Welcome to 400 Chrysler Dodge Jeep Ram.

Command attention and conquer any terrain in this 2025 GMC Sierra 1500 AT4 Crew Cab 4WD, finished in striking Onyx Black with a Jet Black/Kalahari interior. Powered by the impressive 3.0L Duramax turbo-diesel engine paired to a smooth 10-speed automatic transmission, this AT4 delivers exceptional torque, efficiency, and off-road capability. Equipped with the AT4 Premium Package and Technology Package, youll enjoy a massive 13.4 GMC Premium Infotainment System with Google Built-In, wireless Apple CarPlay and Android Auto, Bose premium sound, a head-up display, and a multi-colour 15 diagonal head-up display. Built for adventure, it features a factory 2 suspension lift, Rancho monotube shocks, skid plates, all-terrain tires, LED lighting, spray-on bedliner, MultiPro tailgate with step, rear sliding power window, and off-road high clearance steps. Safety is top-tier with HD Surround Vision, Rear Cross Traffic Braking, Blind Zone Alert, Adaptive Cruise Control, and more. If youre looking for a premium truck that blends rugged off-road performance with luxury comfort and advanced tech, this Sierra AT4 is ready to lead the way.


From the first step into our dealership, you’ll experience a difference in our dedicated team & caring culture! Our staff are committed to making your experience enjoyable, with a friendly approach to car shopping that takes the stress & hassle out of the entire process.


Located on 9th Line in Innisfil, 400 Chrysler is proud to also serve Alliston, Midhurst, Grenfel, Minesing, Strongville and beyond. We look forward to meeting you!

Engine: Turbocharged Diesel I6 3.0L/183

Safety Equipment

• 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
• Front and Rear Park Assist, ultrasonic
• Hitch Guidance
• Rear Seat Reminder
• StabiliTrak, stability control system with Proactive Roll Avoidance and traction control, includes electronic trailer sway control and hill start assist
• Daytime Running Lamps, LED signature lighting
• Rear Seat Belt Indicator
• Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
• Rear Cross Traffic Braking
• Rear Pedestrian Alert
• Trailer Side Blind Zone Alert
• 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.
• Trailer Camera Provisions and trailer viewing software
• Seat Belt Adjustable Guide Loops, front row only
• Automatic Emergency Braking (Included and only available with (PDI) GMC Pro Safety.)
• Front Pedestrian Braking (Included and only available with (PDI) GMC Pro Safety.)
• Following Distance Indicator (Included and only available with (PDI) GMC Pro Safety.)
• Forward Collision Alert (Included and only available with (PDI) GMC Pro Safety.)
• Lane Keep Assist with Lane Departure Warning (Included and only available with (PDI) GMC Pro Safety.)
• Safety Alert Seat (Included and only available with (PDI) GMC Pro Safety.)
• Hitch View with image adjustment, Pan/Zoom/Tilt
• OnStar Services capable (See onstar.ca for details and limitations. Services vary by model. Service plan required.)
• 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.)
• 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.)

Interior Equipment

• Seat adjuster, driver 10-way power including lumbar
• Seat adjuster, passenger 10-way power including lumbar
• Seating, heated driver and front outboard passenger
• Seats, ventilated driver and front passenger
• Seats, heated second row outboard seats
• Centre Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
• Floor covering, colour-keyed carpeting
• Steering wheel, heated
• Compass, located in instrument cluster
• Window, power front, passenger express up/down
• Windows, power rear, express down
• Door locks, power
• Remote vehicle starter system
• Theft-deterrent system, unauthorized entry
• Defogger, rear-window electric
• Mirror, inside rearview auto-dimming
• Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
• Air conditioning, dual-zone automatic climate control
• Exterior Temperature Display, located in radio display
• Power outlet, interior power outlet, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
• Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) interior power outlet)
• Adaptive Cruise Control
• Steering wheel, wrapped
• Wireless Charging
• USB Ports, 2 (first row) located on console
• Air vents, rear
• Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
• Brake lining wear indicator
• Windows, power front, drivers express up/down
• Driver memory recalls driver "presets" for power driver seat and outside mirrors
• USB Ports, 2, Charge/Data ports located inside centre console
• Steering column lock, electrical
• Seats, front bucket with centre console
• Premium Floor Liners with removable carpet insert, front
• Premium Floor Liners with removable carpet insert, rear
• Keyless Open and Start includes remote keyless entry
• USB ports, (2) charge-only, rear
• GMC Premium information Display-13.4" diagonal Multicolour I touch screen
• 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)
• Steering column, power rake and telescoping
• 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
• Seat trim, Perforated leather front

Exterior Equipment

• Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
• CornerStep, rear bumper
• Glass, deep-tinted
• Tailgate and bed rail protection caps, top
• Door handles, body-colour
• Lamps, cargo area, cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
• Wheel, 17" x 8" (43.2 cm x 20.3 cm) full-size, steel spare
• Mirror caps, high gloss Black
• Lighting, perimeter
• Mirrors, outside heated power-adjustable, power-folding and driver-side auto-dimming puddle lamps, side perimeter lighting and memory
• Wipers, front rain-sensing
• Fog lamps, LED
• Tailgate, GMC MultiPro Tailgate with six functional load/access features
• Bumper, rear body-colour with corner steps
• Bumper, front, body-colour lower
• LED Cargo Area Lighting located in cargo bed activated with switch on centre switch bank or key fob
• Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
• Headlamps, LED projectors with Fade-on/Fade-off animation, LED turn signals and Daytime Running Lamps
• IntelliBeam, automatic high beam on/off (Included and only available with (PDI) GMC Pro Safety.)
• Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
• Wheelhouse liners, rear (Deleted with (PCP) AT4 CarbonPro Edition.)
• Grille (Black chrome header and grille insert bars with gloss black accents.)
• Wheels, 20" x 9" (50.8 cm x 22.9 cm) machined aluminum with Carbon Grey Metallic accents
• Tires, 275/60R20SL all-terrain, blackwall (Includes (QAQ) spare tire.)
• 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.)
• 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.)

Entertainment Equipment

• Bose Sound System, premium 7-speaker system with Richbass woofer
• Bluetooth for phone connectivity to vehicle infotainment system
• Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.ca or dealer for details.)
• SiriusXM
• 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 wheel audio controls
• 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
• Wireless, Apple CarPlay / Wireless Android Auto

Mechanical Equipment

• Four wheel drive
• Trailer brake controller, integrated
• Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
• Frame, fully-boxed, hydroformed front section
• Exhaust, aluminized stainless-steel muffler and tailpipe
• Push Button Start
• Air filter, heavy-duty
• Auto-locking rear differential
• Automatic Stop/Start
• Hill Descent Control
• Skid Plates
• Steering, Electric Power Steering (EPS) assist, rack-and-pinion
• Capless Fuel Fill
• Rear axle, 3.23 ratio
• Alternator, 220 amps
• Pickup bed
• Transfer case, two-speed, electronic Autotrac with push button control (4WD models only)
• Suspension, Off-Road with 2" factory installed lift and monotube shocks
• Recovery hooks, Red
• Cargo tie downs (12), fixed, rated at 500 lbs per corner
• Electronic Precision Shift and steering column paddle shifters
• 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.)
• 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.)
• 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
• GVWR, 7200 lbs. (3266 kg) (Requires TK10*43 Crew Cab 4WD model with (LZ0) Duramax 3.0L Turbo-Diesel I6 engine.)
• Exhaust, dual system (Includes chrome exhaust tips. Not available with (L87) 6.2L EcoTec3 V8 engine.)

Other Equipment

• Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance
• GMC Pro Safety includes (UEU) Forward Collision Alert, (UE4) Following Distance Indicator, (UKJ) Front Pedestrian Braking, (TQ5) IntelliBeam, (UHX) Lane Keep Assist with Lane Departure Warning, and (UHY) Automatic Emergency Braking (Includes (T8Z) Buckle to Drive and (HS1) Safety Alert Seat.)
• 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),Tow Hitch,4-Wheel Disc Brakes,Automatic Highbeams,Lane Keeping Assist,Tires - Rear All-Terrain,Four Wheel Drive,Bluetooth Connection,Keyless Start,Satellite Radio,Requires Subscription,Tow Hooks,Locking/Limited Slip Differential,Front Collision Mitigation,Turbocharged,ABS,Lane Departure Warning,Conventional Spare Tire,Aluminum Wheels,Tires - Front All-Terrain,Power Steering,Front Collision Warning,Power Windows,Auxiliary Audio Input,MP3 Capability,Telematics,Requires Subscription,Mirror Memory,Smart Device Integration,Security System,Keyless Start,Front Collision Warning,Automatic Highbeams,Floor Mats,Driver Air Bag,Power Folding Mirrors,Mirror Memory,Variable Speed Intermittent Wipers,MP3 Capability,Rear Head Air Bag,Front Collision Mitigation,Navigation System,Auto-Dimming Rearview Mirror,Keyless Entry,Power Passenger Seat,Passenger Adjustable Lumbar,Privacy Glass,Heated Front Seat(s),Leather Seats,Heated Rear Seat(s),Front Collision Mitigation,AM/FM Stereo,Front Head Air Bag,Smart Device Integration,Back-Up Camera,Rear Bench Seat,Passenger Air Bag,Rear Parking Aid,Requires Subscription,Auxiliary Audio Input,Driver Adjustable Lumbar,Lane Keeping Assist,Seat Memory,Passenger Air Bag Sensor,Rain Sensing Wipers,MP3 Capability,WiFi Hotspot,Heated Steering Wheel,Bucket Seats,Bed Liner,Fog Lamps,Multi-Zone A/C,Cross-Traffic Alert,Adaptive Cruise Control,Power Mirror(s),Front Collision Warning,Cruise Control,Aerial View Display System,Satellite Radio,Daytime Running Lights,Front Side Air Bag,Climate Control,Rear Defrost,Daytime Running Lights,Remote Engine Start,Auxiliary Audio Input,Power Door Locks,Adjustable Steering Wheel,LED Headlights,Tire Pressure Monitor,Bluetooth Connection,Steering Wheel Audio Controls,Blind Spot Monitor,Power Windows,Heated Front Seat(s),Heated Mirrors,Requires Subscription,Bluetooth Connection,Driver Monitoring,A/C,Integrated Tailgate Step,Power Door Locks,Floor Mats,Lane Departure Warning,Power Driver Seat,Pass-Through Rear Seat,Front Collision Warning,Power Windows,Stability Control,Intermittent Wipers,Cooled Front Seat(s),Traction Control,Premium Sound System,Telematics