2026 GMC Sierra 3500

At DeMontrond Buick GMC, we take pride in delivering a trusted, family-owned dealership experience right here in Houston. Since 1953, our mission has remained the same to provide dependable vehicles, expert service, and a welcoming, no-pressure environment for every customer. Whether youre searching for a new GMC truck, a stylish Buick SUV, or a quality pre-owned vehicle, our team is here to guide you every step of the way. Why Buy from DeMontrond Buick GMC As one of Houstons top-rated Buick and GMC dealerships, DeMontrond is recognized for exceptional value, service, and selection. Our expansive inventory includes popular GMC models such as the Sierra, Canyon, Yukon, Terrain, and Acadia, along with Buick favorites including the Encore, Enclave, Envision, and Envista. Youll also find a wide range of certified pre-owned cars, trucks, and SUVs from all makes and models. With DeMontrond Direct, you can shop and buy online with fast approvals and convenient delivery options. Our Certified Service Center is staffed by GM-trained technicians who use genuine OEM parts for everything from regular maintenance to collision repairs. We also provide flexible financing through a broad network of lenders for all credit types and offer modern dealership amenities including free Wi-Fi, fresh coffee, a comfortable waiting area, a childrens play zone, loaner vehicles, and rental assistance. Family-owned and operated since 1953, DeMontrond Buick GMC continues to earn the trust and loyalty of drivers across Houston, Spring, The Woodlands, Tomball, and Cypress.1SA Pro Safety Plus Package (Auto-Dimming Inside Rear-View Mirror, Lane Change Alert with Side Blind Zone Alert, Perimeter Lighting, Power-Adjustable Black Outside Mirrors, Rear Cross Traffic Alert, and Ultrasonic Front and Rear Park Assist), Convenience Package (Deep-Tinted Glass, Electric Rear-Window Defogger, EZ Lift Power Lock and Release Tailgate, and LED Cargo Area Lighting), Gooseneck/5th Wheel Prep Package (Spray-on Pickup Bedliner), Hitch Package, Preferred Equipment Group 1SA (2 Charge/Data USB Ports, 2-Speed Electronic Shift Transfer Case, Chrome Grille with Flat Black Grille Insert Bars, Push Button Start, Remote Keyless Entry, Solar Absorbing Tinted Glass, and Wireless Phone Projection), Suspension Package, 10-Speed Automatic, 4WD, Black Cloth, 120-Volt Bed Mounted Power Outlet, 120-Volt Instrument Panel Power Outlet, 2 Charge-Only Rear USB Ports, 220 Amp Alternator, 4-Way Manual Driver Seat Adjuster, 4-Way Manual Passenger Seat Adjuster, 4-Wheel Disc Brakes, 6 Speakers, 6-Speaker Audio System Feature, ABS brakes, Air Conditioning, AM/FM radio, Auto High-beam Headlights, Automatic Emergency Braking, Bed View Camera, Brake assist, Buckle to Drive, Bumpers: chrome, Color-Keyed Carpeting Floor Covering, Compass, Delay-off headlights, Driver door bin, Dual front impact airbags, Dual front side impact airbags, Electronic Stability Control, Emergency communication system: OnStar Services capable, Engine Block Heater, Exhaust Brake, Exterior Parking Camera Rear, Following Distance Indicator, Forward Collision Alert, Front 40/20/40 Split-Bench Seats with Lockable Storage, Front anti-roll bar, Front Center Armrest w/Storage, Front License Plate Kit, Front Pedestrian Braking, Front reading lights, Front Rubberized-Vinyl Floor Mats, Front wheel independent suspension, Fully automatic headlights, GMC MultiPro Tailgate, Heavy-Duty 80 Amp-Hour Battery, High Idle Switch, Illuminated entry, Inside Rear-View Auto-Dimming Mirror, IntelliBeam Automatic High Beam on/Off, Lane Departure Warning System, Low tire pressure warning, Occupant sensing airbag, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Pickup Bed, Power steering, Power windows, Premium audio system: GMC Infotainment System, Radio: AM/FM with GMC In Price includes: $2000 - Bonus Cash. Exp. 11/30/2026 $3500 - Purchase Allowance. Exp. 11/30/2026