Onyx Black 2026 GMC Sierra 1500 SLT RWD 10-Speed Automatic 3.0L I6 10-Speed Automatic, Dark Walnut/Slate Leather.
23/29 City/Highway MPG Price includes: $1500 - Buick & GMC Consumer Cash Program. Exp. 01/02/2026 $250 - December Buick GMC Holiday Event Bonus Cash. Exp. 01/02/2026 $2500 - GM Trade In Allowance Program. Exp. 01/02/2026 $500 - GM Bonus Cash. Exp. 01/02/2026
New 2026 GMCSierra 1500 SLT Truck Crew Cab
*All prices plus government fees and taxes, any finance charges, any dealer document processing charge, any electronic filing charges, and any emission testing charge. Vehicles subject to prior sale. This is a group website that is created from multiple dealership feeds and inventory. Not responsible for feed/pricing errors. See individual dealerships for more information.
- Exterior Color
- Onyx Black
- Interior Color
- Dark Walnut/Slate
- Fuel Economy
- 16/20 MPG City/Hwy
- Transmission
- 10 speed automatic
- Drivetrain
- 4x2
- Engine
- I-6 cyl
- VIN
- 1GTUHDE89TZ112635
- Stock Number
- 26G027
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
- Engine Block Heater
- 20" Polished Aluminum Wheels
- Perforated Leather-Appointed Front Outboard Seat Trim
- Theft Deterrent System (unauthorized Entry)
- Front License Plate Kit
- High Capacity Suspension Package
- Standard Suspension Package
- 4-Wheel Disc Brakes
- Apple CarPlay/Android Auto
- Emergency communication system: OnStar
- AM/FM radio: SiriusXM with 360L
- Auto High-beam Headlights
- Front Center Armrest w/Storage
- Compass
- Auto-dimming Rear-View mirror
- Variably intermittent wipers
- Trip computer
- Traction control
- Tilt steering wheel
- Telescoping steering wheel
- Steering wheel mounted audio controls
- Split folding rear seat
- Speed-sensing steering
- Speed control
- Security system
- Remote keyless entry
- Rear window defroster
- Rear step bumper
- Rear seat center armrest
- Rear reading lights
- Rain sensing wipers
- Radio data system
- Power windows
- Power steering
- Power passenger seat
- Power driver seat
- Power door mirrors
- Passenger vanity mirror
- Passenger door bin
- Panic alarm
- Overhead console
- Overhead airbag
- Outside temperature display
- Occupant sensing airbag
- Memory seat
- Low tire pressure warning
- Illuminated entry
- Heated steering wheel
- Heated front seats
- Heated door mirrors
- Fully automatic headlights
- Front wheel independent suspension
- Front reading lights
- Front fog lights
- Front dual zone A/C
- Front anti-roll bar
- Dual front side impact airbags
- Dual front impact airbags
- Driver vanity mirror
- Driver door bin
- Delay-off headlights
- Bumpers: chrome
- Brake assist
- Automatic temperature control
- Auto-dimming door mirrors
- Alloy wheels
- ABS brakes
- Voltmeter
- Tachometer
- Navigation System
- Electronic Stability Control
- Air Conditioning
- 6 Speakers
- Preferred Equipment Group 4SA
- 10-Way Power Driver Seat Adjuster with Lumbar
- Driver Memory
- Front Bucket Seats
- 10-Way Power Passenger Seat Adjuster with Lumbar
- Power Front Passenger Windows with Express Up/Down
- Power Rear Windows with Express Down
- Deep-Tinted Glass
- Power Door Locks
- Keyless Open and Start
- Power Front Windows with Driver Express Up/Down
- Front 40/20/40 Split-Bench Seat
- Rear Wheelhouse Liners
- Color-Keyed Carpeting Floor Covering
- Push Button Start
- Remote Vehicle Starter System
- Chrome Wheel to Wheel Assist Steps
- Electric Rear-Window Defogger
- Front Rain-Sensing Wipers
- Hitch Guidance
- Floor-Mounted Center Console
- Electronic Precision Shift
- Auto-Locking Rear Differential
- Chrome Header and Chrome Grille Insert Bars
- Radio: Premium GMC Infotainment Audio System
- Integrated Trailer Brake Controller
- Wireless Charging
- Heated Driver and Front Outboard Passenger Seating
- 120-Volt Bed Mounted Power Outlet
- 120-Volt Interior Power Outlet
- Auxiliary External Transmission Oil Cooler
- Ventilated Driver and Front Passenger Seats
- 220 Amp Alternator
- 170 Amp Alternator
- Manual Tilt-Wheel and Telescoping Steering Column
- Power Rake and Telescoping Steering Column
- Max Trailering Package
- SLT Convenience Package
- SLT Premium Package
- GMC Pro Safety
- Wireless Apple CarPlay/Wireless Android Auto
- Hitch View
- Enhanced Cooling Radiator
- Increased RGAWR
- Heavier Duty Rear Springs
- Buckle to Drive
- IntelliBeam Automatic High Beam on/Off
- Perimeter Lighting
- SiriusXM with 360L Trial Subscription
- 2 Charge/Data USB Ports Inside Center Console
- 2 Type-C Charge-Only Rear USB Ports
- 2 Charge/Data USB Ports
- OnStar Services Capable
- Following Distance Indicator
- in-Vehicle Trailering System App
- Forward Collision Alert
- LED Cargo Area Lighting
- Wheels: 18" x 8.5" 6-Spoke Machined Aluminum
- Lane Keep Assist with Lane Departure Warning
- Automatic Emergency Braking
- Steering Wheel Audio Controls
- Front Pedestrian Braking
- Premium Bose 7-Speaker Sound System
- 6-Speaker Audio System Feature
- HD Rear Vision Camera
- Front Frame-Mounted Black Recovery Hooks
- Wi-Fi Hotspot Capable
- Trailering Package
- ProGrade Trailering System
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: rear-wheel
- Engine location: front
- Fuel economy city: 16mpg
- Fuel economy combined: 17mpg
- Fuel economy highway: 20mpg
- 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): 201mm (7.9")
- Ramp breakover angle: 19 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: 1,917mm (75.5")
- Exterior length: 5,890mm (231.9")
- Front headroom: 1,092mm (43.0")
- 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: 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
Standard Features
- SLT Convenience Package
- Chrome Wheel to Wheel Assist Steps
- Front Bucket Seats
- Floor-Mounted Center Console
- Ventilated Driver and Front Passenger Seats
- Wireless Charging
- Premium Bose 7-Speaker Sound System
- Power Rake and Telescoping Steering Column
- Enhanced Cooling Radiator
- Heavier Duty Rear Springs
- Increased RGAWR
- 220 Amp Alternator
- Hitch View
- in-Vehicle Trailering System App
- 10-Way Power Driver Seat Adjuster with Lumbar
- 10-Way Power Passenger Seat Adjuster with Lumbar
- Driver Memory
- Heated Driver and Front Outboard Passenger Seating
- GMC Pro Safety
- 6-Speaker Audio System Feature
- SiriusXM with 360L Trial Subscription
- Electric Rear-Window Defogger
- Power Door Locks
- Push Button Start
- Remote Vehicle Starter System
- Keyless Open and Start
- Color-Keyed Carpeting Floor Covering
- OnStar Services Capable
- Wi-Fi Hotspot Capable
- 120-Volt Interior Power Outlet
- 2 Charge/Data USB Ports
- 2 Type-C Charge-Only Rear USB Ports
- HD Rear Vision Camera
- Front 40/20/40 Split-Bench Seat
- Steering Wheel Audio Controls
- Manual Tilt-Wheel and Telescoping Steering Column
- Power Front Windows with Driver Express Up/Down
- Power Front Passenger Windows with Express Up/Down
- Power Rear Windows with Express Down
- Deep-Tinted Glass
- Chrome Header and Chrome Grille Insert Bars
- LED Cargo Area Lighting
- Perimeter Lighting
- Front Frame-Mounted Black Recovery Hooks
- Wheels: 18" x 8.5" 6-Spoke Machined Aluminum
- Rear Wheelhouse Liners
- Front Rain-Sensing Wipers
- Trailering Package
- 170 Amp Alternator
- Auxiliary External Transmission Oil Cooler
- Auto-Locking Rear Differential
- Integrated Trailer Brake Controller
- 2 Charge/Data USB Ports Inside Center Console
- Electronic Precision Shift
- Forward Collision Alert
- Following Distance Indicator
- Front Pedestrian Braking
- IntelliBeam Automatic High Beam on/Off
- Lane Keep Assist with Lane Departure Warning
- Automatic Emergency Braking
- Buckle to Drive
- 6-Speaker Audio System Feature
- Wireless Apple CarPlay/Wireless Android Auto
- 120-Volt Bed Mounted Power Outlet
- Hitch Guidance
Dealer Notes
KBB.com Consumer Reviews
- 3.0
Nice truck
By froggy on Sunday, December 06, 2020
I purchased this truck brand new and at 3900 miles I started to have a misfire. The warranty put a refurbished rebuilt engine in it. I was not aware that the warranty doesn't put new parts in just refurbished rebuilt parts. I traded in and lost my favorite blue truck. Not a fan of the whole process. Love the truck just not how the warranty went. I would not own another brand or model the 2020 is the nicest riding and looking. Just got a bad motor from the manufacture. - 5.0
Great Truck
By Mel on Sunday, April 25, 2021
I love it, I get compliments every where I go, and it apparently worth more than I paid for it brand new, a year and a half later. can't ask for much more than that. - 5.0
Well done GM
By Tony on Thursday, November 26, 2020
This truck has a 10 speed transmission that you can barely feel it shift. Traded in an F150 and test drove a similar equipped Ram. Although the Ram was nice, the styling of the GMC won me over, along with the tailgate! It also pulls my boat way better than the Ford, just smoother all around. The cabin is very quiet and the gas mileage is much better than V8 Ford. The cabin is super quiet and the ride is awesome. Love the adaptive cruise control too. The technology is fine and the screen is plenty big. Remember, you are driving this truck, not going to thr drive in! Most importantly, the controls are simple to use and Bose stereo sounds great! Oh, and I got it cheaper than the similar Ram too!