Sales: 888-672-2855 Service: 888-672-2856 Parts: 888-672-2855
820 McDonnell Blvd., St. Louis, MO 63042
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NEW Specials

USED Specials

Customer reviews

4.8 / 5

Dealer Rating

Our average rating from our customers is

4.8 / 5

Read Reviews

  • Sonic Customer reviews

    this was my fourth time being there and every time i get dale ley he is so kind and funny love the service that why i keep coming back


  • Equinox Customer reviews

    I purchased a Chevy Exquinox from Craig Whitfield. He was the most amazing car salesman I've ever worked with. He was patient, knowledge, and efficient. I will definitely recommend him to all my famil


  • Terrain Customer reviews

    Rob ********* was our sales person and I must say he made the whole purchase process so very easy. His knowledge and attention to every detail was extremely impressive. I had to contact him post sale


    2014 GMC Terrain
  • Acadia Customer reviews

    I love bringing my car into this dealership very friendly service


    2013 GMC Acadia
  • LaCrosse Customer reviews

    I purchased a 2014 LaCrosse from Michael Jackson and received excellent service. I also commend Jim Welch on the excellent service he provided


    2014 Buick LaCrosse
  • Traverse Customer reviews

    Great staff, quick and friendly


  • Yukon XL Customer reviews

    This was the 3rd car I have purchased from Gateway. In addition to that I have referred 5 customers. The buying/leasing experience at Gateway is by far the best. There's not a lot of haggling and th


    2015 GMC Yukon XL
  • Terrain Customer reviews

    Every visit for car maintenanace is pleasant. Everybody is always kind and helpful. Christy assisted me in getting a loaner so that I could complete my errands. Thank you! One of the guys in the servi


    2013 GMC Terrain
  • Sierra 2500HD Customer reviews

    The staff at Gateway was excellent when I bought my 2015 GMC Sierra 2500HD. The saleman, Ryan, was excellent in how he handled the our interaction and the sale. He was polite, courteous and willing to


    2015 GMC Sierra 2500HD
  • Terrain Customer reviews

    I experience was great. Everyone was excellent.


    2014 GMC Terrain

Map and Directions

Gateway Buick GMC serving Hazelwood and St. Louis area

Over 40 Years of Experience

Gateway Buick GMC is a leading dealer in the greater St. Louis area with the best selection of new and used vehicles.  Gateway has a rich history in the area, take a moment to learn all about the history of Gateway and our community involvement, carrying on the traditions from 1971.  As your regional St Louis GMC and Buick dealer, our 16 acres of new and used fuel efficient cars, crossovers and trucks are enough to accommodate all Buick and GMC shoppers. Hazelwood Buick and GMC customers plan your visit to our dealership by checking out our hours and directions page, or contact us directly for more information on anything seen on this site. We know that you have a choice when you select a car, we only ask for the opportunity to earn your business… at Gateway Buick GMC.


Gateway Buick GMC - St Louis Auto Service and Repair

At Gateway Buick GMC, your experience purchasing a new or pre-owned Buick or GMC doesn’t just end once you leave our facility. Gateway provides additional services like a complete body collision and customer service shop, certified Buick and GMC accessories and parts, as well as a complete Buick service and GMC maintenance center. From Belleville to St Louis, we invite all Buick GMC owners to check out our service specials and see the difference.   From tire maintenance to changing or topping off your Buick Regal's or GMC Terrain's vital fluids, our GM technicians keep your vehicle running and looking good. Feel free to schedule a service appointment or order your GMC parts online.

Gateway Buick GMC also provides Shuttle, Rental and Concierge Services

Gateway does it the RIGHT Way with service. We have a fleet of 25 new Buick and GMC free loaner cars. Simply drive in, and we will get you on your way with a free new loaner while we service your car. We will also come to you.  Just call and ask for the Concierge Department, and we will come pick-up your car and provide you a loaner as you attend to your busy schedule.   For business in the greater St Louis area, we also offer the Corporate Concierge service, where we come pick up your car at work for for maintenance and service.

Come visit Gateway Buick GMC near Belleville Today

Don't spend all of your time searching for Buick cars in St. Louis when Gateway Buick GMC is here for all of your automotive needs! Whether you're from St. Peters, Belleville or beyond, one trip to Gateway and you'll see why everyone purchases their new Buick or pre-owned GMC with us!

Gateway Buick GMC in Hazelwood, MO
Serving as your Florissant, Chesterfield MO, St. Peters, Belleville IL and St Louis Buick and GMC dealer.


Concierge Program