Welcome To McMahon Pontiac GMC Dealer. Your premier St. Louis, Hazelwood, Ellisville GMC and Pontiac dealer.
Pontiac & GMC Accessories For Sale
Pontiac & GMC Service Specials
Schedule a service appointment for your vehicle today! McMahon Pontiac GMC is your St Louis Pontiac GMC dealer!
Whether you're searching for a new or used vehicle, researching financing options, or looking for a quick quote on a car, truck, or SUV, our friendly, we can help.

McMahon Pontiac GMC is conveniently located in St Louis, also serving Ellisville & Hazelwood

.

We offer specials and incentives for online customers, so check us out if you're looking for a

St. Louis GMC, St. Louis Pontiac

,

Ellisville GMC, Ellisville Pontiac

,

Hazelwood GMC or Hazelwood Pontiac

, all from the comfort of your own home. In addition, our service and parts departments are standing by to assist you with every aspect of vehicle maintenance.
Introducing the GM 100,000 Mile Warranty! Now standard on every 2007 GM car and light-duty truck, a 100,000 mile/5year transferable powertrain warranty with no deductible. Click the image above for more info.
OnStar at McMahon Pontiac GMC
Our
St Louis Pontiac GMC dealership, serving customers throughout Ellisville & Hazelwood
is dedicated to providing our customers with reliable, affordable pre-owned vehicles. All used vehicles undergo a strict safety and service inspection.  We offer the best new and used Pontiac and GMC selection in St. Louis and beyond.

Please view our business hours and directions to get specific driving instructions to our St Louis Pontiac GMC dealership. If you have any questions regarding our site information, just call or email us.

McMahon Pontiac GMC
3295 S Kingshighway Blvd
Saint Louis, MO 63139
Click Here To View Our Certified Used Vehicle Inventory. McMahon Pontiac GMC, your St Louis dealer.
Our Mission:
To serve our valued customers with the highest level of integrity and satisfaction.  We thrive on challenges that drive our organization to greater success.  Passionate to achieve and confident in our ability to succeed, a true team, we work together to please our customers. We maintain our workplace built on values, trust and goodwill!

McMahon Pontiac GMC is your St. Louis, Ellisville & Hazelwood dealer!  We have the new and used GMC Sierra 1500, Sierra 2500HD, Yukon, Yukon Denali and  Yukon XL available in many trims.  We also have a great selection of the new and used Pontiac G3, G5, G6, G8 and Solstice. Check-out the Pontiac Vibe crossover with its great fuel efficiency! McMahon is your GMC dealer in St Louis with the New 2009 GMC Acadia, Canyon and Envoy. We take pride in our great inventory of new and used GMC and Pontiac cars, truck, and SUVs. We look forward to being your St. Louis, Hazelwood & Ellisville Pontiac and GMC dealer.

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McMahon Pontiac GMC
3295 S Kingshighway Blvd
Saint Louis, MO 63139
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Phone: (314) 450-7163
Email: Contact Us
Fax: (314) 832-3732