Introducing the 2021 GMC Sierra 1500 SLT - a powerhouse of capability and refinement that's ready to elevate your driving experience. With its robust EcoTec3 5.3L V8 engine, 4-wheel drive, and impressive towing capacity, this truck is engineered to handle any task you throw its way. But the Sierra 1500 SLT is more than just brawn - it's also a premium-appointed vehicle that pampers you with a wealth of advanced features.
⢠TEXAS EDITION SLT PREMIUM PACKAGE
⢠DRIVER ALERT PACKAGE I
⢠X31 OFF-ROAD PACKAGE
⢠Cayenne Red Tintcoat exterior
⢠275/60R20SL all-terrain tires
Climb inside and you'll be surrounded by luxurious leather-appointed seating, heated and ventilated front seats, and a premium audio system that delivers an immersive listening experience. The intuitive GMC Infotainment System with Apple CarPlay and Android Auto integration keeps you connected and in control.
But the Sierra 1500 SLT isn't just about creature comforts - it's also a capable off-road warrior. The X31 Off-Road Package equips this truck with an off-road suspension, skid plates, and hill descent control, making it the perfect companion for your next adventure. And with the Driver Alert Package I, you'll enjoy added peace of mind with features like Front and Rear Park Assist, Lane Change Alert with Side Blind Zone Alert, and Rear Cross Traffic Alert.
Whether you're hauling heavy loads, navigating rugged terrain, or simply enjoying the ride, the 2021 GMC Sierra 1500 SLT is up to the task. With its impressive capabilities, premium amenities, and distinctive style, this truck is a true standout in the full-size segment.
We invite you to experience the power and refinement of the 2021 GMC Sierra 1500 SLT for yourself. Visit our showroom today and let us demonstrate how this exceptional vehicle can elevate your driving experience. We're confident you'll be impressed by its uncompromising performance and luxurious features.
Used 2021 GMCSierra 1500 SLT
- Exterior Color
- Cayenne Red Tintcoat
- Interior Color
- Dark Walnut/Slate
- Odometer
- 53,953 miles
- Fuel Economy
- 14/20 MPG City/Hwy
- Transmission
- Automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 3GTU9DED3MG151779
- Stock Number
- U3225
GMC
Sierra 1500
Highlighted Features
- Leather upholstery
- Automatic temperature control
- Wireless phone connectivity
- Front dual zone A/C
- Auto-dimming rearview mirror
- Split folding rear seat
- Memory seat
- Heated front seats
- Perimeter/approach lights
- Remote keyless entry
- Heated steering wheel
- Steering wheel mounted audio controls
Included Packages & Accessories
- Driver Alert Package I
- Preferred Equipment Group 4SA
- SLT Convenience Package
- Texas Edition 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
- Off-Road Suspension
- 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
- Brake assist
- Electronic Stability Control
- Hill Descent Control
- Delay-off headlights
- Front fog lights
- Fully automatic headlights
- Perimeter Lighting
- 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
- Texas Edition Badging
- X31 Hard Badge
- 2 USB Ports
- 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
- Lane Change Alert w/Side Blind Zone Alert
- OnStar & GMC Connected Services Capable
- Outside temperature display
- Overhead console
- Passenger vanity mirror
- Rear Cross Traffic Alert
- Rear Dual USB Charging-Only Ports
- Rear reading lights
- Rear seat center armrest
- Tachometer
- Telescoping steering wheel
- Tilt steering wheel
- Trip computer
- Ultrasonic Front & Rear Park Assist
- 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
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Front beverage holders
- Front dual zone A/C
- Heated steering wheel
- Illuminated entry
- Memory seat
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start: keyfob
- Remote keyless entry
- Speed control
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Speed-sensing steering
- 1st row LCD monitors: 2
- Primary LCD size: 8.0"
- Radio data system
- Smart device integration: Android Auto/Apple CarPlay
- Steering wheel mounted audio controls
- Wireless phone connectivity: Bluetooth
- Heated front seats
- Leather upholstery
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- Split folding rear seat
- Drive type: four-wheel
- Engine location: front
- Fuel economy city: 14mpg
- Fuel economy combined: 16mpg
- Fuel economy highway: 20mpg
- Fuel tank capacity: 24.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Standard fuel economy fuel type: gasoline
- Variable valve control
- Ground clearance (min): 205mm (8.1")
- Auto-dimming door mirrors
- Bumpers: chrome
- Door mirrors: chrome
- Heated door mirrors
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Trailer hitch receiver
- Trailer sway control
- Exterior body width: 2,063mm (81.2")
- Exterior height: 1,918mm (75.5")
- Exterior length: 5,885mm (231.7")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,655mm (65.2")
- Wheelbase: 3,744mm (147.4")
- Appearance: analog
- Compass
- Delay-off headlights
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Security system
- Traction control
Dealer Notes
KBB.com Consumer Reviews

Overall4Out of 5
- 3.0
Nice truck
By froggy | on Sunday, December 06, 2020
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.… - 5.0
Great Truck
By Mel | on Sunday, April 25, 2021
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.… - 5.0
Well done GM
By Tony | on Thursday, November 26, 2020
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!…
Based on 88 consumer ratings for 2019–2026 models. | Privacy
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