Equipment
It has automated speed control that adjusts to maintain a safe following distance, enhancing highway driving convenience. An off-road package is equipped on this unit. This model features a hands-free Bluetooth phone system. The steering wheel audio controls on the GMC Sierra keep the volume and station within easy reach. This 2025 GMC Sierra 2500's Cross-Traffic Alert: Safeguarding you from unexpected traffic when reversing. Start this model from inside with remote start. with XM/Sirus Satellite Radio you are no longer restricted by poor quality local radio stations while driving this 3/4 ton pickup. Anywhere on the planet, you will have hundreds of digital stations to choose from. Apple CarPlay: Seamless smartphone integration for the GMC Sierra - stay connected and entertained on the go! See what's behind you with the back up camera on this GMC Sierra. This 3/4 ton pickup offers Automatic Climate Control for personalized comfort. It offers Android Auto for seamless smartphone integration.
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. X31 Off-Road Package: Off-Road Suspension; Hill Descent Control; Skid Plates. Preferred Package: LED Cargo Area Lighting; In-Vehicle Trailering System App; Power Sliding Rear Window with Defogger; Cloth Rear Seat with Storage Package; Adaptive Cruise Control; Universal Home Remote; Hitch Guidance with Hitch View. SLE Value Package: Spray-On Pickup Bedliner with GMC Logo. Sierra HD Pro Safety Plus Package: HD Surround Vision; Trailer Side Blind Zone Alert; In-Vehicle Trailering System App; Rear Cross Traffic Alert; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Bed View Camera with Two Trailer Camera Provisions. 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. 6 Rectangular Chromed Tubular Assist Steps. Spray-On Pickup Bedliner with GMC Logo. Power-Adjustable Black Outside Mirrors. Sterling Metallic. Hitch Package. 18 Machined Aluminum Wheels. Electric Rear-Window Defogger. Black Front and Rear Molded Splash Guards. LT275/70R18E AT BW Tires. High Idle Switch. Skid Plates. Rear Wheelhouse Liners. LED Cargo Area Lighting. **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 2025 GMCSierra SLE
- Sterling Metallic Exterior
- Jet Black Interior
- Crew Cab/6 seats
- 10-speed automatic
- 4WD
- V8, 6.6L Engine
- VIN 1GT4UMEY1SF304255
- Stock # C25369
Highlighted Features
- Lane departure
- Emergency communication system
- Wireless phone connectivity
- Exterior parking camera rear
- 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
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
- X31 Off-Road Package: Off-Road Suspension; Hill Descent Control; Skid Plates
- Preferred Package: LED Cargo Area Lighting; In-Vehicle Trailering System App; Power Sliding Rear Window with Defogger; Cloth Rear Seat with Storage Package; Adaptive Cruise Control; Universal Home Remote; Hitch Guidance with Hitch View
- SLE Value Package: Spray-On Pickup Bedliner with GMC Logo
- Sierra HD Pro Safety Plus Package: HD Surround Vision; Trailer Side Blind Zone Alert; In-Vehicle Trailering System App; Rear Cross Traffic Alert; Ultrasonic Front and Rear Park Assist; Trailer Cam Provisions and Trailer Viewing Software; Bed View Camera with Two Trailer Camera Provisions
- 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
- 6 Rectangular Chromed Tubular Assist Steps
- Spray-On Pickup Bedliner with GMC Logo
- Power-Adjustable Black Outside Mirrors
- Sterling Metallic
- Hitch Package
- 18 Machined Aluminum Wheels
- Electric Rear-Window Defogger
- Black Front and Rear Molded Splash Guards
- LT275/70R18E AT BW Tires
- High Idle Switch
- Skid Plates
- Rear Wheelhouse Liners
- LED Cargo Area Lighting
- 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
- Primary monitor touchscreen
- Lane Departure Warning
- Rear Cross-Traffic Alert collision warning
- Part-time 4WD
- Duramax 6.6L V-8 diesel direct injection
- intercooled turbo
- diesel
- engine with 470HP
- 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
- HD Surround Vision aerial view camera
- Smart device remote start
- 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
- Front mounted camera with washer
- Right side camera
- Pickup box camera
- Left side camera
- Trailer Side Blind Zone Alert blind spot warning
- 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
- Electronic stability control system with anti-roll
- Hill Descent Control (HDC)
Detailed Specifications
- 1-touch down
- 1-touch up
- Air conditioning
- Driver door bin
- Driver vanity mirror
- Emergency communication system
- 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 tires: 245/75SR17.0E
- Front wheel independent suspension
- Power steering
- Rear tires: 245/75SR17.0E
- Single rear wheels
- Wheel size: 17"
- 1st row LCD monitors: 2
- AM/FM radio: SiriusXM with 360L
- Primary LCD size: 13.4"
- Satellite radio trial duration with new vehicle purchase (months): 3
- 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
- Powertrain warranty: 60 months/60,000miles
- Roadside assistance coverage: 60 months/60,000miles
- Front center armrest: w/storage
- Front seats: bench
- Max seating capacity: 6
- Rear seats: split-bench
- Rear seats Folding position: fold-up cushion
- Seat Upholstery: cloth
- Split folding rear seat
- Compressor: Not Available
- Cylinder configuration: V-8
- Drive type: four-wheel
- Engine liters: 6.6L
- Engine location: front
- Fuel tank capacity: 36.0gal.
- Horsepower: 401hp @ 5,200RPM
- Hybrid traction battery type: none
- Manual-shift auto
- Mode select transmission
- Number of valves: 16
- Rear locking differential
- Recommended fuel: Regular Unleaded
- Standard fuel economy fuel type: gasoline
- Torque: 464 lb.-ft. @ 4,000RPM
- Transmission: 10 speed automatic
- Variable valve control
- Ground clearance (min): 256mm (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
- Compression ratio: 10.80 to 1
- Curb weight: 3,196kg (7,047lbs)
- Engine bore x stroke: 103.3mm x 98.0mm (4.07" x 3.86")
- Engine displacement: 6.6 L
- Engine horsepower: 401hp @ 5,200RPM
- Engine torque: 464 lb.-ft. @ 4,000RPM
- Exterior body width: 2,079mm (81.8")
- Exterior height: 2,023mm (79.7")
- Exterior length: 6,776mm (266.8")
- 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")
- GVWR: 4,831kg (10,650lbs)
- Payload: 1,617kg (3,565lbs)
- 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")
- Towing capacity: 7,257kg (16,000lbs)
- Turning radius: 8.7m (28.5')
- Wheelbase: 4,369mm (172.0")
- Appearance: digital/analog
- Auto high-beam headlights
- Compass
- Configurable
- Delay-off headlights
- Exterior parking camera rear: HD Rear Vision Camera yes
- 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
- Tracker system: Stolen Vehicle Assistance
- 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).