Vehicle Details

2021 GMC Sierra 1500 AT4

Pre-Owned
Stock #: P8189A    VIN: 1GTU9EET8MZ122307
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BASIC INFO
  • Condition Pre-Owned
  • Year 2021
  • Make GMC
  • Model Sierra 1500
  • Trim Level AT4
  • Engine 3.0L I6
  • Transmission 10-Speed Automatic
  • Body Style 4D Crew Cab
  • Exterior Color Summit White
  • Interior Color Jet Black W/Kalahari Accents Leather
  • Mileage 96,196
  • Fuel Economy 22 City / 26 Highway
  • Price Call
DEALER COMMENTS
Diesel efficiency meets off-road capability in this 2021 GMC Sierra 1500 AT4 with 96,196 miles, standing out as a fresh trade built for drivers who want premium comfort, advanced tech, and serious truck capability.

Key Features & Highlights:

Performance & Capability:
• Duramax 3.0L Turbo-Diesel I6 engine
• 10-speed automatic transmission
• Off-road suspension with skid plates
• ProGrade Trailering System & integrated trailer brake controller

Safety & Driver Confidence:
• Driver Alert Packages I & II
• Forward Collision Alert & Automatic Emergency Braking
• Lane Keep Assist w/ Lane Departure Warning
• HD Surround Vision & rear camera mirror

Interior & Technology:
• Premium GMC infotainment system w/ navigation
• Bose premium sound system
• Head-up display & wireless charging
• Apple CarPlay & Android Auto

Interior Comfort:
• Heated & ventilated front seats
• Heated second row outboard seats
• Power sunroof
• Dual-zone climate control

Exterior Features:
• AT4 off-road styling
• Red recovery hooks
• Spray-on bedliner with AT4 logo
• 20'' aluminum wheels & sport steps

Sunset Chevrolet, 603 Harrison St in Tiny Overhead Sumner, part of the Sunset Auto Family. The exclusive home of Warranty Protection for Life — a limited Powertrain Warranty that’s honored at any ASE-certified repair facility in the U.S. and Canada. Available on all qualifying new and pre-owned vehicles for as long as you own it.
  • Equipment & Features
  • AT4 Preferred Package
  • AT4 Premium Package
  • Cargo Convenience Package
  • Driver Alert Package I
  • Driver Alert Package II
  • Preferred Equipment Group 4SB
  • Technology Package
  • Trailering Package
  • 6 Speakers
  • 6-Speaker Audio System Feature
  • AM/FM radio: SiriusXM with 360L
  • Premium audio system: GMC Infotainment System
  • Premium Bose 7-Speaker Sound System
  • Radio data system
  • Radio: Premium GMC Infotainment Sys w/Multi-Touch
  • Radio: Premium GMC Infotainment Sys w/Navigation
  • 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
  • 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
  • Performance Front Brake Kit (LPO)
  • Power Door Locks
  • Power Sunroof
  • Brake assist
  • Electronic Stability Control
  • Hill Descent Control
  • Delay-off headlights
  • Front fog lights
  • Fully automatic headlights
  • Perimeter Lighting
  • Panic alarm
  • Security system
  • Theft Deterrent System (Unauthorized Entry)
  • Adaptive Cruise Control
  • Speed control
  • 170 Amp Alternator
  • 220 Amp Alternator
  • Auxiliary External Transmission Oil Cooler
  • Engine Block Heater
  • Heavy-Duty Air Filter
  • AT4 High Clearance Step (LPO)
  • Auto-dimming door mirrors
  • Black Sport Step (LPO)
  • Body-Color Surround Grille
  • Bumpers: body-color
  • Heated door mirrors
  • IntelliBeam Automatic High Beam On/Off
  • LED Cargo Area Lighting
  • Power door mirrors
  • ProGrade Trailering System
  • Rear step bumper
  • Rear Wheelhouse Liners
  • Spray-On Pickup Bed Liner w/AT4 Logo
  • 2 USB Ports
  • 2 USB Ports (1st Row)
  • 4.2 Diagonal Color Display Driver Info Center
  • 4G LTE Wi-Fi Hotspot Capable
  • 8 Driver Information Center
  • All-Weather Floor Liners w/AT4 Logo (LPO)
  • Apple CarPlay/Android Auto
  • Auto-dimming Rear-View mirror
  • Automatic Emergency Braking
  • Bed View Camera
  • Color-Keyed Carpeting Floor Covering
  • Compass
  • Console-Mounted Safe (LPO)
  • 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
  • GMC Connected Access Capable
  • HD Rear Vision Camera
  • HD Surround Vision w/2 Trailer View Camera Provisions
  • Heated steering wheel
  • Illuminated entry
  • Lane Change Alert w/Side Blind Zone Alert
  • Lane Keep Assist w/Lane Departure Warning
  • Multicolor 15 Diagonal Head-Up Display
  • OnStar & GMC Connected Services Capable
  • Outside temperature display
  • Overhead console
  • Passenger vanity mirror
  • Rear Camera Mirror
  • Rear Cross Traffic Alert
  • Rear Dual USB Charging-Only Ports
  • Rear Prem Floor Liners w/Removable Carpet Insert
  • Rear reading lights
  • Rear seat center armrest
  • Rear Underseat Storage (LPO)
  • Safety Alert Seat
  • Tachometer
  • Telescoping steering wheel
  • Tilt steering wheel
  • Trip computer
  • Ultrasonic Front & Rear Park Assist
  • Voltmeter
  • 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
  • Perforated Leather-Appointed Front Seat Trim
  • Power passenger seat
  • Split folding rear seat
  • Ventilated Driver & Front Passenger Seats
  • Ventilated front seats
  • Passenger door bin
  • Hitch Guidance
  • Hitch Guidance w/Hitch View
  • In-Vehicle Trailering App
  • Integrated Trailer Brake Controller
  • Red Recovery Hooks
  • 18 x 8.5 Machined Aluminum Wheels
  • Alloy wheels
  • Wheels: 20 x 9 Machined Aluminum
  • Deep-Tinted Glass
  • Power Sliding Rear Window w/Rear Defogger
  • Variably intermittent wipers
  • 3.23 Rear Axle Ratio
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Sunset Mitsubishi / Kia makes no representations, expressed or implied, to any actual or prospective purchaser or owner of this vehicle as to the existence, ownership, accuracy, description or condition of the listed vehicle's equipment, accessories, price or any warranties. Any and all differences must be addressed prior to the sale of this vehicle. Vehicle pricing and availability subject to change without notice. All Pricing expires at midnight 07/12/2026. The price for listed vehicles as equipped does not include charges such as: Government fees and/or state or local taxes, license fee, registration fee, dealer documentary fee, finance charges, emissions testing fees, compliance fees, credit investigation, credit insurance, physical damage of liability insurance or delivery fees. WalkTheLot.com is not responsible for typographical or other possible errors. Please confirm all displayed data with the dealership.
LOCATION
Sunset Mitsubishi / Kia
910 Traffic Ave
Sumner, WA. 98390
Google Map

(253) 939-4507

Contact: Brian Michael

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https://walkthelot.com/inventory/detail/?did=2591&aid=2027&vin=1GTU9EET8MZ122307
Printed 07/11/2026 11:13 PM Eastern
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