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Basics

Exterior color
Summit White
Interior color
Jet Black
Drivetrain
Four-wheel Drive
MPG
Fuel type
Diesel
Transmission
10-Speed Automatic
Engine
3.0L I6 24V DDI DOHC Turbo Diesel
VIN
3GTU9EET5MG400046
Stock #
18727
Mileage
36,173 mi.

Features

Convenience
  • Cooled Seats
  • Heated Seats
  • Heated Steering Wheel
  • Keyless Entry
  • Keyless Start
  • Remote Start
Entertainment
  • Apple CarPlay®
  • Bluetooth®
  • Premium Sound System
  • Satellite Radio
  • USB Port
Exterior
  • Alloy Wheels
  • Tow Hitch
  • Tow Hooks
Safety
  • Backup Camera
  • Brake Assist
  • Stability Control
Seating
  • Leather Seats
  • Memory Seat
Additional popular features:
LED Headlights, apple carplay/android auto, trailer assist
View all features

Features

These features are associated with this vehicle type. Contact the seller to confirm this specific vehicle has them.

  • 10-Way Power Driver Seat Adjuster W/Lumbar
  • 10-Way Power Passenger Seat Adjuster W/Lumbar
  • 12-Volt Rear Auxiliary Power Outlet
  • 120-Volt Bed Mounted Power Outlet
  • 120-Volt Instrument Panel Power Outlet
  • 170 Amp Alternator
  • 18 X 8.5 Machined Aluminum Wheels
  • 1st and 2nd row curtain head airbags
  • 2 Usb Ports
  • 2 Usb Ports (1st Row)
  • 220 Amp Alternator
  • 3.23 Rear Axle Ratio
  • 4 Door
  • 4-Wheel Disc Brakes
  • 4-wheel ABS Brakes
  • 4.2 Diagonal Color Display Driver Info Center
  • 4g Lte Wi-Fi Hotspot Capable
  • 6 Speakers
  • 6 USB ports
  • 6-Speaker Audio System Feature
  • ABS Brakes
  • ABS and Driveline Traction Control
  • AM/FM Radio: Siriusxm With 360l
  • Air Conditioning
  • Alloy Wheels
  • Anti-theft alarm system
  • Apple CarPlay/Android Auto mirroring
  • Apple Carplay/Android Auto
  • Audio System Premium Brand: GMC Infotainment System
  • Audio controls on steering wheel
  • Auto-Dimming Door Mirrors
  • Auto-Dimming Rear-View Mirror
  • Auto-Locking Rear Differential
  • Automatic Temperature Control
  • Automatic front air conditioning
  • Automatic locking hubs
  • Auxiliary External Transmission Oil Cooler
  • Black Sport Step (Lpo)
  • Bluetooth wireless phone connectivity
  • Body-Color Surround Grille
  • Body-colored bumpers
  • Brake Assist
  • Braking Assist
  • Bucket front seats
  • Bumpers: Body-Color
  • Center Console: Full with covered storage
  • Chrome w/body-color surround grille
  • Climate Controlled : Driver and passenger heated
  • Clock : Digital
  • Coil front spring
  • Color-Keyed Carpeting Floor Covering
  • Compass
  • Console-Mounted Safe (Lpo)
  • Cooled front seats
  • Cruise control
  • Cruise controls on steering wheel
  • Cupholders: Front and rear
  • Daytime running lights
  • Deep-Tinted Glass
  • Delay-Off Headlights
  • Diameter of tires: 18.0"
  • Digital Audio Input
  • Door pockets: Driver, passenger and rear
  • Door reinforcement: Side-impact door beam
  • Driver Door Bin
  • Driver Memory
  • Driver Vanity Mirror
  • Driver airbag
  • Driver seat memory
  • Driver's side electrochromatic auto-dimming mirrors
  • Dual Front Impact Airbags
  • Dual Front Side Impact Airbags
  • Dual front air conditioning zones
  • Dual illuminated vanity mirrors
  • Dual reverse tilt mirrors
  • Dusk sensing headlights
  • Electric Rear-Window Defogger
  • Electrical Lock Control Steering Column
  • Electrochromatic rearview mirror
  • Electronic Stability Control
  • Engine Block Heater
  • Engine immobilizer
  • External temperature display
  • Fixed antenna
  • Floor mats: Rubber w/carpet inserts front and rear
  • Floor-Mounted Center Console
  • Fold-up cushion rear seats
  • Front Anti-Roll Bar
  • Front Bucket Seats
  • Front Center Armrest
  • Front Dual Zone A/C
  • Front Fog Lights
  • Front Head Room : 43.0 "
  • Front Hip Room: 61.2"
  • Front Independent Suspension
  • Front Leg Room: 44.5"
  • Front Prem Floor Liners W/Removable Carpet Insert
  • Front Reading Lights
  • Front Shoulder Room: 66.0"
  • Front Stabilizer Bar : Bar
  • Front Ventilated disc brakes
  • Front Wheel Independent Suspension
  • Front and rear reading lights
  • Front fog/driving lights
  • Front suspension stabilizer bar
  • Fuel Capacity: 24.0 gal.
  • Fully Automatic Headlights
  • GMC Connected Access Capable
  • HD Rear Vision Camera
  • Headlights off auto delay
  • Heated 2nd Row Outboard Seats
  • Heated Door Mirrors
  • Heated Driver & Front Outboard Passenger Seating
  • Heated Front Seats
  • Heated driver mirror
  • Heated passenger mirror
  • Heated steering wheel
  • Heavy-Duty Air Filter
  • Hill Descent Control
  • Hitch Guidance
  • Hitch Guidance W/Hitch View
  • Illuminated Entry
  • In-Vehicle Trailering App
  • Independent front suspension classification
  • Instrumentation: Low fuel level
  • Integrated Trailer Brake Controller
  • Interior 120v Ac Power Outlet : 1
  • Keyless Open & Start
  • Keyless ignition w/ push button start & keyless door entry
  • LED Cargo Area Lighting
  • LED Low/High Beam Reflector Headlights
  • Leaf rear spring
  • Leaf rear suspension
  • Leather seat upholstery
  • Leather/metal-look steering wheel trim
  • Left rear passenger door type: Conventional
  • Low Tire Pressure Warning
  • Machined aluminum rims w/ painted accents
  • Manual Tilt-Wheel & Telescoping Steering Column
  • Manual child safety locks
  • Memorized Settings for 2 drivers
  • Memorized Settings including door mirror(s)
  • Memory Seat
  • Metal-look dash trim
  • Mobile hotspot internet access
  • Occupant Sensing Airbag
  • Off-Road Suspension
  • Onstar & GMC Connected Services Capable
  • Outside Temperature Display
  • Overall Width: 81.2"
  • Overhead Airbag
  • Overhead Console
  • Overhead console: Mini with storage
  • Panic Alarm
  • Passenger Airbag
  • Passenger Door Bin
  • Passenger Vanity Mirror
  • Perforated Leather-Appointed Front Seat Trim
  • Power Door Locks
  • Power Door Mirrors
  • Power Driver Seat
  • Power Front Passenger Windows W/Express Up/Down
  • Power Front Windows W/Driver Express Up/Down
  • Power Passenger Seat
  • Power Rear Windows W/Express Down
  • Power Steering
  • Power remote w/tilt down driver mirror adjustment
  • Power remote w/tilt down passenger mirror adjustment
  • Power retractable mirrors
  • Power windows
  • Preferred Equipment Group 4sb
  • Premium Audio System: GMC Infotainment System
  • Premium GMC Infotainment System
  • Privacy glass: Deep
  • Prograde Trailering System
  • Radio Data System
  • Radio: Premium GMC Infotainment Sys W/Multi-Touch
  • Rear Dual Usb Charging-Only Ports
  • Rear Head Room: 40.1"
  • Rear Hip Room: 60.2"
  • Rear Leg Room: 43.4"
  • Rear Prem Floor Liners W/Removable Carpet Insert
  • Rear Reading Lights
  • Rear Seat Center Armrest
  • Rear Shoulder Room: 65.2"
  • Rear Step Bumper
  • Rear View Camera
  • Rear Wheelhouse Liners
  • Rear Window Defroster
  • Rear center seatbelt: 3-point belt
  • Rear door type: Tailgate
  • Rear seats center armrest
  • Red Recovery Hooks
  • Remote Engine Start : Keyfob remote start
  • Remote Keyless Entry
  • Remote Vehicle Starter System
  • Remote activated exterior entry lights
  • Remote power door locks
  • Remote window operation
  • Right rear passenger door type: Conventional
  • Rigid axle rear suspension
  • Seatback storage: 2
  • Seatbelt pretensioners: Front
  • Security System
  • Short and long arm front suspension
  • Side airbag
  • Simulated wood/metal-look door trim
  • SiriusXM Satellite Radio
  • SiriusXM with 360L AM/FM/HD/Satellite
  • SiriusXM with 360L Satellite Radio
  • Siriusxm W/360l
  • Spare Tire Mount Location: Underbody w/crankdown
  • Speed Control
  • Speed-Sensing Steering
  • Speed-proportional electric power steering
  • Split Folding Rear Seat
  • Split rear bench
  • Spray-On Pickup Bed Liner W/At4 Logo
  • Stability controll with anti-roll
  • Steel spare wheel rim
  • Steering Wheel Audio Controls
  • Steering Wheel Mounted Audio Controls
  • Suspension class: Off-road
  • Tachometer
  • Telescoping Steering Wheel
  • Theft Deterrent System (Unauthorized Entry)
  • Tilt Steering Wheel
  • Tilt and telescopic steering wheel
  • Tire Pressure Monitoring System: Tire specific
  • Tires: Prefix: P
  • Tires: Profile: 65
  • Tires: Speed Rating: S
  • Tires: Width: 265 mm
  • Total Number of Speakers: 6
  • Traction Control
  • Trailer hitch
  • Trailering Package
  • Transmission hill holder
  • Trip computer
  • Two 12V DC power outlets
  • Type of tires: AT
  • Urethane shift knob trim
  • Variable intermittent front wipers
  • Variably Intermittent Wipers
  • Vehicle Emissions: LEV II
  • Ventilated Driver & Front Passenger Seats
  • Ventilated Front Seats
  • Video Monitor Location: Front
  • Voltmeter
  • Wheel Diameter: 18
  • Wheel Width: 8.5
  • Wheels: 20 X 9 Machined Aluminum

Vehicle history by AutoCheck

Accidents or damage
None reported
Clean title
Yes
1-owner vehicle
Yes
Personal use only
Yes
The vehicle history information is supplied by third parties. Cars.com and the Seller are not responsible for the accuracy of such information. Cars.com provides this service and materials without representations or warranties of any kind, either expressed or implied. Please see Cars.com Terms and Conditions for further information.

Seller’s info

Tom Gill Chevrolet

(10,192 reviews)
7830 Commerce Dr, Florence, KY 41042

Seller’s notes about this car

Summit White 2021 GMC Sierra 1500 AT4 4WD 10-Speed Automatic 3.0L I6 10-Speed Automatic, 4WD, Jet Black With Kalahari Accents Leather.Lifetime Oil Changes and Tire Rotations, plus PowerLife Warranty Home of the 48 Hour Money BACK Guarantee Recent Arrival! Odometer is 23082 miles below market average! 22/26 City/Highway MPGA Business of Character!!!
Experience the Tom Gill Advantage! Unlimited Car Washes for the life of your vehicle! 72-hour or 300-miles Exchange! $500 additional trade-in value towards your next purchase! Just to name a few of the Great Advantages you get with Tom Gill Chevrolet! See dealer for more details.

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Price history

Listed 13 days ago.
$700 total price reduction!
7/16/25 Listed $45,291
7/23/25 -$700 $44,591
Total price amount is based on price change information provided by the seller.

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Consumer reviews

See what others are saying about the 2021 GMC Sierra 1500.
(56 reviews)
Rating breakdown (out of 5):
  • Comfort 4.2
  • Interior 4.2
  • Performance 3.8
  • Value 3.6
  • Exterior 4.3
  • Reliability 3.5

Most recent consumer reviews

Bought a 2021 GMC Sierra SLT used 18k on it.

Bought a 2021 GMC Sierra SLT used 18k on it. Drove it 350 miles and the left band of lifter went bad,bent push rod and rocker arms. Got back and drove it about 300 miles and had the oil changed to make sure there was no metal in it from the work that was done. The next day I started up and it had 70+ pounds of oil pressur. Took it the dealer and now it is getting a new oil pump. This is a very nice truck to look at and drives nice but you should not have these kind of problems with a 50 thousand dollar truck. GM has paid fo6 all the fixes. Waiting to see what is next. Don't want to trade it in to give someone this problem. It suck to get a lemon.

Rating breakdown (out of 5):
  • Comfort 4.0
  • Interior 4.0
  • Performance 3.0
  • Value 3.0
  • Exterior 4.0
  • Reliability 1.0
  • Purchased a Used car
  • Used for Having fun
  • Does not recommend this car
3 people out of 3 found this review helpful. Did you?
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No recomiendo a nadie comprar GMC Denali antes de 70000

No recomiendo a nadie comprar GMC Denali antes de 70000 millas se daña el motor y antes de 80000 millas se daña las transmisión y el diferencial son pura belleza pero es un problema te cobran 14000 por el motor solo

Rating breakdown (out of 5):
  • Comfort 1.0
  • Interior 1.0
  • Performance 1.0
  • Value 1.0
  • Exterior 1.0
  • Reliability 1.0
  • Purchased a New car
  • Used for Transporting family
  • Does recommend this car
2 people out of 4 found this review helpful. Did you?
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This truck has a jerk when changing gears sometimes.

This truck has a jerk when changing gears sometimes. I enjoy the truck overall easy to handle and comfortable. Drive with ease sight is good when driving.

Rating breakdown (out of 5):
  • Comfort 5.0
  • Interior 5.0
  • Performance 4.0
  • Value 4.0
  • Exterior 5.0
  • Reliability 5.0
  • Does recommend this car
9 people out of 11 found this review helpful. Did you?
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See all 56 consumer reviews

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*Estimated payments are calculated by Cars.com and are for informational purposes only. We’ve estimated your taxes based on your provided ZIP code. These estimates do not include title, registration fees, lien fees, or any other fees that may be imposed by a governmental agency in connection with the sale and financing of the vehicle. Other taxes may apply. They do not represent a financing offer or a guarantee of credit from the seller. Actual terms vary by lender.

**Your Saved Vehicles list will be shared along with your contact information when you submit a vehicle request to a dealership. To opt out of this sharing, please view your options on Cars.com Privacy Notice.

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