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

  • Lucerne Customer reviews

    Took my 2009 Buick Lucerne in for an oil change and tire rotation. Everyone was extremely helpful and courteous. Gateway has an excellent staff... they are attentive, respectful, and eager to answer


  • Terrain Customer reviews

    I took my wife's 2012 Terrain in because the engine icon came on. The technician said the oil was low (although the oil icon said there was 15% left)and he changed the oil and said all was good and th


    2012 GMC Terrain
  • Terrain Customer reviews

    When it was time to consider a new vehicle to replace our 2002 Envoy, our first and only thought was to visit Gateway Buick/GMC for a new vehicle. We started out looking at a used GMC Terrain (Gary i


    2014 GMC Terrain
  • I30 Customer reviews

    Infiniti i30


  • Envoy Customer reviews

    Very nice, but you still need to improve your waiting area?


  • Town & Country Customer reviews

    I bought the Chrysler Town and country minivan. Its got a problem with transmission, we have a appt. To get it fixed,hopefully its a easy fix.but transmissions normally aren't easy. We will find out h


  • Encore Customer reviews

    My 2013 Encore was taken to Gateway on 9/17 to comply with GMC Recall # 14340. It was received in by David Ouhl and I was directed to wait in the customer waiting room. In a very short period of tim


    2013 Buick Encore
  • Enclave Customer reviews

    Fair and balanced


    2014 Buick Enclave
  • Silverado 1500 Customer reviews

    Great people. Great work.


  • Terrain Customer reviews

    Excellent service dropped me off a loaner car better equipped than mine and let me keep it for a week. Love the conceige service. Tori was great!!!


    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