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O'Neil GMC · Warminster, PA

2026 GMC Sierra 1500 SLT

6 miles · truck · Price dropped $2,105

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026
MakeGMC
ModelSierra 1500
TrimSLT
Stock numberT841
Mileage6 miles
BodyPickup
Engine5.3L 8-cyl
Cylinders8
Displacement5.3L
TransmissionAutomatic
Drivetrain4WD
FuelGasoline
MPG15 city / 18 hwy
ExteriorOnyx Black
Towing9200

Vehicle description

Onyx Black 2026 GMC Sierra 1500 SLT 4WD 10-Speed Automatic EcoTec3 5.3L V8This 2026 GMC Sierra 1500 SLT in Onyx Black features: Recent Arrival!O'Neil GMC in Warminster serving Philadelphia since 1965. See the rest of our inventory at ONEILGMC.COM. Price excludes tax, tags, title, license, and dealer fees, additional rebates may apply, but internet price does include the following rebates:$6250 - Buick & GMC Consumer Cash Program. Exp. 11/30/2026 $4,000 - O'Neil GMC Discount – Available to all customers. excl. 2026 Sierra 1500 PRO Exp. 12/31/2027

Features & options (131)

  • Adaptive Cruise Control
  • Bluetooth®
  • Heated Steering Wheel
  • Remote Start
  • 4WD/AWD
  • 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
  • Premium Sound System
  • Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance
  • Rear axle, 3.23 ratio (Not available with (NHT) Max Trailering Package.)
  • Pickup bed
  • Push Button Start
  • Automatic Stop/Start
  • Auto-locking rear differential
  • Transfer case, single speed, electronic Autotrac with push button control (4WD models only)
  • Suspension Package, Standard
  • Four wheel drive
  • Frame, fully-boxed, hydroformed front section
  • Trailer brake controller, integrated
  • Recovery hooks, front, frame-mounted, Black
  • Cargo tie downs (12), fixed
  • Steering, Electric Power Steering (EPS) assist, rack-and-pinion
  • Brakes, 4-wheel antilock, 4-wheel disc with DURALIFE rotors
  • Brake lining wear indicator
  • Capless Fuel Fill
  • Exhaust, single outlet
  • Exhaust, aluminized stainless-steel muffler and tailpipe
  • Wheels, 18" x 8.5" (45.7 cm x 21.6 cm) 6-spoke machined aluminum with Dark Grey Metallic accents
  • Tires, 265/65R18SL all-season, blackwall
  • Tire, spare 265/70R17SL all-season, blackwall
  • Wheel, 17" x 8" (43.2 cm x 20.3 cm) full-size, steel spare
  • Wheelhouse liners, rear
  • Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
  • Bumper, front chrome lower
  • Bumper, rear chrome with bumper CornerSteps
  • CornerStep, rear bumper
  • Moldings, window surround, Chrome
  • Grille (Chrome header and chrome grille insert bars with gloss black accents.)
  • Headlamps, LED projectors with Fade-on/Fade-off animation, LED turn signals and Daytime Running Lamps
  • IntelliBeam, automatic high beam on/off (Included and only available with (PDI) GMC Pro Safety.)
  • Fog lamps, LED
  • Lighting, perimeter
  • Taillamps, LED LED signature taillight with LED stop, turn & reverse and Fade-on/Fade-off animation
  • Mirrors, outside heated power-adjustable, power-folding and driver-side auto-dimming puddle lamps, side perimeter lighting and memory
  • Mirror caps, chrome
  • Wipers, front rain-sensing
  • Glass, deep-tinted
  • Lamps, cargo area, cab mounted integrated with center high mount stop lamp, with switch in bank on left side of steering wheel
  • LED Cargo Area Lighting located in cargo bed activated with switch on center switch bank or key fob
  • Tailgate, GMC MultiPro Tailgate with six functional load/access features
  • Tailgate, gate function manual with EZ Lift includes power lock and release, includes hitch area light
  • Tailgate and bed rail protection caps, top
  • Door handles, chrome
  • SiriusXM Trial Subscription
  • Audio system feature, 6-speaker system
  • Bluetooth for phone, connectivity to vehicle infotainment system
  • Wireless, Apple CarPlay / Wireless Android Auto
  • Steering wheel audio controls
  • Wi-Fi Hotspot capable (Terms and limitations apply. See onstar.com or dealer for details.)
  • Seat trim, Perforated leather-appointed front outboard
  • Seat adjuster, driver 10-way power including lumbar
  • Seat adjuster, passenger 10-way power including lumbar
  • Seating, heated driver and front outboard passenger
  • Driver memory recalls driver "presets" for power driver seat and outside mirrors
  • Floor covering, color-keyed carpeting
  • Floor mats, carpeted front (Deleted when (RIA) All-weather floor liner, LPO is ordered or (BKF) Premium Floor Liners are ordered.)
  • Floor mats, carpeted rear (Deleted when (RIA) All-weather floor liner, LPO is ordered or (BKF) Premium Floor Liners are ordered.)
  • Steering column, manual Tilt-Wheel and telescoping
  • Steering wheel, wrapped
  • Steering wheel, heated
  • Driver Information Center, enhanced, 12.3" diagonal reconfigurable multicolor digital display
  • GMC Premium information Display- 13.4" diagonal Multicolor touch screen
  • Compass, located in instrument cluster
  • Exterior Temperature Display, located in radio display
  • Windows, power front, drivers express up/down
  • Window, power front, passenger express up/down
  • Windows, power rear, express down
  • Door locks, power
  • Keyless Open and Start includes remote keyless entry
  • Remote vehicle starter system
  • Cruise control, steering wheel-mounted
  • Theft-deterrent system, unauthorized entry
  • Steering column lock, electrical
  • USB Ports, 2, Charge/Data ports located on instrument panel
  • Power outlet, interior power outlet, 120-volt (400 watts shared with (KC9) bed mounted power outlet)
  • USB ports, (2) charge-only, rear
  • Power outlet, bed mounted, 120-volt (400 watts shared with (KI4) interior power outlet)
  • Air conditioning, dual-zone automatic climate control
  • Air vents, rear
  • Defogger, rear-window electric
  • Mirror, inside rearview auto-dimming
  • Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
  • Automatic Emergency Braking (Included and only available with (PDI) GMC Pro Safety.)
  • Front Pedestrian Braking (Included and only available with (PDI) GMC Pro Safety.)
  • Daytime Running Lamps, LED signature lighting
  • OnStar services capable (See onstar.com for details and limitations. Services vary by model. Service plan required.)
  • Hitch Guidance
  • HD Rear Vision Camera (Removed with (UV2) HD Surround Vision.)
  • Following Distance Indicator (Included and only available with (PDI) GMC Pro Safety.)
  • Forward Collision Alert (Included and only available with (PDI) GMC Pro Safety.)
  • Lane Keep Assist with Lane Departure Warning (Included and only available with (PDI) GMC Pro Safety.)
  • Seat Belt Adjustable Guide Loops, front row only
  • Tire Pressure Monitoring System, auto learn includes Tire Fill Alert (does not apply to spare tire)
  • Rear Seat Reminder
  • Rear Seat Belt Indicator
  • DriveType: Four Wheel Drive
  • City: 15 MPG
  • Hwy: 18 MPG
  • Combined: 16 MPG
  • Fuel System: Direct Injection
  • Fuel Tank Capacity: 24 gal
  • Fuel Type: Gasoline Fuel
  • Horse Power: 355
  • Rear Wheel: Single
  • Trailering Capacity: 9200 lbs

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

AutosXchange Intel

Vehicle price analysis

Live listings · within 50 miles of Warminster, Pennsylvania
Asking price$58,115Dealer asking price · 6 mi
Market value$59,760Market value · based on 76 comparable cars
vs. market Fair price-2.8%Fair price · based on 76 comparable cars

Where this price sits

Among the lowest-priced · 76% of 76 similar listings ask more than this car.

$54,455lowest$67,113highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

-2.8%
−25%Market value+25%
Fair price$1,645 below the market value of $59,760

Price range

$58,115
$54,455$67,113
19th lowest price of 77 similar listings within 50 milesTick marks the market value · range of 76 similar listings

AutosXchange Insights

  • Compared with 76 new 2026 GMC Sierra 1500 SLT listings within 50 mi.
  • Priced $1,645 below the market value of 76 comparable cars.
  • 19th lowest price of 77 similar listings within 50 miles.
  • About 6 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # T841 — 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 5, 2026. 1 price change at this dealership: $60,220 → $58,115 (−$2,105).

$57k$58k$59k$60k$61kNov 5Nov 6Nov 8Nov 9Nov 11Nov 12−$2,105 Nov 6

Market activity: O'Neil GMC cut prices on 47 GMC Sierra 1500 by an average of $2,003

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

Dealer-advertised asking prices as observed by AutosXchange (data as of Nov 12); 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 · within 50 miles of Warminster, Pennsylvania. Showing the 12 nearest of 76 comparable cars for sale, nearest first.

More GMC Sierra 1500 near Warminster

All years and trims. Nearest first.