Vehicle Details
Discover the 2026 GMC Sierra 2500 SLT 4WD with the powerful 6.6L V8 Duramax dieselâ"now available in Breaux Bridge, LA. This heavy-duty GMC Sierra pairs exceptional towing capability and Gallon-crunching diesel efficiency with premium comfort and advanced safety features, making it an ideal choice for work, recreation, and daily driving. You'll find the upscale SLT trim delivers refined interior appointments, intuitive technology, and rugged capability in one package. Standard connectivity includes Apple CarPlay and Android Auto for seamless smartphone integration, plus Hands-Free Bluetooth for convenient calling and streaming. Driver-assist features such as Lane Departure Warning enhance highway confidence, while a Heated Steering Wheel keeps you comfortable in cooler weather. The 4WD system and stout 6.6L V8 diesel provide towing muscle, reliable performance, and confident traction across varied terrain. This GMC Sierra 2500 SLT is competitively priced and claims the best price in the marketâ"an outstanding value for buyers seeking diesel power and premium features. Located in Breaux Bridge, LA, the vehicle is ready for local test drives and immediate delivery. Contact us today to schedule a viewing, explore financing options, or request a vehicle history report. Experience the blend of capability, comfort, and cutting-edge tech that defines the 2026 GMC Sierra 2500 SLT 4WD.
Equipment
The GMC Sierra's Lane Departure Warning keeps you safe by alerting you when you drift from your lane. This 2026 GMC Sierra 2500 has automated speed control that adjusts to maintain a safe following distance, enhancing highway driving convenience. The leather seats in this vehicle are a must for buyers looking for comfort, durability, and style. Protect it from unwanted accidents with a cutting edge backup camera system. The vehicle offers Android Auto for seamless smartphone integration. This unit features a hands-free Bluetooth phone system. Apple CarPlay: Seamless smartphone integration for this model - stay connected and entertained on the go! Keep your hands warm all winter with a heated steering wheel in the GMC Sierra . This vehicle keeps you comfortable with Auto Climate. An off-road package is equipped on this vehicle. Never get into a cold vehicle again with the remote start feature on this vehicle. Greater towing safety becomes standard with the installed trailer brake.
New 2026 GMCSierra 2500 HD SLT
- Diesel
- Exterior Color
- Volcanic Red Tintcoat
- Interior Color
- Dark Walnut/Slate
- Transmission
- 10-speed automatic
- Drivetrain
- 4x4
- Engine
- V-8 cyl
- VIN
- 1GT4UNEY7TF214146
- Stock Number
- 26GB4717
Highlighted Features
- Lane departure
- Leather upholstery
- Automatic temperature control
- Emergency communication system
- Wireless phone connectivity
- Exterior parking camera rear
- 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
- 50-STATE EMISSIONS
- VOLCANIC RED TINTCOAT
- REAR AXLE 3.42 RATIO
- GVWR; 11;350 LBS. (5148 KG)
- ENG: DURAMAX 6.6L TURBO-DIES
- TRANS: 10-SPEED AUTO
- SLT PREMIUM PACKAGE SLT CONVENIENCE PACKAGE
- ALL TERRAIN TIRES
- BRIGHT FACE DARK PAINTED WHEELS 20
- ALL-WEATHER FLOOR LINERS (DEALER INSTALLED)
- CUSTOMER DIALOGUE NETWORK
- WHEEL LOCKS; SET OF 4 (DEALER INSTALLED)
- REAR UNDERSEAT STORAGE (DEALE INSTALLED)
- X31 OFF-ROAD PACKAGE:
- SLT PREMIUM PACKAGE DISCOUNT DISCOUNT
- 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 w/Hitch View rear mounted camera
- Adaptive cruise control
- Automatic Emergency Braking predictive brake assist system
- Cruise control with steering wheel mounted controls
- Keyfob remote start
- Heated steering wheel
- Heated driver and front passenger seats
- Leather front seat upholstery
- Primary monitor touchscreen
- Lane Departure Warning
- Driver seat power reclining
- lumbar support
- cushion tilt
- fore/aft control and height adjustable control
- AutoTrac part and full-time 4WD
- Duramax 6.6L V-8 diesel direct injection
- intercooled turbo
- diesel
- engine with 470HP
- Duramax 6.6L V-8
- 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
- Hitch Guidance with Hitch View vehicle to trailer hitching assist
- Gauge cluster display size: 12.30
- Following Distance Indicator
- Trailer light test
- Trailer light malfunction warning
- Trailer theft alarm
- Dual-zone front climate control
- Full gauge cluster screen
- Auto high-beam headlights
- Immobilizer
- OnStar vehicle integrated emergency SOS system
- Bluetooth handsfree wireless device connectivity
- Trailer brake controller
- Trailer sway control
- Trailering Assist Guidelines 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
- Power extendable trailer mirrors
- Electronic stability control system with anti-roll
- Hill start assist
- Automatic climate control
Detailed Specifications
- 1-touch down
- 1-touch up
- Adaptive Cruise Control
- 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
- 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
- Single rear wheels
- Speed-sensing steering
- Tires: all-terrain
- 1st row LCD monitors: 2
- Primary LCD size: 13.4"
- 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 configuration: V-8
- Drive type: four-wheel
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Rear locking differential
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 257mm (10.1")
- 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
- Turn signal indicator mirrors
- Engine displacement: 6.6 L
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,027mm (79.8")
- Exterior length: 6,369mm (250.8")
- Front headroom: 1,093mm (43.0")
- Front hiproom: 1,554mm (61.2")
- Front legroom: 1,131mm (44.5")
- Front shoulder room: 1,677mm (66.0")
- Rear headroom: 1,019mm (40.1")
- Rear hiproom: 1,530mm (60.2")
- Rear legroom: 1,102mm (43.4")
- Rear shoulder room: 1,659mm (65.3")
- Turning radius: 8.0m (26.3')
- Wheelbase: 4,039mm (159.0")
- Appearance: digital/analog
- Auto high-beam headlights
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera rear: HD Rear Vision Camera w/Hitch View yes
- Front fog lights
- Front reading lights
- Fully automatic headlights
- Lane departure: Lane Departure Warning warning
- 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
KBB.com Consumer Reviews
- 2.0
Transmission trash
By Jason on Monday, April 07, 2025
Bought a 2023 GMC Duramax diesel Sierra SLT had it for two years hit 50,000 miles. The throttlebody broke went in for service. Got it back three weeks at 62,000 miles now my transmission is slipping. I travel back-and-forth from South Carolina to North Carolina for work daughter’s truck would be my forever truck. What a joke Hundred thousand dollar truck junk - 3.0
Infotainment system unreliable!
By Brian C on Friday, June 27, 2025
The servicing dealer has been great, the GM engineers not so much! The truck will without warning have no sound for the radio and the blinkers. GM told the dealership to reprogram then when that didn't work they said replace the amplifier and when that didn't work, they said replace a module, and when that didn't work they said to replace the amplifier again, and when that didn't work they said we know it's a known problem but we don't know how to fix it. All of this with less than 9k miles. The dealer has done everything that GM has asked them to do, but none of it works. It's very frustrating to pay this much for a truck and you can't get the radio to stay working. It also got away from the factory with paint damage and a dent in the hood,( the dent is from the inside out on a double wall). I thought I was upgrading when I went from a F250 Lariat to a Denali, but I may have traded one headache for another. - 5.0
Fantastic truck
By Jjj on Sunday, November 07, 2021
This one of the most solid vehicles that I have ever driven! The 401 hp engine is more than enough power and the transmission is smooth! Highly recommend this truck!