Used 2021 GMC Sierra 1500 SLT
75,852 mi.
Vehicle Details
This 2021 GMC Sierra 1500 SLT is a true workhorse, packed with premium features that elevate your driving experience. Boasting a powerful EcoTec3 5.3L V8 engine and 4-wheel drive capabilities, this Sierra is ready to tackle any terrain with confidence.
• SLT PREMIUM PACKAGE
• X31 OFF-ROAD PACKAGE
• SUNROOF, POWER
• Bed LINER, SPRAY-ON
• TIRES, 275/60R20SL ALL-TERRAIN, BLACKWALL
Slip behind the wheel and enjoy the refined cabin, complete with heated and ventilated leather-appointed seats, a heated steering wheel, and a premium audio system. The SLT Convenience Package and X31 Off-Road Package further enhance your driving comfort and capability, ensuring you’re prepared for any adventure.
This Sierra’s bold, muscular styling is complemented by its Satin Steel Metallic exterior, exuding a sophisticated and rugged presence. With its spacious interior, advanced technology, and impressive performance, this 2021 GMC Sierra 1500 SLT is the perfect blend of work and play.
Whether you’re hauling heavy loads, towing your favorite toys, or simply enjoying the open road, this Sierra is up for the task. Its 8-speed automatic transmission and 4-wheel drive system provide seamless power delivery and confident handling, while the spray-on bedliner and 120-volt power outlet in the Bed offer unparalleled utility.
Experience the uncompromising capability and premium features of this 2021 GMC Sierra 1500 SLT. Visit Killeen Certified today and let our knowledgeable team demonstrate how this exceptional truck can elevate your driving experience.
Why Choose Killeen Certified?
At Killeen Certified, we’re committed to giving every customer a Car-buying experience they can trust. Our bilingual staff is ready to assist you every step of the way — ¡Hablamos Español! — ensuring clear communication and comfort throughout your visit. Every vehicle on our lot is thoroughly inspected for quality and fuel efficiency, so you can drive with confidence. Plus, with flexible financing solutions and competitive trade-in options, we make upgrading your ride easier than ever. Conveniently located in the heart of Killeen, we’re proud to offer top-rated service and a team dedicated to helping you find the perfect vehicle.
THE DEALS ARE REAL AT KILLEEN CERTIFIED!
Standard Features
- Preferred Equipment Group 4SA
- SLT Convenience Package
- SLT Premium Package
- Trailering Package
- X31 Off-Road Package
- 6 Speakers
- 6-Speaker Audio System Feature
- AM/FM radio: SiriusXM with 360L
- Premium audio system: GMC Infotainment System
- Radio data system
- Radio: Premium GMC Infotainment Sys w/Multi-Touch
- SiriusXM w/360L
- Steering Wheel Audio Controls
- Air Conditioning
- Automatic temperature control
- Electric Rear-Window Defogger
- Front dual zone A/C
- Rear window defroster
- 12-Volt Rear Auxiliary Power Outlet
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Instrument Panel 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
- Remote keyless entry
- Remote Vehicle Starter System
- Steering wheel mounted audio controls
- Universal Home Remote
- Auto-Locking Rear Differential
- Electrical Lock Control Steering Column
- Heavy Duty Suspension
- Manual Tilt-Wheel & Telescoping Steering Column
- Speed-sensing steering
- Traction control
- 4-Wheel Disc Brakes
- ABS brakes
- Dual front impact airbags
- Dual front side impact airbags
- 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
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Dual Exhaust w/Premium Tips
- Panic alarm
- Security system
- Theft Deterrent System (Unauthorized Entry)
- Speed control
- 170 Amp Alternator
- Auxiliary External Transmission Oil Cooler
- Heavy-Duty Air Filter
- Auto-dimming door mirrors
- Bumpers: chrome
- Chrome Grille
- Chrome Wheel To Wheel Assist Steps
- Front License Plate Kit
- Heated door mirrors
- LED Cargo Area Lighting
- Power door mirrors
- ProGrade Trailering System
- Rear step bumper
- Rear Wheelhouse Liners
- Spray-On Pickup Bed Liner w/GMC Logo
- 2 USB Ports (1st Row)
- 4G LTE Wi-Fi Hotspot Capable
- Apple CarPlay/Android Auto
- Auto-dimming Rear-View mirror
- Color-Keyed Carpeting Floor Covering
- Compass
- Driver door bin
- Driver vanity mirror
- Floor-Mounted Center Console
- Front reading lights
- GMC Connected Access Capable
- Heated steering wheel
- Illuminated entry
- OnStar & GMC Connected Services Capable
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear Dual USB Charging-Only Ports
- Rear reading lights
- Rear seat center armrest
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Voltmeter
- 10-Way Power Driver Seat Adjuster w/Lumbar
- 10-Way Power Passenger Seat Adjuster w/Lumbar
- Front 40/20/40 Split-Bench Seat
- Front Bucket Seats
- Heated 2nd Row Outboard Seats
- Heated Driver & Front Outboard Passenger Seating
- Heated front seats
- Perf Leather-Appointed Front Outboard Seat Trim
- Power passenger seat
- Split folding rear seat
- Ventilated Driver & Front Passenger Seats
- Front Center Armrest w/Storage
- Passenger door bin
- Front Frame-Mounted Black Recovery Hooks
- Hitch Guidance
- Hitch Guidance w/Hitch View
- In-Vehicle Trailering App
- Integrated Trailer Brake Controller
- 20″ x 9″ Polished Aluminum Wheels
- Alloy wheels
- Wheels: 18″ x 8.5″ 6-Spoke Machined Aluminum
- Deep-Tinted Glass
- Power Sliding Rear Window w/Rear Defogger
- Variably intermittent wipers
- 3.23 Rear Axle Ratio
VEHICLE DATA
Certain specifications, prices and equipment data have been provided under license from Chrome Data Solutions (\’Chrome Data\’). © 2026 Chrome Data Solutions, LP. All Rights Reserved. This information is supplied for personal use only and may not be used for any commercial purpose whatsoever without the express written consent of Chrome Data. Chrome Data makes no guarantee or warranty, either expressed or implied, including without limitation any warranty of merchantability or fitness for particular purpose, with respect to the data presented here. All specifications, prices and equipment are subject to change without notice.
ESTIMATE MPG
EPA mileage ratings are supplied by Chrome Data Solutions, LP for comparison purposes only. Your actual mileage will vary, depending on how you drive and maintain your vehicle, driving conditions, battery pack age/condition (hybrid models only) and other factors.
Based on 2019 EPA mileage ratings. Your MPGe/MPG and driving range will vary depending on driving conditions, how you drive and maintain your vehicle, battery-pack age/condition, and other factors.
PRICING
Vehicle pricing is believed to be accurate. Tax, title and registration are not included in prices shown unless otherwise stated. Manufacturer incentives may vary by region and are subject to change. Vehicle information & features are based upon standard equipment and may vary by vehicle. Monthly payments may be higher or lower based upon incentives, qualifying programs, credit qualifications, residency & fees. No claims, or warranties are made to guarantee the accuracy of vehicle pricing, payments or actual equipment. Call to confirm accuracy of any information.
Manufacturer’s Rebate subject to residency restrictions. Any customer not meeting the residency restrictions will receive a dealer discount in the same amount of the manufacturer’s rebate.
