2025 GMC Sierra 3500HD SLE 4WD Crew Cab Standard Box SLE

115 Wt Hill Blvd South, Lethbridge, AB, T1J 4T6 · Posted 31 Oct, 2026

Description

The 2025 GMC Sierra 3500HD SLE Crew Cab 4WD combines heavy-duty Duramax diesel power, rugged engineering, and practical comfort for drivers who demand serious capability. Finished in crisp Summit White with bold chrome accents, off-road enhancements, and a spacious Crew Cab interior, this hardworking truck is built to tackle demanding jobs, substantial towing tasks, and challenging terrain with confidence. 
Performance & Capability 
Engine: 6.6L Duramax Turbo-Diesel V8 delivering impressive torque and dependable heavy-duty performance 

Transmission: Allison 10-speed automatic transmission for smooth, controlled power delivery 

Drivetrain: 4-Wheel Drive with Autotrac two-speed transfer case for confident traction in changing conditions 

Rear Axle: 3.42 ratio engineered for balanced performance and heavy-duty capability 

Rear Differential: Automatic locking rear differential for enhanced traction on challenging surfaces 

Exhaust Brake: Helps manage speed and reduce brake demand when descending with a heavy load 

Cooling Systems: Engine oil cooler and transmission oil cooler designed for demanding work 

Heavy-Duty Components: Heavy-duty front springs, air filtration monitoring, and a 220-amp alternator 

Off-Road Capability: X31 Off-Road Package with Rancho twin-tube shocks, off-road suspension, skid plates, and Hill Descent Control 

Trailering Equipment: Integrated trailer brake controller, trailering app, and trailer camera provisions 

Gooseneck/5th-Wheel Preparation: Factory-installed preparation for compatible heavy-duty trailer setups 

Winter & Weather Comfort 
Heated Front Seats: Warmth for the driver and front passenger on cold mornings 

Heated Steering Wheel: Added comfort during chilly Canadian winters 

Remote Start: Conveniently start the truck before heading outside 

Engine Block Heater: Helps prepare the diesel engine for cold-weather starts 

Electric Heating System: Additional cabin heating support in colder conditions 

Dual-Zone Automatic Climate Control: Personalized temperature settings for driver and passenger 

Heated, Power-Adjustable Trailering Mirrors: Improved convenience and visibility in changing weather 

Rear Window Defogger: Helps maintain rear visibility when temperatures drop 

Winter Grille Cover: Helps support cold-weather operation 

Interior Comfort & Convenience 
Crew Cab Configuration: Four full-size doors and generous passenger space for work crews or family 

Seating: 40/20/40 split front bench with a 10-way power-adjustable drivers seat 

Rear Seating: Folding 60/40 rear bench for added passenger and storage flexibility 

Interior Colour: Jet Black interior with a practical, professional appearance 

Keyless Open & Push-Button Start: Convenient entry and ignition 

Power Windows & Door Locks: Everyday convenience at your fingertips 

Rubberized-Vinyl Floor Mats: Durable protection against mud, dirt, and moisture 

Power-Adjustable Trailering Mirrors: Power folding and heated upper glass with integrated turn signals 

EZ Lift Tailgate: Power locking and release with lift assistance for easier loading 

Technology & Connectivity 
13.4-Inch GMC Premium Infotainment Touchscreen: Large colour display with Google built-in compatibility 

12-Inch Digital Driver Display: Reconfigurable multicolour information display 

Wireless Apple CarPlay & Android Auto: Compatible smartphone integration for navigation, calls, and entertainment 

USB Connectivity: Front USB ports and rear charging ports 

120V Power Outlets: Convenient power access in the cabin and cargo bed 

Six-Speaker Audio System: Clear sound for music, podcasts, and calls 

In-Vehicle Trailering App: Helpful trailer-related information and monitoring features 

Bed View Camera: Assists with monitoring the cargo bed and fifth-wheel or gooseneck connections 

Safety & Driver Assistance 
Sierra HD Pro Safety: Driver-assistance technologies designed to support awareness 

Forward Collision Alert: Warns of potential front-end collision situations 

Automatic Emergency Braking: Can assist with braking in certain collision scenarios 

Front Pedestrian Braking: Helps detect pedestrians ahead 

Lane Departure Warning: Alerts the driver to certain unintended lane departures 

Following Distance Indicator: Helps monitor the gap to the vehicle ahead 

HD Surround Vision: Multiple camera views to assist with parking and manoeuvring 

Front & Rear Park Assist: Helps navigate tight spaces 

Trailer Side Blind Zone Alert: Adds awareness when towing 

Rear Cross Traffic Alert: Warns of approaching traffic when reversing 

IntelliBeam Headlamps: Automatically adjusts high beams when appropriate 

Exterior Styling & Utility 
Exterior Colour: Summit White for a clean, professional appearance 

18-Inch Machined Aluminum Wheels: Finished with dark grey metallic accents 

All-Terrain Tires: LT275/70R18E tires for worksite versatility and confident road manners 

LED Lighting: LED headlamps, front fog lamps, roof marker lamps, and cargo bed lighting 

Chrome Bumpers: Front and rear chrome finishes complement the SLE styling 

Spray-On Bedliner: Helps protect the cargo bed against scratches and everyday wear 

Bed-Mounted 120V Outlet: Convenient power for compatible tools and equipment 

Gooseneck/5th-Wheel Prep Package: Adds versatility for compatible trailer installations 

Black Recovery Hooks: Rugged styling with practical utility 

Rear CornerStep Bumper: Convenient access to the pickup bed 

Whether youre hauling equipment, towing a fifth-wheel trailer, managing demanding workdays, or exploring rugged backroads, the 2025 GMC Sierra 3500HD SLE delivers the diesel strength and heavy-duty engineering to get the job done. With its Duramax V8, Allison transmission, advanced trailering technology, and practical Crew Cab comfort, this Sierra combines professional-grade capability with everyday usability. 
 

AMVIC Licensed Dealer

*Every reasonable effort is made to ensure the accuracy of the information shown. The Standard Equipment listed is provided at the time of the manufacture and may not match the exact vehicle displayed. Please confirm with a sales representative the accuracy of this information.

Safety Equipment
StabiliTrak, stability control system with Proactive Roll Avoidance and traction control includes electronic trailer sway control and hill start assist
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
Teen Driver a configurable feature that lets you activate customizable vehicle settings associated with a key fob, to help encourage safe driving behaviour. It can limit certain available vehicle features, and it prevents certain safety systems from being turned off. An in-vehicle report card gives you information on driving habits and helps you to continue to coach your new driver
Tire Pressure Monitoring System auto learn, includes Tire Fill Alert (does not apply to spare tire)
Hitch Guidance dynamic single line to aid in truck trailer alignment for hitching (Deleted with (ZW9) pickup bed delete.)
Front Pedestrian Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
Automatic Emergency Braking (Included and only available with (PDI) Sierra HD Pro Safety.)
LED Signature DRL's
Forward Collision Alert (Included and only available with (PDI) Sierra HD Pro Safety.)
Following Distance Indicator (Included and only available with (PDI) Sierra HD Pro Safety.)
Lane Departure Warning (Included and only available with (PDI) Sierra HD Pro Safety.)
Rear Seat Belt Indicator (Requires Crew Cab or Double Cab model.)
Rear Seat Reminder (Requires Crew Cab or Double Cab model.)
OnStar Services capable (See onstar.ca for details and limitations. Services vary by model. Service plan required.)
Seat Belt Adjustable Guide Loops, front row only (Included and only available on Crew Cab and Double Cab models. Not available with (ZW9) pickup bed delete.)
Daytime Running Lamps LED signature lighting
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) Sierra HD 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.)
HD Rear Vision Camera (Not available with (ZW9) pickup bed delete. Removed with (UV2) HD Surround Vision.)
Interior Equipment
Floor covering, colour-keyed carpeting
Steering wheel audio controls
Exterior Temperature Display located in radio display
Compass, located in instrument cluster
Window, power front, drivers express up/down
Door locks, power
Power outlet, instrument panel, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
Seat trim, Cloth
Cruise control, steering wheel-mounted
Air conditioning, single-zone
Seat adjuster, driver 4-way manual
Seat adjuster, passenger 4-way manual
Seat, rear 60/40 folding bench (folds up), 3-passenger (includes child seat top tether anchor) (Not available with Regular Cab model.)
Steering column, Tilt-Wheel, manual with wheel locking security feature
Windows, power rear, express down (Not available on Regular Cab models.)
Air vents, rear (Not available with Regular Cab model.)
Mirror, inside rearview, manual tilt
Seats, front 40/20/40 split-bench with covered armrest storage and under-seat storage (lockable)
Window, power front, passenger express down
USB Ports, 2, Charge/Data ports located on instrument panel
Steering wheel, wrapped
Driver Information Centre, enhanced, 12.3" diagonal reconfigurable multicolour digital display
Assist handles, front A-pillar mounted for driver and passenger, rear B-pillar mounted
GMC Premium information Display- 13.4" diagonal Multicolour touch screen
Keyless Open and Start includes remote keyless entry
USB ports, (2) charge-only, rear
Floor mats, rubberized-vinyl front (Included and only available with (B30) colour-keyed carpeting. Deleted when LPO floor liners are ordered.)
Floor mats, rubberized-vinyl rear (Requires Crew Cab or Double Cab model. Included and only available with (B30) colour-keyed carpeting. Deleted when LPO floor liners are ordered.)
Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) instrument panel mounted power outlet) (Deleted with (ZW9) pickup bed delete.)
Exterior Equipment
Single Rear Wheels
Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
CornerStep, rear bumper
Mouldings, beltline, stainless steel
Glass, deep-tinted
Door handles, body-colour
Bumper, front chrome lower
Bumper, rear chrome with bumper CornerSteps
Lamps, cargo area, cab mounted integrated with centre high mount stop lamp, with switch in bank on left side of steering wheel
Tailgate, standard (Deleted with (ZW9) pickup bed delete.)
Tailgate and bed rail protection caps, top (Deleted with (ZW9) pickup bed delete.)
IntelliBeam, automatic high beam on/off (Included and only available with (PDI) Sierra HD Pro Safety.)
Taillamps, LED Signature Tail, Incandescent Brake, Turn & Reverse Lamps
Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light (Deleted with (ZW9) pickup bed delete.)
Bed Step, Black integrated on forward portion of bed on driver and passenger side (Not available with (ZW9) pickup bed delete.)
Headlamps, Animated LED projectors, LED turn signals and Daytime Running Lamps
Wheels, 18" (45.7 cm) machined aluminum wheel with Dark Grey metallic accents (Requires single rear wheels. Included with (RFX) X31 Off-Road and Protection Package.)
Tires, LT275/70R18E all-terrain, blackwall (Requires single rear wheels. Included with (RFX) X31 Off-Road and Protection Package.)
Tire, spare LT275/70R18 all-terrain, blackwall (Included and only available with (QF6) LT275/70R18E all-terrain, blackwall tires or (QF9) LT275/65R20 all-terrain, blackwall tires with (E63) pickup bed models. Available to order when (ZW9) pickup bed delete and (QF6) LT275/70R18E all-terrain, blackwall tires are ordered.)
Grille, Chrome surround with chrome insert bars
Mirrors, outside power-adjustable vertical trailering with heated upper glass lower convex mirrors, integrated turn signals, manual folding/extending (extends 3.31" [84.25mm]), Black
Cargo tie downs (12), fixed, rated at 500 lbs per corner
Entertainment Equipment
Bluetooth for phone connectivity to vehicle infotainment system
Audio system feature, 6-speaker system (Requires Crew Cab or Double Cab model.)
Wireless Phone Projection for Apple CarPlay and Android Auto
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.)
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.
Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
SiriusXM Trial Subscription
Mechanical Equipment
Engine, 6.6L V8 with Direct Injection and Variable Valve Timing, gasoline (401 hp [299 kW] @ 5200 rpm, 464 lb-ft of torque [629 N-m] @ 4000 rpm)
Air filtration monitoring
Four wheel drive
Cooling, external engine oil cooler
Cooling, auxiliary external transmission oil cooler
Battery, heavy-duty 720 cold-cranking amps/80 Amp-hr maintenance-free with rundown protection and retained accessory power (Included and only available with (L8T) 6.6L V8 gas engine.)
Alternator, 170 amps (Requires (L8T) 6.6L V8 gas engine.)
Trailer brake controller, integrated
Frame, fully-boxed, hydroformed front section and a fully-boxed stamped rear section
Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
Brake lining wear indicator
Steering, Recirculating Ball with smart flow power steering system
Rear axle, 3.73 ratio (Requires (L8T) 6.6L V8 gas engine.)
Recovery hooks, front, frame-mounted, Black
Suspension Package (Not available with (X31) Off-Road Package.)
Capless Fuel Fill (Requires (L8T) 6.6L gas V8 engine. Not included with (ZW9) pickup bed delete.)
Push Button Start
Air filter, heavy-duty
Transfer case, two-speed electronic shift with push button controls (Requires 4WD models.)
Auto-locking rear differential
Pickup bed includes bed assist step (Deleted when (ZW9) pickup bed delete is ordered.)
Transmission, Allison 10-Speed automatic
GVWR, 11,550 lbs. (5239 kg) with single rear wheels (Included and only available with TK30743 model and (L8T) 6.6L V8 gas engine. Requires single rear wheels.)
Other Equipment
Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance (Deleted when (ZW9) pickup bed delete is ordered.)
Sierra HD Pro Safety includes (UEU) Forward Collision Alert, (UE4) Following Distance Indicator, (UKJ) Front Pedestrian Braking, (TQ5) IntelliBeam, (UFL) Lane Departure Warning, (T8Z) Buckle to Drive and (UHY) Automatic Emergency Braking
Advertisement
Advertisement

Similar cars in Lethbridge