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O'Neil GMC · Warminster, PA

2026 GMC Sierra 1500 Denali Ultimate

5 miles · truck

PUBLISHED DEALER DETAILS

Complete vehicle specifications

Year2026
MakeGMC
ModelSierra 1500
TrimDenali Ultimate
Stock numberT778
Mileage5 miles
BodyPickup
Engine6.2L V8
Cylinders8
Displacement6.2L
TransmissionAutomatic
Drivetrain4WD
FuelGasoline
MPG15 city / 19 hwy
ExteriorGlacier White Tricoat
InteriorAlpine Umber, Full Grain Leather Front Seat Trim
Towing8900

Vehicle description

Glacier White Tricoat 2026 GMC Sierra 1500 Denali Ultimate 4WD 10-Speed Automatic EcoTec3 6.2L V8 This 2026 GMC Sierra 1500 Denali Ultimate in Glacier White Tricoat features: 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 (148)

  • Super Cruise
  • Adaptive Cruise Control
  • Bluetooth®
  • Heated Steering Wheel
  • Remote Start
  • 4WD/AWD
  • Android Auto
  • Apple CarPlay
  • Keyless Entry
  • Leather Seats
  • Wi-Fi Hotspot
  • Emergency Brake Assist
  • Sunroof/Moonroof
  • 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
  • Trailering Package includes trailer hitch, 7-pin and 4-pin connectors and (CTT) Hitch Guidance
  • Rear axle, 3.23 ratio
  • Pickup bed
  • Push Button Start
  • Air filter, heavy-duty
  • Electronic Precision Shift and steering column paddle shifters
  • Automatic Stop/Start
  • Hill Descent Control (Requires 4WD model.)
  • Auto-locking rear differential
  • Transfer case, two-speed, electronic Autotrac with push button control (4WD models only)
  • Denali Premium Suspension with Adaptive Ride Control
  • Four wheel drive
  • Frame, fully-boxed, hydroformed front section
  • Trailer brake controller, integrated
  • Recovery hooks, chrome
  • 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, aluminized stainless-steel muffler and tailpipe
  • Wheels, 22" (55.9 cm) 7-spoke ultra-bright machined with bright chrome accents and dark paint (Includes (SFE) Wheel locks, LPO.)
  • Tires, 275/50R22SL all-season, blackwall
  • Tire, spare 255/80R17SL all-season, blackwall
  • Wheel, 17" x 8" (43.2 cm x 20.3 cm) full-size, steel spare
  • Wheelhouse liners, rear (Deleted with (E3Z) Carbon Fiber Composite Bed.)
  • LPO, Wheel locks, set of 4 (dealer-installed)
  • Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door
  • Sunroof, power
  • Bumper, front, body-color lower
  • Bumper, rear body-color with corner steps
  • CornerStep, rear bumper
  • GMC MultiPro Power Steps, power-retractable with rearward articulating, (providing bed access). Foot activated running side board.
  • Moldings, window surround, Chrome
  • Grille (High gloss black header with Signature Denali Grille in Vader chrome.)
  • 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
  • Window, power, rear sliding with rear defogger
  • 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
  • GMC Front and Rear Logo, Vader Chrome
  • 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
  • LPO, MultiPro Tailgate Audio System by Kicker (dealer-installed)
  • SiriusXM Trial Subscription
  • Bose Premium Series with 12-speaker system with CenterPoint, Richbass woofer and AudioPilot
  • 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.)
  • Seats, front bucket with center console
  • Seat trim, Full grain leather front
  • Seat adjuster, driver 16-way power including lumbar and massage
  • Seat adjuster, passenger 16-way power including lumbar and massage
  • Seating, heated driver and front outboard passenger
  • Driver memory recalls driver "presets" for power driver seat and outside mirrors
  • Seats, ventilated driver and front passenger
  • Seats, heated second row outboard seats
  • Center Console, floor-mounted with cup holders, cell phone storage, power cord management, hanging file folder capability
  • Floor covering, color-keyed carpeting
  • Floor mats, carpeted front (Includes Premium floor mats with corner applique. Deleted when (BKF) Premium Floor Liners are ordered.)
  • Floor mats, carpeted rear (Includes Premium floor mats. Deleted when (BKF) Premium Floor Liners are ordered.)
  • Steering column, power rake and telescoping
  • 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
  • Multicolor 15" Diagonal Head-Up 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
  • Universal Home Remote
  • Theft-deterrent system, unauthorized entry
  • Steering column lock, electrical
  • Wireless Charging
  • USB Ports, 2 (first row) located on console
  • USB Ports, 2, Charge/Data ports located inside center console
  • 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
  • Rear Camera Mirror, inside rearview auto-dimming with full camera display
  • Assist handles front A-pillar mounted for driver and passenger, rear B-pillar mounted
  • Enhanced Automatic Emergency Braking
  • 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 View with image adjustment, Pan/Zoom/Tilt
  • Hitch Guidance
  • Trailer Camera Provisions and trailer viewing software
  • Front and Rear Park Assist, ultrasonic
  • Following Distance Indicator (Included and only available with (PDI) GMC Pro Safety.)
  • Forward Collision Alert (Included and only available with (PDI) GMC Pro Safety.)
  • Trailer Side Blind Zone Alert
  • Rear Cross Traffic Braking
  • Rear Pedestrian Alert
  • Safety Alert Seat (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: 19 MPG
  • Combined: 16 MPG
  • Fuel System: Direct Injection
  • Fuel Tank Capacity: 24 gal
  • Fuel Type: Gasoline Fuel
  • Horse Power: 420
  • Rear Wheel: Single
  • Trailering Capacity: 8900 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 100 miles of Warminster, Pennsylvania
Asking price$78,530Dealer asking price · 5 mi
Market value$77,177Market value · based on 7 comparable cars
vs. market Fair price+1.8%Fair price · based on 7 comparable cars

Where this price sits

Among the highest-priced · 0% of 7 similar listings ask more than this car.

$74,969lowest$78,530highest
Middle 50% of asking pricesMarket valueThis car

Price vs. market value

+1.8%
−25%Market value+25%
Fair price$1,353 above the market value of $77,177

Price range

$78,530
$74,969$78,530
8th lowest price of 8 similar listings within 100 milesTick marks the market value · range of 7 similar listings

AutosXchange Insights

  • Compared with 7 new 2026 GMC Sierra 1500 Denali Ultimate listings within 100 mi.
  • Priced $1,353 above the market value of 7 comparable cars — compare options, condition and history.
  • 8th lowest price of 8 similar listings within 100 miles.
  • About 5 miles per year of age (U.S. average is roughly 12,000–14,000).
  • Stock # T778 — 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: $78,186 → $78,530 (+$344).

$77.8k$78.0k$78.2k$78.4k$78.6k$78.8kNov 5Nov 7Nov 8Nov 10Nov 12Nov 14+$344 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 14); 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 Denali Ultimate · new · within 100 miles of Warminster, Pennsylvania. All 7 comparable cars for sale, nearest first.

More GMC Sierra 1500 near Warminster

All years and trims. Nearest first.