2026 GMC Sierra 1500 SLT $13,582 off MSRP!Explore our extensive inventory of new and pre-owned Buick and GMC vehicles at LaFontaine Buick GMC of Highland. Each vehicle is meticulously inspected to meet our high standards, guaranteeing you drive away in a reliable and stylish car. When you shop with us, you get more than just a car; you get the LaFontaine Family Deal. This means transparent pricing, exceptional customer service, and a commitment to making you feel like part of our family. Our team operates with integrity, respect, and a dedication to exceeding your expectations. Visit LaFontaine Buick GMC of Highland today and discover the perfect vehicle for your needs.Located at 4000 W Highland Rd, Highland, MI, LaFontaine Buick GMC Highland is easily accessible and open six days a week to serve you better. Whether you're looking for a new vehicle, need service, or want to explore financing options, our friendly staff is here to assist you. Check out the features on this 2026 GMC Sierra 1500 High Capacity Suspension Package, Max Trailering Package (Enhanced Cooling Radiator, Heavier Duty Rear Springs, and Increased RGAWR), Preferred Equipment Group 4SA (10-Way Power Driver Seat Adjuster with Lumbar, 10-Way Power Passenger Seat Adjuster with Lumbar, 120-Volt Bed Mounted Power Outlet, 120-Volt Interior Power Outlet, 170 Amp Alternator, 2 Charge/Data USB Ports, 2 Type-C Charge-Only Rear USB Ports, 6-Speaker Audio System Feature, Auto-Locking Rear Differential, Auxiliary External Transmission Oil Cooler, Chrome Header and Chrome Grille Insert Bars, Color-Keyed Carpeting Floor Covering, Deep-Tinted Glass, Driver Memory, Electric Rear-Window Defogger, Front 40/20/40 Split-Bench Seat, Front Frame-Mounted Black Recovery Hooks, Front Rain-Sensing Wipers, HD Rear Vision Camera, Heated Driver and Front Outboard Passenger Seating, Integrated Trailer Brake Controller, Keyless Open and Start, LED Cargo Area Lighting, Manual Tilt-Wheel and Telescoping Steering Column, OnStar Services Capable, Perimeter Lighting, Power Door Locks, Power Front Passenger Windows with Express Up/Down, Power Front Windows with Driver Express Up/Down, Power Rear Windows with Express Down, Push Button Start, Rear Wheelhouse Liners, Remote Vehicle Starter System, SiriusXM with 360L Trial Subscription, Steering Wheel Audio Controls, Theft Deterrent System (unauthorized Entry), Wheels: 18"" x 8.5"" 6-Spoke Machined Aluminum, and Wi-Fi Hotspot Capable), ProGrade Trailering System (Hitch View and in-Vehicle Trailering System App), Sierra Safety Plus Package (HD Surround Vision, Rear Cross Traffic Braking, Rear Pedestrian Detection, Safety Alert Seat, Trailer Camera Provisions, Trailer Side Blind Zone Alert, and Ultrasonic Front and Rear Park Assist), SLT Convenience Package (2 Charge/Data USB Ports Inside Center Console, Electronic Precision Shift, Floor-Mounted Center Console, Front Bucket Seats, Power Rake and Telescoping Steering Column, Premium Bose 7-Speaker Sound System, Ventilated Driver and Front Passenger Seats, and Wireless Charging), SLT Preferred Package (Adaptive Cruise Control, Heated 2nd Row Outboard Seats, Power Sliding Rear Window with Rear Defogger, and Universal Home Remote), SLT Premium Plus Package (Chrome Wheel to Wheel Assist Steps and Spray-on Pickup Bedliner with GMC Logo), Standard Suspension Package, Trailering Package (Hitch Guidance), 20"" Polished Aluminum Wheels, 220 Amp Alternator, 4-Wheel Disc Brakes, 6 Speakers, ABS brakes, Air Conditioning, All-Weather Floor Liner, Alloy wheels, AM/FM radio: SiriusXM with 360L, Apple CarPlay/Android Auto, Auto High-beam Headlights, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic Emergency Braking, Automatic temperature control, Brake assist, Must qualify for GMS Pricing (General Motors Employee Pricing), Price includes: $1750 - Buick & GMC Consumer Cash Program. Exp. 06/30/2026 $2500 - Buick GMC Bonus Cash. Exp. 06/30/2026 $3000 - GM Trade In Allowance Program. Exp. 06/30/2026