Equipment
This vehicle is equipped with the latest generation of XM/Sirius Radio. Protect the GMC Sierra from unwanted accidents with a cutting edge backup camera system. Apple CarPlay: Seamless smartphone integration for this unit - stay connected and entertained on the go! Bluetooth technology is built into this vehicle, keeping your hands on the steering wheel and your focus on the road. Start the GMC Sierra from inside with remote start. This 2026 GMC Sierra 2500's Lane Departure Warning helps keep you in your lane. The steering wheel audio controls on the GMC Sierra keep the volume and station within easy reach. This model offers Automatic Climate Control for personalized comfort. Keep your hands warm all winter with a heated steering wheel in this model . This 3/4 ton pickup comes equipped with Android Auto for seamless smartphone integration on the road. Set the temperature exactly where you are most comfortable in this unit. The fan speed and temperature will automatically adjust to maintain your preferred zone climate.
Packages
SLE Convenience Package: Manual Tilt-Wheel/telescoping Steering Column; 10-Way Power Driver Seat Adjuster with Lumbar; LED Fog Lamps; LED Smoked Amber Roof Marker Lamps; A/C with Dual-Zone Automatic Climate Control. Preferred Equipment Group 3SA: OnStar Services Capable; 120-Volt Bed Mounted Power Outlet; 4-Way Manual Driver Seat Adjuster; 2-Speed Electronic Shift Transfer Case; SiriusXM with 360L Trial Subscription; Deep-Tinted Glass; Chrome Surround Grille with Chrome Insert Bars; Sierra HD Pro Safety; Keyless Open and Start; Wireless Phone Projection; 120-Volt Instrument Panel Power Outlet; Push Button Start; 2 Charge/data USB Ports; Steering Wheel Audio Controls; 2 Charge-Only Rear USB Ports. Remote Start Package: Remote Vehicle Starter System; Electric Rear-Window Defogger; Unauthorized Entry Theft-Deterrent System. SLE Heated Package: Heated Steering Wheel; Heated Driver and Front Outboard Passenger Seats. Gooseneck/5th Wheel Prep Package. 4 Round Chromed Tubular Assist Steps. Spray-On Pickup Bedliner with GMC Logo. Sterling Metallic. Hitch Package. Electric Rear-Window Defogger. Rear Wheelhouse Liners. **Equipment listed is based on original vehicle build and subject to change. Please confirm the accuracy of the included equipment by calling the dealer prior to purchase.**
New 2026 GMCSierra SLE
- Sterling Metallic Exterior
- Jet Black Interior
- 10-speed automatic
- 4WD
- V8, 6.6L Engine
- VIN 1GT4UMEY7TF136042
- Stock # C26083
Highlighted Features
- Lane departure
- Emergency communication system
- Wireless phone connectivity
- Auto high-beam headlights
- Split folding rear seat
- Perimeter/approach lights
- Remote keyless entry
- Steering wheel mounted audio controls
- Fully automatic headlights
- Alloy wheels
- Heated door mirrors
- Trailer sway control
Included Packages & Accessories
- SLE Convenience Package: Manual Tilt-Wheel/telescoping Steering Column; 10-Way Power Driver Seat Adjuster with Lumbar; LED Fog Lamps; LED Smoked Amber Roof Marker Lamps; A/C with Dual-Zone Automatic Climate Control
- Preferred Equipment Group 3SA: OnStar Services Capable; 120-Volt Bed Mounted Power Outlet; 4-Way Manual Driver Seat Adjuster; 2-Speed Electronic Shift Transfer Case; SiriusXM with 360L Trial Subscription; Deep-Tinted Glass; Chrome Surround Grille with Chrome Insert Bars; Sierra HD Pro Safety; Keyless Open and Start; Wireless Phone Projection; 120-Volt Instrument Panel Power Outlet; Push Button Start; 2 Charge/data USB Ports; Steering Wheel Audio Controls; 2 Charge-Only Rear USB Ports
- Remote Start Package: Remote Vehicle Starter System; Electric Rear-Window Defogger; Unauthorized Entry Theft-Deterrent System
- SLE Heated Package: Heated Steering Wheel; Heated Driver and Front Outboard Passenger Seats
- Gooseneck/5th Wheel Prep Package
- 4 Round Chromed Tubular Assist Steps
- Spray-On Pickup Bedliner with GMC Logo
- Sterling Metallic
- Hitch Package
- Electric Rear-Window Defogger
- Rear Wheelhouse Liners
- 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
- 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
- Primary monitor touchscreen
- Lane Departure Warning
- 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
- Stolen Vehicle Assistance vehicle tracker with vehicle slowdown
- Bluetooth wireless audio streaming
- Hitch Guidance vehicle to trailer hitching assist
- Gauge cluster display size: 12.30
- Following Distance Indicator
- 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
- Electronic stability control system with anti-roll
- Hill start assist
- Automatic climate control
- Rear Seat Reminder rear seat check warning
- 1 exterior 120V AC power outlet
- LED daytime running lights
- LED front fog lights
- BedStep integrated side steps
- EZ Lift
- EZ Lower
- Trailer hitch light
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Driver door bin
- Driver vanity mirror
- Emergency communication system: OnStar
- Front beverage holders
- Illuminated entry
- Overhead console
- Passenger door bin
- Passenger vanity mirror
- Power windows
- Proximity key: doors and push button start
- Rear door bins
- Remote keyless entry
- Speed control
- Tilt steering wheel
- Alloy wheels
- Front anti-roll bar
- Front wheel independent suspension
- Power steering
- Single rear wheels
- 1st row LCD monitors: 2
- Primary LCD size: 13.4"
- Smart device integration: Apple CarPlay/Android Auto
- Speakers: 6
- 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
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: cloth
- 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")
- Bumpers: 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
- Front reading lights
- Fully automatic headlights
- Lane departure: Lane Departure Warning warning
- Low tire pressure warning
- Oil pressure gauge
- Outside temperature display
- Rear reading lights
- 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
- 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 - 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! - 3.0
Don't judge a truck by the appearance
By jmil on Wednesday, May 11, 2022
Great truck, loved it until the DEF tank heater malfunctioned and shut down the truck. Now sitting waiting for the replacement tank for over 10 weeks. Turns out every HD truck 2020 and 2021 has the same problem and all will need this replacement that is being produced at a snail's pace by GM. Per the dealership, last count, over 9000 trucks like mine are idle waiting for this part. $65000 waste of money and terrible service by GMC (not the local dealership).