Vehicle Summary
Mileage
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MPG FUEL ECONOMY
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Performance
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Vehicle Description
Meet the 2023 GMC Sierra 1500 AT4, a sophisticated pickup truck built to handle both everyday driving and ambitious adventures. This Brown exterior truck combines capability with refined comfort, offering you a vehicle that doesn't compromise on either front.
- Power Sunroof
- CarbonPro Composite Bed with Hard Badge
- 20" Machined Aluminum Wheels with Carbon Grey Accents
- Technology Package with Rear Camera Mirror and 15" Head-Up Display
- MultiPro Audio System by Kicker
- Heated and Ventilated Front Seats
- Adaptive Cruise Control with Forward Collision Alert
- Lane Keep Assist with Lane Departure Warning
- HD Surround Vision with Multiple Cameras
- Automatic Emergency Braking with Pedestrian Detection
- Off-Road Suspension with Hill Descent Control
- Power Rake & Telescoping Steering Column
- Remote Vehicle Starter System
- Wireless Phone Projection with Apple CarPlay/Android Auto
- OnStar & GMC Connected Services
Powered by a 3.0L inline-six engine paired with a 10-speed automatic transmission and 4WD, this Sierra delivers an EPA-estimated 21 city and 23 highway MPG. The engine block heater ensures reliable cold-weather starts, while the 220-amp alternator supports demanding electrical loads. Off-road capability comes standard with the AT4 suspension tuning, auto-locking rear differential, and red recovery hooks—ready to handle rugged terrain with confidence.
The cabin reflects GMC's commitment to quality. Perforated leather seats with 10-way power adjustment and lumbar support welcome you every drive. The heated steering wheel and dual-zone automatic climate control create a personalized environment. Premium audio by Kicker and a navigation system keep you connected and entertained, while wireless charging and multiple USB ports power your devices.
Safety features work seamlessly in the background. Automatic emergency braking, rear pedestrian detection, and rear cross-traffic braking provide multiple layers of protection. The integrated trailer brake controller and hitch guidance make towing straightforward, while the bed view camera, surround vision, and ultrasonic park assist enhance awareness in tight situations.
The CarbonPro Edition distinguishes this truck with a durable composite bed, reducing weight while improving corrosion resistance. The spray-on bed liner with AT4 logo protects your cargo investment. Interior premium floor liners and perimeter lighting add practical refinement throughout.
This 2023 Sierra AT4 represents smart truck ownership—capability meeting sophistication. We invite you to visit our showroom to sit behind the wheel and experience what makes this truck genuinely worth your consideration.

Vehicle Features
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Interior
- Ventilated driver and front passenger seats
- Heated steering wheel
- Heated driver and front passenger seats
- Heated rear seats
- Leather front seat upholstery
- Driver seat power reclining, lumbar support, cushion tilt, fore/aft control and height adjustable control
- Dual-zone front climate control
- Voice-activated climate control
- Automatic climate control
- Power tilting steering wheel
- Power telescopic steering wheel
- Vinyl rear seat upholstery
- Rear console climate control ducts
- Bucket front seats
- Driver seat with 8-way directional controls
- Front seat center armrest
- Front passenger seat with 8-way directional controls
- Driver seat with 2-way power lumbar
- Front passenger seat with 2-way power lumbar
- Leatherette steering wheel
- Split-bench rear seat
- Fold-up rear seat cushion
- 60-40 folding rear seats
- Rear seat center armrest
- Seating capacity: 5
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Exterior
- Hitch Guidance vehicle to trailer hitching assist
- Trailer light test
- Trailer light malfunction warning
- Trailer theft alarm
- Trailer brake controller
- Trailer Sway Control (TSC) trailer sway control
- Trailering Assist Guidelines vehicle and trailer reverse assist with visual graphic guidance only
- Trailer hitch light
- Trailer wiring harness
- Class IV tow rating
- Trailer hitch
- 2 underbody skid plates
- Pickup bed extender
- Pickup bed-rail protectors
- Full-size spare tire with steel wheel
- Crank-down spare tire
- 2 front tow hooks
- LED in-box lighting
- 4 doors
- Body-colored front bumper
- Body-colored rear bumper
- Black fender flares
- Dark chrome grille
- Black side window trim
- Body-colored door handles
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Mechanical
- AutoTrac part and full-time 4WD
- Duramax 3L I-6 diesel direct injection, DOHC, variable valve control, intercooled turbo, diesel, engine with 305HP
- Duramax 3L I-6 DOHC
- Auto stop-start engine
- Intercooled turbo
- 10-speed automatic
- Tow/Haul Mode selectable mode transmission
- Transmission electronic control
- Sequential shift with steering wheel controls
- Automatic
- Four-wheel drive
- Two-Speed Transfer Case
- Off-road ride suspension
- Speed sensitive power steering
- Lock-up transmission
- Engine block heater
- Front mounted engine
- Compression ignition system
- Variable intake manifold
- Longitudinal mounted engine
- Aluminum engine block
- Aluminum cylinder head
- Overdrive transmission
- Powertrain type: ICE
- All-speed ABS and driveline traction control
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Safety
- Forward Collision Alert with Automatic Braking
- Front Pedestrian Braking
- HD Rear Vision Camera w/Hitch View rear mounted camera
- Lane Keep Assist with Lane Departure Warning
- Rear Cross Traffic Braking collision mitigation
- Predictive brake assist system
- Restricted driving mode/alerts
- Rear Pedestrian Alert rear pedestrian detection warning
- HD Surround Vision w/Hitch View aerial view camera
- Gauge cluster display size: 12.30
- Front mounted camera with washer
- Right side camera
- Left side camera
- Trailer Side Blind Zone Alert blind spot warning
- Following Distance Indicator
- IntelliBeam auto high-beam headlights
- Immobilizer
- Configurable instrumentation gauges
- StabiliTrak w/Proactive Roll Avoidance electronic stability control system with anti-roll
- Hill Descent Control (HDC)
- Hill Start Assist (HSA)
- Front and Rear Park Assist front and rear parking sensors
- LED daytime running lights
- LED brake lights
- Rain detecting wipers
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Entertainment
- Primary monitor touchscreen
- Bluetooth wireless audio streaming
- Bose speakers
- Premium GMC Infotainment System external memory control
- Internet radio capability
- Premium GMC Infotainment System voice activated audio controls
- AM/FM/satellite
- 2 total number of 1st row displays
- 13.4 inch primary display
- Amplifier
- 7 speakers
- Seek scan
- Radio data system (RDS)
- 3 month satellite trial subscription
- Fixed audio antenna
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Crash Safety Ratings
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OVERALL
5 STAR
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FRONT
4 STAR
SIDE
5 STAR
ROLLOVER
4 STAR
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Factory Warranty
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Powertrain warranty
60 month/60,000 miles
*Confirm any warranty information with dealer before purchase.Corrosion perforation warranty
72 month/100,000 miles
*Confirm any warranty information with dealer before purchase.Roadside warranty
60 month/60,000 miles
*Confirm any warranty information with dealer before purchase.
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Disclaimers
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Internet sale price must be presented at the time of sale and does not include dealer-installed items.
Pricing may include current promotions and/or incentives. Price does not include tax, tag, or registration fees. All prices include a $699.00 closing fee. Published prices are subject to change without notice to correct errors or omissions or due to inventory fluctuations.
While every effort has been made to ensure the accuracy of the information displayed, vehicle listings on this website may not reflect all accurate details. Accessories and colors may vary. All inventory is subject to prior sale. Vehicle photos may be for illustrative purposes only and may not match the exact vehicle. Please confirm all details and pricing with the dealership. Options, colors, trim, and body style may vary.
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