Welcome to DeMarois Buick GMC
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1. Length of contract limited. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 10/2/23. 2. Only on the 5.3L EcoTec3 V8 Engine. For trade assistance, you must show proof of ownership and trade in a 2009 model year or newer vehicle. Not available with lease and some other offers. Take new retail delivery by 10/2/23. 3. Deferred monthly payments for 121 days. Excludes residents of PA and ME. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 10/2/23. Some features shown may have limited, late or no availability. See dealer for feature availability. Available accessories shown.
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1. Length of contract limited. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 10/2/23. 2. MUST BE A CURRENT OWNER OF A 2009 MODEL YEAR OR NEWER NON-GM VEHICLE OR A CURRENT LESSEE OF A 2018 MODEL YEAR OR NEWER NON-GM VEHICLE FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease and some other offers. Take new retail delivery by 10/2/23. 3. Deferred monthly payments for 90 days. Excludes residents of PA. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 10/2/23. Some features shown may have limited, late or no availability. See dealer for feature availability.
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1. Length of contract limited. Some customers may not qualify. Not available with lease and some other offers. Take new retail delivery by 10/2/23. 2. MUST BE A CURRENT OWNER OF A 2009 MODEL YEAR OR NEWER BUICK OR GMC VEHICLE OR A CURRENT LESSEE OF A 2018 MODEL YEAR OR NEWER BUICK OR GMC VEHICLE THROUGH GM FINANCIAL FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease and some other offers. Take new retail delivery by 10/2/23. 3. Deferred monthly payments for 121 days. Excludes residents of PA and ME. Must finance with GM Financial. Some customers may not qualify. Down payment required at signing, if applicable. Finance charges accrue from date of financing. Not available with lease and some other offers. Take new retail delivery by 10/2/23.
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*Ad, written estimate, or internet quote for identical tire(s) from a competing tire retailer/installer located within 100 miles of the dealer required during guarantee period for price match. Tire match price must be determined prior to applying a tire manufacturer rebate, if any. At participating dealers only. Offer ends 12/31/2023.
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Welcome to DeMarois Buick GMC

A Western Montana Buick, GMC Dealership

DeMarois Buick GMC Truck in Missoula is your hometown car dealership. Our reputation is built on customer trust, and our dedication to making sure your experience with us is not only comfortable but satisfying as well. Located along I-90 at 3115 W Broadway, our dealership is an excellent place to check new and used vehicle inventory. So what are you waiting for? Western Montana Buick, GMC customers should not hesitate to email us or call us at (406) 303-4676.

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Sales Hours:
  • Mon - Fri8:00 AM - 6:00 PM
  • Sat8:00 AM - 5:00 PM
  • SunClosed
Service Hours:
  • Mon - Fri8:00 AM - 5:00 PM
  • Sat - SunClosed
Parts Hours:
  • Mon - Fri8:00 AM - 5:00 PM
  • Sat - SunClosed

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3115 W Broadway, Missoula, MT, 59808

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DeMarois Buick GMC 46.8939, -114.0315.