Details

Exterior Color: Onyx Black
Interior Color: Jet Black with Kalahari accents
Body Style: Pickup
Transmission: 10-Speed Automatic

Stock: D5841
VIN: 3GTUUEE89SG202528
Mileage: 15
Engine: Turbocharged Diesel I6 3.0L/183
City MPG:
Highway MPG:

Highlights

Back-Up Camera
Back-Up Camera
Heated Seats
Heated Seats
Cooled Seat(s)
Cooled Seat(s)
Remote Start
Remote Start
Keyless Start
Keyless Start
4 wheel Drive
4 wheel Drive
Wifi
Wifi
Blind Spot Monitor
Blind Spot Monitor
Lane Keeping Assist
Lane Keeping Assist
Cross-Traffic Alert
Cross-Traffic Alert
Navigation
Navigation
Cruise Control
Cruise Control
Bluetooth
Bluetooth
Power Seat(s)
Power Seat(s)
Power Folding Mirrors
Power Folding Mirrors
Multi-Zone A/C
Multi-Zone A/C
Keyless Entry
Keyless Entry
Adaptive Cruise
Adaptive Cruise
Premium Sound
Premium Sound
Satellite Radio
Satellite Radio
Smartphone Integration
Smartphone Integration
Steering Wheel Controls
Steering Wheel Controls
Anti Lock Braking System
Anti Lock Braking System
Lane Departure Warning
Lane Departure Warning
Rain Sensing Wipers
Rain Sensing Wipers
Backup Camera / Assist
Backup Camera / Assist

Overview

Conquer the Canadian Terrain with the 2025 GMC Sierra 1500 AT4: Unmatched Diesel Power Advanced Technology and Off-Road Capability in a Stunning Onyx Black Finish

Experience the ultimate blend of power and sophistication with the 2025 GMC Sierra 1500 AT4. Designed for the discerning driver who demands more from their truck this beast is powered by a robust Duramax 3.0L Turbo-Diesel I6 engine delivering an impressive 305 horsepower and a torque of 495 lb-ft. Perfect for tackling the rugged Canadian landscape its 4x4 drivetrain and Off-Road High Clearance Steps ensure you dominate any terrain with confidence. The 10-speed automatic transmission with Electronic Precision Shift offers seamless gear changes enhancing your driving experience whether you're towing heavy loads or cruising the open road.

Inside the Sierra 1500 AT4 offers a luxurious Jet Black/Kalah interior complete with all-weather floor liners featuring the AT4 logo ensuring your cabin remains pristine no matter the adventure. The advanced Technology Package includes a Multicolour 15'' Diagonal Head-Up Display and Rear Camera Mirror keeping you informed and in control at all times. With the AT4 Premium Package this truck is not just a vehicle; it's a statement of strength and style. Embrace the journey with the 2025 GMC Sierra 1500 AT4 where every drive is an adventure waiting to happen.

Dean Cooley GM has been serving the Parkland area since 1995 and we are proud to have contributed to the area's automotive needs for almost three decades. Specializing in Chevrolet Buick and GMC vehicles along with certified pre-owned options we take pride in matching you with the perfect vehicle to suit your needs. Our in-house financial experts are dedicated to simplifying the financing and leasing process offering personalized solutions. At the heart of our operation lies our service department complete with a cutting-edge collision and glass center. Here we service all makes and models with meticulous precision and care. We also have a comprehensive parts department stocked with essential parts accessories and tires – all conveniently located under one roof. Visit us today at 1600 Main Street South in Dauphin and experience a new standard in the automotive industry. Dealer permit #1693.

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Options

Onyx black
AT4 PREFERRED EQUIPMENT GROUP includes standard equipment
TRANSMISSION 10-SPEED AUTOMATIC WITH ELECTRONIC PRECISION SHIFT ELECTRONICALLY CONTROLLED with overdrive tow/haul mode and steering column paddle shifters. Includes Cruise Grade Braking and Powertrain Grade Braking (STD)
REAR AXLE 3.23 RATIO
LPO ALL-WEATHER FLOOR LINERS 1ST AND 2ND ROWS (includes AT4 logo)
LPO OFF-ROAD HIGH CLEARANCE STEPS (dealer-installed)
ONYX BLACK
Auxiliary Audio Input
Tow Hitch
Automatic Highbeams
Tires - Rear All-Terrain
Bluetooth Connection
Satellite Radio
Tow Hooks
Front Collision Mitigation
ABS
Conventional Spare Tire
Tires - Front All-Terrain
Front Collision Warning
Cooled Front Seat(s)
Integrated Tailgate Step
Floor Mats
Bluetooth Connection
Passenger Adjustable Lumbar
Driver Adjustable Lumbar
Rain Sensing Wipers
LED Headlights
Requires Subscription
Mirror Memory
Premium Sound System
Steering Wheel Audio Controls
Daytime Running Lights
WiFi Hotspot
Rear Bench Seat
Navigation System
Heated Mirrors
Privacy Glass
Seat Memory
Heated Rear Seat(s)
Bluetooth Connection
MP3 Capability
Security System
Power Windows
Heated Steering Wheel
Keyless Start
Remote Engine Start
MP3 Capability
Adaptive Cruise Control
Passenger Air Bag
Traction Control
Auto-Dimming Rearview Mirror
Front Collision Mitigation
Front Collision Warning
Front Collision Warning
Multi-Zone A/C
Front Collision Mitigation
Passenger Air Bag Sensor
Telematics
Aerial View Display System
Lane Departure Warning
Front Collision Warning
Rear Parking Aid
Cross-Traffic Alert

Jet black with kalahari accents, perforated leather front seat trim
SUNROOF POWER
AT4 PREMIUM PACKAGE includes (PDO) AT4 Preferred Package and (VXW) Off-Road High Clearance Steps
TECHNOLOGY PACKAGE includes (DRZ) Rear Camera Mirror and (UV6) Multicolour 15" Diagonal Head-Up Display (Includes (UVN) Bed View Camera.)
GVWR 7200 LBS. (3266 KG) (STD)
ENGINE DURAMAX 3.0L TURBO-DIESEL I6 (305 hp [227 kW] @ 3750 rpm 495 lb-ft of torque [671 Nm] @ 2750 rpm) (Includes (KW5) 220-amp alternator and (K05) engine block heater.) (STD)
JET BLACK WITH KALAHARI ACCENTS PERFORATED LEATHER FRONT SEAT TRIM
Power Windows
4-Wheel Disc Brakes
Lane Keeping Assist
Four Wheel Drive
Keyless Start
Requires Subscription
Locking/Limited Slip Differential
Turbocharged
Lane Departure Warning
Aluminum Wheels
Power Steering
Auxiliary Audio Input
Power Mirror(s)
Floor Mats
Heated Front Seat(s)
Pass-Through Rear Seat
Fog Lamps
AM/FM Stereo
Variable Speed Intermittent Wipers
Heated Front Seat(s)
Smart Device Integration
Power Folding Mirrors
Power Passenger Seat
Automatic Highbeams
Power Driver Seat
Bed Liner
Intermittent Wipers
Bucket Seats
Satellite Radio
Leather Seats
Smart Device Integration
Mirror Memory
MP3 Capability
Adjustable Steering Wheel
Keyless Entry
Auxiliary Audio Input
Cruise Control
Power Windows
Power Door Locks
Power Door Locks
Front Head Air Bag
Stability Control
Driver Air Bag
Telematics
Daytime Running Lights
Requires Subscription
Front Side Air Bag
Rear Head Air Bag
Climate Control
Rear Defrost
Driver Monitoring
Tire Pressure Monitor
Requires Subscription
Blind Spot Monitor
Lane Keeping Assist
Back-Up Camera

Interior

Adaptive Cruise Control
Air vents, rear
Audio System, 13.4 " diagonal Premium GMC Infotainment System with Google built in apps such as navigation and voice assistance, includes colour touch-screen, multi-touch display, AM/FM stereo Bluetooth streaming audio for music and most phones; featuring wireless Android Auto and Apple CarPlay capability for compatible phones
Bose Sound System, premium 7-speaker system with Richbass woofer
Centre Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
Defogger, rear-window electric
Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
Exterior Temperature Display, located in radio display
GMC Premium information Display-13.4" diagonal Multicolour I touch screen
Keyless Open and Start includes remote keyless entry
Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) interior power outlet)
Premium Floor Liners with removable carpet insert, front
Remote vehicle starter system
Seat adjuster, passenger 10-way power including lumbar
Seating, heated driver and front outboard passenger
Seats, heated second row outboard seats
SiriusXM
Steering column lock, electrical
Steering wheel audio controls
Steering wheel, wrapped
USB ports, (2) charge-only, rear
USB Ports, 2, Charge/Data ports located inside centre console
Window, power front, passenger express up/down
Windows, power rear, express down
Wireless, Apple CarPlay / Wireless Android Auto

Air conditioning, dual-zone automatic climate control
Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
Bluetooth for phone connectivity to vehicle infotainment system
Brake lining wear indicator
Compass, located in instrument cluster
Door locks, power
Driver memory recalls driver "presets" for power driver seat and outside mirrors
Floor covering, colour-keyed carpeting
In-Vehicle Trailering App, System includes checklist, trailer maintenance reminders, trailer security alerts, trailer mileage, tow/haul reminder, trailer electrical diagnostics and Trailer Tire Pressure Monitor System module
Mirror, inside rearview auto-dimming
Power outlet, interior power outlet, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
Premium Floor Liners with removable carpet insert, rear
Seat adjuster, driver 10-way power including lumbar
Seat, Up-level Rear with Storage Package, 60/40 folding bench for Crew Cab models, includes full-length bench seat, seatback storage on left and right side, centre fold out armrest with 2 cupholders, full cab width under-seat storage, (includes child seat top tether anchor)
Seats, front bucket with centre console
Seats, ventilated driver and front passenger
SiriusXM with 360L Trial Subscription. SiriusXM with 360L transforms your customers' ride with our most extensive and personalized radio experience on the road. (Certain features and/or content may not be available unless an active data connection is enabled in the vehicle. Content varies by SiriusXM subscription plan. Features and display may vary by vehicle. All SiriusXM services require a subscription, sold separately by SiriusXM after the trial period. Your SiriusXM service will automatically stop at the end of your trial unless you decide to subscribe. If you decide to continue service after your trial, the subscription plan you choose will continue for an indeterminate term and you will be charged according to your chosen payment method at the then-current rates unless and until you cancel. Taxes apply. Please see the SiriusXM Customer Agreement at siriusxm.ca/terms for complete terms and how to cancel, which includes calling SiriusXM at 1-888-539-7474. All rates, content, and programming are subject to change. SiriusXM uses personal information in accordance with SiriusXM Privacy Policy, available at siriusxm.ca/privacy. SiriusXM Canada Inc. "SiriusXM", the SiriusXM logo, channel names and logos are trademarks of Sirius XM Radio Inc. and are used under license.)
Steering column, power rake and telescoping
Steering wheel, heated
Theft-deterrent system, unauthorized entry
USB Ports, 2 (first row) located on console
Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.ca or dealer for details.)
Windows, power front, drivers express up/down
Wireless charging

Mechanical

Air filter, heavy-duty
Auto-locking rear differential
Battery, heavy-duty 850 cold-cranking amps/95 Amp-hr, maintenance-free with rundown protection and retained accessory power (Included and only available with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
Capless Fuel Fill
Electronic Precision Shift and steering column paddle shifters
Exhaust, dual system (Includes chrome exhaust tips. Not available with (L87) 6.2L EcoTec3 V8 engine.)
Frame, fully-boxed, hydroformed front section
Hill Descent Control
Push Button Start
Recovery hooks, Red
Steering, Electric Power Steering (EPS) assist, rack-and-pinion
Trailer brake controller, integrated

Alternator, 220 amps
Automatic Stop/Start
Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
Cargo tie downs (12), fixed, rated at 500 lbs per corner
Exhaust, aluminized stainless-steel muffler and tailpipe
Four wheel drive
GVWR, 7200 lbs. (3266 kg) (Requires TK10*43 Crew Cab 4WD model with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
Pickup bed
Rear axle, 3.23 ratio
Skid Plates
Suspension, Off-Road with 2" factory installed lift and monotube shocks
Transfer case, two-speed, electronic Autotrac with push button control (4WD models only)

Safety

Airbags, Dual-stage frontal airbags for driver and front outboard passenger; Seat-mounted side-impact airbags for driver and front outboard passenger; Head-curtain airbags for front and rear outboard seating positions; Includes front outboard Passenger Sensing System for frontal outboard passenger airbag
Buckle to Drive prevents vehicle from being shifted out of Park until driver seat belt is fastened; times out after 20 seconds and encourages seat belt use (Included and only available with (PDI) GMC Pro Safety.)
Following Distance Indicator (Included and only available with (PDI) GMC Pro Safety.)
Front and Rear Park Assist, Ultrasonic
HD Surround Vision provides the driver with an overhead view of the scene around the vehicle on a centre stack display. Includes front camera washer.
Hitch View with image adjustment, Pan/Zoom/Tilt
OnStar Basics (OnStar Fleet Basics for Fleet) Drive more confidently with up to 8 years of core OnStar services including mobile app commands, connectivity for select apps that provide in-vehicle voice assistance and navigation with real-time traffic, and Automatic Crash Response. (Requires (UE1) OnStar. OnStar Basics includes access to remote commands through your vehicle's mobile app (compatible smartphone required); Automatic Crash Response (not all vehicles may transmit all crash data; OnStar links to emergency services); and wireless connectivity for select apps that provide in-vehicle voice assistance and navigation with real-time traffic (Voice & Maps apps are subject to change at any time and may be provided by third parties). Term begins from date of vehicle delivery. Paid subscription required after expiry. Services are dependent on compatible wireless networks provided by third-party wireless service providers, working vehicle electrical systems, GPS signal and other factors outside GM control. Changes in technology and wireless networks may limit or prevent the operation of certain services. For customers who also separately receive or purchase a Premium Plan or Vehicle Data Plan to use Wi-Fi Hotspot and In-Vehicle Apps, the data provided as part of that plan will also be used by any Voice & Maps apps which already had data connectivity under this Basics plan; if any applicable data caps are reached, Voice & Maps apps will continue to function for the duration of this Basics plan but additional vehicle data plan(s) must be purchased to use Wi-Fi Hotspot and In-Vehicle Apps. Services, connectivity, and capabilities have additional terms and limitations and are subject to change, and will vary by model, vehicle configuration, conditions, and geographical and technical restrictions. Non-refundable and no cash value. See onstar.ca for details.)
Rear Cross Traffic Braking
Rear Seat Belt Indicator
Safety Alert Seat (Included and only available with (PDI) GMC Pro Safety.)
StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
Trailer Camera Provisions and trailer viewing software

Automatic Emergency Braking (Included and only available with (PDI) GMC Pro Safety.)
Daytime Running Lamps, LED signature lighting
Forward Collision Alert (Included and only available with (PDI) GMC Pro Safety.)
Front Pedestrian Braking (Included and only available with (PDI) GMC Pro Safety.)
Hitch Guidance
Lane Keep Assist with Lane Departure Warning (Included and only available with (PDI) GMC Pro Safety.)
OnStar Services capable (See onstar.ca for details and limitations. Services vary by model. Service plan required.)
Rear Pedestrian Alert
Rear seat reminder
Seat Belt Adjustable Guide Loops, front row only
Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
Trailer Side Blind Zone Alert

Exterior

Bedliner, Spray-on Pickup bedliner with GMC logo (does not include spray-on liner on tailgate due to Black composite inner panel) (Deleted with (PCP) AT4 CarbonPro Edition.)
Bumper, rear body-colour with corner steps
Door handles, body-colour
Glass, deep-tinted
Headlamps, LED projectors with Fade-on/Fade-off animation, LED turn signals and Daytime Running Lamps
Lamps, cargo area, cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
Lighting, perimeter
Mirrors, outside heated power-adjustable, power-folding and driver-side auto-dimming puddle lamps, side perimeter lighting and memory
Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
Tire, spare 255/80R17SL all-season, blackwall (Included and only available with 20" or 22" wheels and tires excluding (QFV) LT265/60R20 MT blackwall Goodyear Wrangler Territory tires.)
Wheel, 17" x 8" (43.2 cm x 20.3 cm) full-size, steel spare
Wheels, 20" x 9" (50.8 cm x 22.9 cm) machined aluminum with Carbon Grey Metallic accents

Bumper, front, body-colour lower
CornerStep, rear bumper
Fog lamps, LED
Grille (Black chrome header and grille insert bars with gloss black accents.)
IntelliBeam, automatic high beam on/off (Included and only available with (PDI) GMC Pro Safety.)
LED Cargo Area Lighting located in cargo bed activated with switch on centre switch bank or key fob
Mirror caps, high gloss Black
Tailgate and bed rail protection caps, top
Tailgate, GMC MultiPro Tailgate with six functional load/access features
Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
Tires, 275/60R20SL all-terrain, blackwall (Includes (QAQ) spare tire.)
Wheelhouse liners, rear (Deleted with (PCP) AT4 CarbonPro Edition.)
Wipers, front rain-sensing

Package

Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance