Vehicle Details
Drivers searching for a powerful diesel pickup in South Louisiana will love this 2026 GMC Sierra 1500 SLT 4WD, now available in Breaux Bridge, LA. Built to handle workdays, weekends, and everything in between, this GMC Sierra combines premium comfort with rugged capability. Under the hood is a 6-cylinder 3.0L Diesel engine delivering strong towing confidence and smooth performance on the highway or jobsite. Inside, the SLT cabin is designed for convenience and connectivity. Enjoy Remote Start, Navigation, Automatic Climate Control, Apple CarPlay, and Lane Departure Warning for a more confident drive. The spacious interior offers refined materials, smart storage, and the technology you want for daily commuting or long road trips. With 4WD, this GMC Sierra is ready for changing road conditions, rough terrain, and Louisiana weather. If you want a versatile full-size truck with modern features, premium comfort, and proven diesel power, this 2026 GMC Sierra 1500 SLT deserves a closer look. Visit us in Breaux Bridge, LA to explore this capable pickup and see why the GMC Sierra remains a top choice among truck shoppers. Its bold exterior styling, LED lighting, alloy wheels, and advanced safety tech make it a smart choice for families, contractors, and drivers who need a dependable pickup every day around Breaux Bridge and beyond too.
Equipment
This 2026 GMC Sierra 1500 stays safely in its lane with Lane Keep Assist. The leather seats in this GMC Sierra are a must for buyers looking for comfort, durability, and style. Bluetooth technology is built into the vehicle, keeping your hands on the steering wheel and your focus on the road. This GMC Sierra keeps you comfortable with Auto Climate. See what's behind you with the back up camera on this 2026 GMC Sierra 1500. Never get into a cold vehicle again with the remote start feature on the GMC Sierra. You'll never again be lost in a crowded city or a country region with the navigation system on this 2026 GMC Sierra 1500. This 2026 GMC Sierra 1500 offers Apple CarPlay for seamless connectivity. This model's Lane Departure Warning helps keep you in your lane. Keep your hands warm all winter with a heated steering wheel in the GMC Sierra .
New 2026 GMCSierra 1500 SLT
- Diesel
- Exterior Color
- Onyx Black
- Interior Color
- Jet Black
- Fuel Economy
- 15/18 MPG City/Hwy
- Transmission
- 10-speed automatic
- Drivetrain
- 4x4
- Engine
- I-6 cyl
- VIN
- 3GTUUDE87TG427154
- Stock Number
- 26GB5071
Highlighted Features
- Navigation system
- Lane departure
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Wireless phone connectivity
- Front dual zone A/C
- Auto high-beam headlights
- Rain sensing wipers
- Auto-dimming rearview mirror
- Split folding rear seat
- Memory seat
Included Packages & Accessories
- GVWR 7;200 LBS. (3;266 KG)
- 50-STATE EMISSIONS
- ONYX BLACK
- REAR AXLE - 3.23 RATIO
- ENG: DURAMAX 3.0L TURBO-DIESE
- TRANSMISSION: 10-SPEED AUTO
- TEXAS EDITION SLT PREMIUM SLT CONVENIENCE PACKAGE
- X31 OFF-ROAD AND PROTECTION PACKAGE
- CUSTOMER DIALOGUE NETWORK
- WHEEL LOCKS; SET OF 4 (DEALER INSTALLED)
- REAR UNDERSEAT STORAGE (DEALER INSTALLED)
- TEXAS EDITION SLT PREMIUM PACKAGE & X31 OFF-ROAD
- DEALER IMR CONTRIBUTION
- LMA GROUP CONTRIBUTION
- Apple CarPlay/Android Auto smart device wireless mirroring
- Forward Collision Alert with Automatic Braking
- Front Pedestrian Braking
- Wi-Fi Hotspot capable mobile hotspot internet access
- HD Rear Vision Camera rear mounted camera
- Lane Keep Assist with Lane Departure Warning
- Automatic Emergency Braking predictive brake assist system
- Cruise control with steering wheel mounted controls
- Integrated navigation system with voice activation
- Keyfob remote start
- Heated steering wheel
- Heated driver and front passenger seats
- Leather front seat upholstery
- Primary monitor touchscreen
- Driver seat power reclining
- lumbar support
- cushion tilt
- fore/aft control and height adjustable control
- AutoTrac part-time 4WD
- Duramax 3L I-6 diesel direct injection
- DOHC
- variable valve control
- intercooled turbo
- diesel
- engine with 305HP
- Duramax 3L I-6 DOHC
- Google Built-In built-in virtual assistant
- Teen Driver restricted driving mode/alerts
- Keyless Open/Keyless Start with hands-free access and push button start
- Keyfob window control
- Smart device remote start
- Push-button
- GCW Alert weight capacity alert
- Stolen Vehicle Assistance vehicle tracker with vehicle slowdown
- Bluetooth wireless audio streaming
- Vehicle to trailer hitching assist
- Gauge cluster display size: 12.30
- Following Distance Indicator
- Dual-zone front climate control
- Voice-activated climate control
- Full gauge cluster screen
- IntelliBeam auto high-beam headlights
- Immobilizer
- OnStar vehicle integrated emergency SOS system
- Bluetooth handsfree wireless device connectivity
- Trailer brake controller
- Trailer sway control
- Vehicle and trailer reverse assist with visual graphic guidance only
- Premium GMC Infotainment System external memory control
- Internet radio capability
- Digital/analog instrumentation display
- Configurable instrumentation gauges
- StabiliTrak w/Proactive Roll Avoidance electronic stability control system with anti-roll
- Hill Start Assist (HSA)
- Automatic climate control
- Rear Seat Reminder rear seat check warning
- 1 exterior 120V AC power outlet
- LED daytime running lights
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Auto-dimming rearview mirror
- Automatic temperature control
- Driver door bin
- Driver vanity mirror
- Emergency communication system: OnStar
- Front beverage holders
- Front dual zone A/C
- Heated steering wheel
- Illuminated entry
- Memory seat
- Navigation system
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear beverage holders
- Rear door bins
- Remote engine start
- Remote keyless entry
- Speed control
- Telescoping steering wheel
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Speed-sensing steering
- 1st row LCD monitors: 2
- Primary LCD size: 13.4"
- Radio data system
- Smart device integration: Apple CarPlay/Android Auto
- Steering wheel mounted audio controls
- Turn-by-turn navigation directions: OnStar Turn-by-Turn Navigation
- Wireless phone connectivity: Bluetooth
- Basic warranty: 36 months/36,000miles
- Corrosion perforation warranty: 72 months/100,000miles
- Maintenance warranty: 12 months/ unlimited distance
- Heated front seats
- Leather upholstery
- Power 2-way driver lumbar support
- Power 2-way passenger lumbar support
- Power driver seat
- Power passenger seat
- Rear seat center armrest
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: leather
- Split folding rear seat
- Cylinder deactivation
- Drive type: four-wheel
- Electric motor 1 torque: none
- Electric motor horsepower: none
- Engine location: front
- Fuel economy city: 15mpg
- Fuel economy combined: 16mpg
- Fuel economy highway: 18mpg
- Fuel tank capacity: 24.0gal.
- Hybrid electric powertrain type: none
- Hybrid system combined power torque: none
- Hybrid system net power: none
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Transmission: 10 speed automatic
- Variable valve control
- Approach angle: 19 deg
- Departure angle: 24 deg
- Ground clearance (min): 206mm (8.1")
- Ramp breakover angle: 18 deg
- Auto-dimming door mirrors
- Bumpers: chrome
- Door mirrors: chrome
- Heated door mirrors
- Hitch Class: IV
- Left rear passenger door: conventional
- Power door mirrors
- Rear cargo: tailgate
- Rear step bumper
- Right rear passenger: conventional
- Trailer hitch
- Trailer sway control
- Exterior body width: 2,063mm (81.2")
- Exterior height: 1,918mm (75.5")
- Exterior length: 5,890mm (231.9")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,676mm (66.0")
- Greenhouse Gas Score (GG): 3
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,529mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,656mm (65.2")
- Wheelbase: 3,744mm (147.4")
- Appearance: digital/analog
- Auto high-beam headlights
- Compass
- Configurable
- Delay-off headlights
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Lane departure: Lane Keep Assist with Lane Departure Warning active
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Rain sensing wipers
- Rear reading lights
- Rear window defroster
- Tachometer
- Trip computer
- Variably intermittent wipers
- Voltmeter
- 4 wheel disc brakes
- ABS brakes
- Brake assist
- Dual front impact airbags
- Dual front side impact airbags
- Electronic stability
- Forward collision: Forward Collision Alert with Automatic Braking mitigation
- Front pedestrian detection: prevention
- Ignition disable
- Occupant sensing airbag
- Overhead airbag
- Panic alarm
- Perimeter/approach lights
- Security system
- Traction control
Dealer Notes
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