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New Arrivals

  • 2020 GMC Sierra 2500HD Denali Truck Crew Cab

    2020 GMC Sierra 2500HD Denali

    • $75,991

    Quick Specs

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  • 2021 GMC Yukon XL Denali SUV

    2021 GMC Yukon XL Denali

    • $85,745

    Quick Specs

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  • 2020 GMC Terrain SLT SUV

    2020 GMC Terrain SLT

    • $28,492

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  • 2020 GMC Terrain SLE SUV

    2020 GMC Terrain SLE

    • $23,726

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  • 2020 GMC Sierra 3500HD Denali Truck Crew Cab

    2020 GMC Sierra 3500HD Denali

    • $73,251

    Quick Specs

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If It Doesn't Say Gary Lang On The Back, You Probably Paid Too Much!

Stress-Free Car-Shopping

Gary Lang Buick GMC is a new and used car dealership on State Route 31 in McHenry servicing the communities of Crystal Lake, Fox Lake, Antioch, Round Lake, Johnsburg, Woodstock, Libertyville, Elgin, and Schaumburg. We offer a full line up of Buick and GMC new car, truck, and SUV models including:

A large variety of Certified Pre-Owned vehicles and Used vehicles also sit on our 23 acre lot. With over 2,000 vehicles at our dealership we are sure to have the right car, at the right price, right now with service you can depend on. Visit our GMC-Buick dealership near Crystal Lake, IL today!

We've Got You Covered

Our experienced sales staff is eager to share their knowledge and enthusiasm with you. We encourage you to browse our new and used car inventory, investigate your financing options, GMC-Buick lease deals, and schedule a test drive online. You can also request more information about a vehicle using our online form.

If you don't see a particular vehicle, click on Car Finder and complete the form. We will do our best to help locate your vehicle of choice and notify you know when a car matching your needs arrives at our dealership.

Our car financing professionals are on site and ready to help you get into the right car with the loan to meet your needs. With over 100 years of combined finance experience and over 50 lenders we will find you an auto loan no matter what your credit challenges have been in the past. We work with all credit types and have a dedicated challenged credit team. Click on Credit Application to get started. 

We Keep You Going

Servicing your vehicle is a breeze when you leave it to our certified technicians. With 55 service bays and a full team of technician, we are able to get your work done in a timely manner. Our service waiting area is complete with comfortable chairs, televisions, phone charging stations, WiFi, water, coffee, doughnuts, and dog treats if you bring along your furry companion. If you don't have the time to wait for your vehicle, we offer complimentary shuttles and loaner vehicles for your convenience. Schedule your appointment today.

Get in Touch

  • Contact Our Sales Department: 815-345-4877
  • Monday9:00AM - 9:00PM
  • Tuesday9:00AM - 9:00PM
  • Wednesday9:00AM - 9:00PM
  • Thursday9:00AM - 9:00PM
  • Friday9:00AM - 9:00PM
  • Saturday9:00AM - 7:00PM
  • SundayClosed
  1. Gary Lang Buick GMC

    1111 State Rte 31, Building 1
    McHenry, IL 60050

    • Sales: 815-345-4877
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