Dave Sinclair Buick GMC · St Louis, MO

2026 GMC Sierra 1500 SLT

9 miles · truck

1 / 50 photos

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026

MakeGMC

ModelSierra 1500

TrimSLT

VIN3GTPHDE86TG148392

Stock numberT260377

Mileage9 miles

BodyPickup

Engine3.0L 6-cyl turbo

Displacement3.0L

TransmissionAutomatic

Drivetrain4x2

FuelDiesel

MPG23 city / 28 hwy

ExteriorOnyx Black

Towing9100

Vehicle description

Thank you for choosing Dave Sinclair Buick GMC This 2026 GMC Sierra 1500 SLT, has a Onyx Black exterior and a Jet Black interior. Please call us at (314) 272-4060 and reference stock number T260377 for further details. WHY THIS VEHICLE? SLT Convenience PackageFront Bucket SeatsFloor-Mounted Center ConsoleWireless ChargingVentilated Driver and Front Passenger SeatsPower Rake and Telescoping Steering ColumnPremium Bose 7-Speaker Sound SystemSLT Premium Plus Package ($5,335 value)Chrome Wheel to Wheel Assist StepsSpray-On Pickup Bedliner with GMC Logo20" Polished Aluminum WheelsProGrade Trailering SystemHitch ViewIn-Vehicle Trailering System AppPreferred Equipment Group 4SAPower Front Passenger Windows with Express Up/downPower Rear Windows with Express DownDeep-Tinted GlassPower Door LocksKeyless Open and StartPower Front Windows with Driver Express Up/downRear Wheelhouse LinersColor-Keyed Carpeting Floor CoveringPush Button StartRemote Vehicle Starter SystemElectric Rear-Window DefoggerFront Rain-Sensing WipersAuto-Locking Rear DifferentialChrome Header and Chrome Grille Insert BarsIntegrated Trailer Brake Controller120-Volt Interior Power OutletAuxiliary External Transmission Oil Cooler170 Amp AlternatorManual Tilt-Wheel and Telescoping Steering ColumnGMC Pro SafetyPerimeter LightingSiriusXM with 360L Trial Subscription2 type-C Charge-Only Rear USB Ports2 Charge/data USB PortsOnStar Services CapableLED Cargo Area LightingSteering Wheel Audio Controls6-Speaker Audio System FeatureTheft Deterrent System (unauthorized Entry)HD Rear Vision CameraFront Frame-Mounted Black Recovery HooksWi-Fi Hotspot CapableTrailering PackageSLT Preferred PackagePower Sliding Rear Window with Rear DefoggerHeated 2nd Row Outboard SeatsAdaptive Cruise ControlUniversal Home RemoteSierra Safety Plus PackageSafety Alert SeatTrailer Camera ProvisionsUltrasonic Front and Rear Park AssistRear Cross Traffic BrakingRear Pedestrian DetectionTrailer Side Blind Zone AlertHD Surround Vision Safety and Security Forward collision mitigation - Forward thinking. You look away for just a second and suddenly the vehicle in front of you has stopped. That's when the forward collision mitigation system comes to life. When it senses an impending impact, it will activate a combination of features to help prevent or reduce the severity of an accident. Forward collision mitigation is always looking ahead. Pedestrian impact prevention - An extra step toward safety. Pedestrians don't always stop, look, and listen, but with Pedestrian Impact Prevention, your vehicle is equipped to better see them and avoid them. This system constantly monitors the road ahead to identify and track pedestrians. It projects that image to an interior display screen, AND should an impact become likely, Pedestrian impact prevention takes steps to avoid a collision. Rear camera - Watching your back! The rear camera helps you see obstacles and hazards you otherwise couldn't by showing enhanced images of what is behind you. The rear camera is an extra set of eyes that's both convenient and safe.Technology and Telematics Apple CarPlay/Android Auto smart device wireless mirroring Mobile hotspot - WiFi on the fly. Connect your devices to the Internet through your vehicles private mobile hotspot and take the internet wherever your journey takes you, without eating up your data allowance. Find the hotspot with mobile hotspot. EMISSIONS, FEDERAL REQUIREMENTS, ENGINE, DURAMAX 3.0L TURBO-DIESEL I6, TRANSMISSION, 10-SPEED AUTOMATIC WITH ELECTRONIC PRECISION SHIFT, ELECTRONICALLY CONTROLLED, GVWR, 7000 LBS. (3175 KG), REAR AXLE, 3.23 RATIO, WHEELS, 20" POLISHED ALUMINUM WHEELS, TIRES, 275/60R20SL ALL-TERRAIN, BLACKWALL, TIRE, SPARE 255/80R17SL ALL-SEASON, BLACKWALL, ONYX BLACK, SEATS, FRONT BUCKET, JET BLACK, PERFORATED LEATHER-APPOINTED FRONT OUTBOARD SEAT TRIM, AUDIO SYSTEM, 13.4" DIAGONAL PREMIUM GMC INFOTAINMENT SYSTEM WITH GOOGLE BUILT IN APPS SUCH AS NAVIGATION AND VOICE ASSISTANCE, INCLUDES COLOR TOUCH-SCRE

Features & options (250)

Adaptive Cruise Control
Bluetooth®
Heated Steering Wheel
Remote Start
Android Auto
Apple CarPlay
Keyless Entry
Leather Seats
Wi-Fi Hotspot
Auto Dimming Mirror
Emergency Brake Assist
Lane Departure Warning
Lane Keep Assist
Wireless Phone Charging
Blind Spot Monitor
Forward Collision Warning
Navigation System
Parking Assistance
Rear View Camera
Tow Hitch/Tow Package
Automatic Climate Control
Entertainment System
Turbo Charged Engine
Premium Sound System
Place and receive hands-free phone calls
Steering-wheel mounted controls
May require additional optional equipment
Wi-Fi Hotspot capable
SiriusXM Trial Subscription
13.4" diagonal GMC Premium Infotainment System with Google built-in
Bluetooth® streaming audio for music and select phones
Wireless Apple CarPlay capability for compatible phones
Wireless Android Auto capability for compatible phones
Customize and manage entertainment and vehicle feature setting
Voice-activated technology for phone
SiriusXM with 360L Trial Subscription
Wireless Apple CarPlay/Wireless Android Auto capability for compatible phones
Can use Apple CarPlay and Android Auto wirelessly
Chrome rear bumper
With integrated CornerSteps
Chrome mirror caps
Grille (Chrome header and chrome grille insert bars with gloss black accents.)
LED projectors with Fade-on/ Fade-off animation, LED turn signals and Daytime Running Lamps
Perimeter Lighting
Spare tire carrier lock
Helps keep spare tire secure
Utilizes the same key as the door and ignition
Rainsense automatic wipers
LED fog lamps
Help minimize glare in adverse driving conditions
17" full-size spare steel wheel with Black finish
Cab-mounted cargo area lamps
With switch in switch bank left of the steering wheel
Illuminates the cargo bed area
Cargo bed LED lighting
Provides light to find cargo in the bed
Rear pillar lamps
Tailgate and bed rail protection caps
Full chrome surround window moldings
Rear wheelhouse liners
Chrome front bumper
GMC MultiPro Tailgate
Tailgate with EZ Lift assist, power lock & release
Hitch area lighting
Chrome door handles
CornerStep rear bumper
Located at each end of the rear bumper
Textured step pads to help provide secure footing
IntelliBeam
Deep-tinted glass
Provides added protection from sun and glare
Heated, power, driver-side auto-dimming, power-folding outside mirrors
Puddle lamps
Memory setting
Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
Onyx Black
17" 255/80R17SL all-season, blackwall spare tire
6" chrome rectangular full length assist steps
Textured step pads help provide secure footing
Extends from wheel well to wheel well
Power sliding rear window with rear defogger
Front license plate bracket
20" Polished aluminum wheels with technical gray painted accents
20" 275/60R20SL all-terrain, blackwall tires
Spray-on bedliner
Includes logo on all trims except PRO
Inside rearview auto-dimming mirror
13.4" diagonal multicolor reconfigurable Infotainment screen
Up-level rear seat with storage package
60/40 Full-length folding bench seat
Seatback storage on left and right side
Center fold out armrest with 2 cupholders
Underseat storage (full cab width)
USB ports
(2) Charge ports located on rear of console
(2) Data/charge ports located on instrument panel
Assist handles
Front A-pillar mounted for Driver and Passenger
Rear B-pillar mounted
Wrapped steering wheel
Keyless Open and Start
Compass
Located in instrument cluster
Outside temperature display
Located in infotainment display
Driver memory
Power windows
Driver with express-up/down
Carpeted floor covering
Color-keyed to match the interior
120-volt power outlet
3-prong auxiliary household-style outlet
Located on the instrument panel
Steering column lock, electrical
Dual-zone automatic climate control
Allows individual climate settings for both driver and front passenger
12.3" diagonal color Driver Information Center
Rear carpeted floor mats
Helps protect your interior from road debris and the elements
Denali model has unique premium carpet
Denali Ultimate model has premium floor mats
10-way power driver seat with power lumbar
Moves the seat forward and back, and up and down
Tilt the seat cushion and seatbacks
Rear window defogger
Heated driver and front outboard passenger seats
Individually controlled
120-volt box-mounted power outlet
Located in the pickup bed
Power door locks
Programmable
10-way power front passenger seat
Forward and back
Up and down
Tilt seat cushion back and upright
Recline seatback up and down
Includes 2-way power lumbar
Rear air vents
Provides cabin comfort for rear occupants
Front passenger with express-up/down
Front carpeted floor mats
Denali Ultimate model has premium floor mats with corner applique
Seat trim, Perforated leather-appointed front outboard
Power windows with rear express-down
Theft-deterrent unauthorized entry system
Helps deter unauthorized entry, helping to protect your vehicle
Front center console
You can always override the feature and take control
Front bucket seats
Includes center console
Universal Home Remote
3-channel programmable
Power tilt and telescoping steering column
Use the driver memory to save and recall memory settings
Provides extra comfort when entering or exiting the vehicle
Wireless Charging
Uses induction technology for portable electronic devices
Convenient charging location at the front of the center console
Device may require optional case for phones that are compatible
Jet Black, Perforated leather-appointed front outboard seat trim
Ventilated driver and front passenger seats
Cooling feature includes both seatbacks and cushions
In-Vehicle Trailering App
Checklist
Trailer light sequencing
Trailer maintenance reminders
Trailer security alerts
Trailer mileage
Tow/haul reminder
Trailer electrical diagnostics
Heated rear outboard seats
Cargo tie-downs (12)
Brake pad wear indicator
Electric Power Steering
Electric, rack-mounted with variable assist
Steering assist is greater during low-speed maneuvers, such as parking
Black vertical recovery hooks
Two front frame-mounted
3.23 rear axle ratio
Integrated trailer brake controller
Integrated with the antilock brake system (ABS)
4-wheel antilock disc brakes
Single-outlet exhaust
Rear wheel drive
Fully boxed frame
Hydroformed front section
High-strength steel
Heavy-duty 730 cold-cranking amps battery
80 Amp-hr
Maintenance-free with rundown protection and retained accessory power
Aluminized stainless-steel muffler and tailpipe
Capless fuel fill
Heavy-duty 850 cold-cranking amps battery
95 Amp-hr
High-Capacity Suspension Package
220-amp alternator
Emissions, Federal requirements
7,000 lbs. GVWR
SLT Preferred Equipment Group includes standard equipment
SLT Premium Plus Package
SLT Convenience Package
SLT Preferred Package
Sierra Safety Plus Package
ProGrade Trailering System
20" Polished aluminum wheels
6" Chrome assist steps
Spray-on bedliner with GMC Logo
Bucket seats
Center console
Heated and ventilated front seats
USB ports in center console
Bose Premium Sound System with Richbass woofer
Power Rake/ Telescoping steering column
Rear Cross Traffic Braking
Rear Pedestrian Alert
Trailer Camera Provisions
Trailer Side Blind Zone Alert
HD Surround Vision
Perimeter lighting on SLE and Elevation
Recovery hooks on 2WD SLE models
High gloss Black mirror caps on Elevation
Front and Rear Park Assist
Safety Alert Seat on SLT
Hitch Guidance with Hitch View
Power rear sliding window
Option/package discount
LED Daytime Running Lamps
Daytime Running Lamps automatically illuminate signature lighting
Rear Seat Belt Indicator
Tire Pressure Monitoring System with Tire Fill Alert
Hitch Guidance
Can help you line up the hitch to your trailer
OnStar Basics
Drive confidently with core OnStar services including
Remote commands
Built-in voice assistance
Real-time traffic and navigation
Automatic Crash Response to help if you're in need
Lane Keep Assist with Lane Departure Warning
You may receive additional Lane Departure Warning alerts if needed
Following Distance Indicator
Designed to help you maintain a safe following distance
Buckle to Drive
Rear Seat Reminder
Seat Belt Adjustable Guide Loops
Front row only
Forward Collision Alert
6 airbags
Dual-stage frontal airbags for driver and front outboard passenger
Head-curtain airbags for outboard seating positions

Dealer-provided information may change. Confirm availability, price, vehicle condition, taxes and fees with the selling dealership.

AutosXchange Intel

Vehicle price analysis

Live listings · nationwide

Asking price$50,501Dealer asking price · 9 mi

Market value$55,203Market value · based on 134 comparable cars

vs. market-8.5%Not rated · prices vary widely

Where this price sits

Among the lowest-priced · 85% of 134 similar listings ask more than this car.

Market value $55,203

This car$50,501

$44,670lowest$65,319highest

Middle 50% of asking pricesMarket valueThis car

Price vs. market value

−25%Market value+25%

Not rated · comparable prices vary too widely$4,702 below the market value of $55,203

Price range

$44,670$65,319

21st lowest price of 135 similar listings nationwideTick marks the market value · range of 134 similar listings

AutosXchange Insights

Compared with 134 new 2026 GMC Sierra 1500 SLT listings nationwide.
Priced $4,702 below the market value of 134 comparable cars.
21st lowest price of 135 similar listings nationwide.
About 9 miles per year of age (U.S. average is roughly 12,000–14,000).
Stock # T260377 — mention it when you call or text.

How we calculate market value: comparable cars for sale now plus their last listed prices.

Price history

Price tracked by AutosXchange since Nov 6, 2026. No price change at this dealership since Nov 6 ($50,501).0 price changes at this dealership: $50,501 → $50,501.

AutosXchange Intel Hub: Price changes for this model in Missouri · This model in the Intel Hub · Market movers in Missouri

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 11); earlier listings at other dealerships are shown by state only. Source: AutosXchange Intel Hub, autos-xchange.com/market.

Cars this price is compared to

Same 2026 Sierra 1500 SLT · new · nationwide. Showing the 12 nearest of 134 comparable cars for sale, nearest first.

17 photos