Integrated Trailer Brake Controller - Technology Package with Wireless Charging and Wi-Fi Hotspot This truck delivers efficiency with an EPA-estimated 21 city and 24 highway MPG, so you won't sacrifice fuel economy for capability. The 3.0L I6 engine paired with a 10-Speed Automatic transmission provides smooth, responsive power in any condition, while the full-time 4WD system with an auto-locking rear differential and off-road suspension keeps you prepared for challenging terrain. The AT4 Premium Package elevates your driving experience with premium leather seating surfaces, heated and ventilated front seats, and a heated steering wheel for maximum comfort. A power sunroof adds an open-air element to your daily drives. Climate control is managed through automatic temperature control with dual front zones, ensuring passengers stay comfortable regardless of the season. Technology integrates seamlessly into your journey with the Premium GMC Infotainment Audio System, SiriusXM 360L satellite radio, and wireless Apple CarPlay and Android Auto connectivity. The multicolor 15" head-up display keeps critical information visible without distraction. A navigation system guides your route, while the wireless charging pad keeps your devices powered throughout the day. When it matters most, advanced safety systems work to protect you and your passengers. Automatic emergency braking, forward collision alert, lane keep assist with lane departure warning, and rear cross traffic braking provide additional layers of protection. HD surround vision with a rear camera mirror and bed view camera gives you confidence during parking and reversing maneuvers. Ultrasonic front and rear park assist helps you navigate tight spaces with ease. The Trailering Package includes an integrated trailer brake controller, hitch view camera, and in-vehicle trailering system app, making towing straightforward and controlled. Red recovery hooks and hitch guidance add to your towing readiness. A spray-on pickup bedliner with GMC Logo protects your truck bed from daily wear and weather. This 2025 Sierra 1500 AT4 in black represents a truck that refuses to compromisewhether you're seeking comfort, capability, or advanced technology. Schedule your visit to our showroom today to experience what this Sierra can do for your lifestyle.
Additional Information
Navigation System,AT4 Preferred Package,AT4 Premium Package,Preferred Equipment Group 4SB,Technology Package,Trailering Package,7 Speakers,AM/FM radio: SiriusXM with 360L,Premium Bose 7-Speaker Sound System,Radio data system,Radio: Premium GMC Infotainment Audio System,SiriusXM w/360L Trial Subscription,Steering Wheel Audio Controls,Air Conditioning,Automatic temperature control,Electric Rear-Window Defogger,Front dual zone A/C,Rear window defroster,120-Volt Bed Mounted Power Outlet,120-Volt Interior Power Outlet,Driver Memory,Memory seat,Power driver seat,Power Front Passenger Windows w/Express Up/Down,Power Front Windows w/Driver Express Up/Down,Power Rear Windows w/Express Down,Power steering,Power windows,Push Button Start,Remote keyless entry,Remote Vehicle Starter System,Steering wheel mounted audio controls,Universal Home Remote,Auto-Locking Rear Differential,Off-Road Suspension,Power Rake & Telescoping Steering Column,Speed-sensing steering,Traction control,4-Wheel Disc Brakes,ABS brakes,Dual front impact airbags,Dual front side impact airbags,Emergency communication system: OnStar,Front anti-roll bar,Front wheel independent suspension,Keyless Open & Start,Low tire pressure warning,Occupant sensing airbag,Overhead airbag,Power Door Locks,Power Sunroof,Brake assist,Electronic Stability Control,Hill Descent Control,Auto High-beam Headlights,Delay-off headlights,Front fog lights,Fully automatic headlights,Perimeter Lighting,Panic alarm,Security system,Theft Deterrent System (Unauthorized Entry),Speed control,220 Amp Alternator,Block heater,Heavy-Duty Air Filter,Auto-dimming door mirrors,Black Chrome Grille Insert Bars,Bumpers: body-color,Heated door mirrors,IntelliBeam Automatic High Beam On/Off,LED Cargo Area Lighting,Off-Road High Clearance Step (LPO),Power door mirrors,Rear step bumper,Rear Wheelhouse Liners,Spray-On Pickup Bedliner w/GMC Logo,2 Charge/Data USB Ports Inside Center Console,2 Type-C Charge-Only Rear USB Ports,2 USB Ports,Apple CarPlay/Android Auto,Auto-dimming Rear-View mirror,Automatic Emergency Braking,Bed View Camera,Buckle to Drive,Color-Keyed Carpeting Floor Covering,Compass,Driver door bin,Driver vanity mirror,Floor-Mounted Center Console,Following Distance Indicator,Forward Collision Alert,Front Pedestrian Braking,Front Prem Floor Liners w/Removable Carpet Insert,Front reading lights,HD Surround Vision,Heated steering wheel,Illuminated entry,Lane Keep Assist w/Lane Departure Warning,Multicolor 15" Diagonal Head-Up Display,OnStar Services Capable,Outside temperature display,Overhead console,Passenger vanity mirror,Rear Camera Mirror,Rear Cross Traffic Braking,Rear Pedestrian Detection,Rear Prem Floor Liners w/Removable Carpet Insert,Rear reading lights,Rear seat center armrest,Safety Alert Seat,Tachometer,Telescoping steering wheel,Tilt steering wheel,Trailer Camera Provisions,Trailer Side Blind Zone Alert,Trip computer,Ultrasonic Front & Rear Park Assist,Voltmeter,Wi-Fi Hotspot Capable,Wireless Apple CarPlay/Wireless Android Auto,Wireless Charging,10-Way Power Driver Seat Adjuster w/Lumbar,10-Way Power Passenger Seat Adjuster w/Lumbar,Front Bucket Seats,Front Center Armrest,Heated 2nd Row Outboard Seats,Heated Driver & Front Outboard Passenger Seating,Heated front seats,Heated rear seats,Perforated Front Leather Seat Trim,Power passenger seat,Split folding rear seat,Ventilated Driver & Front Passenger Seats,Ventilated front seats,Passenger door bin,Hitch Guidance,Hitch View,In-Vehicle Trailering System App,Integrated Trailer Brake Controller,Red Recovery Hooks,Alloy wheels,Wheels: 20" x 9" Machined Aluminum,Deep-Tinted Glass,Front Rain-Sensing Wipers,Power Sliding Rear Window w/Rear Defogger,Rain sensing wipers,Variably intermittent wipers,3.23 Rear Axle Ratio
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