Welcome to J.C. Billion GMC Buick
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1. MUST BE A CURRENT OWNER/LESSEE OF A 2007 MODEL YEAR OR NEWER NON-GM VEHICLE FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease, special finance and some other offers. Take new retail delivery by 3/1/21. Dealership availability and hours of operation are subject to change in accordance with all federal and local laws and restrictions.
2020 Buick Encore GX offer
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1. MUST BE A CURRENT OWNER/LESSEE OF A 2007 MODEL YEAR OR NEWER NON-GM VEHICLE FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease, special finance and some other offers. Take new retail delivery by 3/1/21. Dealership availability and hours of operation are subject to change in accordance with all federal and local laws and restrictions.
2021 GMC Sierra 1500 offer
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1. Excludes 1SV model. MUST BE A CURRENT OWNER/LESSEE OF A 2007 MODEL YEAR OR NEWER NON-GM VEHICLE FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease, special finance and some other offers. Take new retail delivery by 3/1/21. Dealership availability and hours of operation are subject to change in accordance with all federal and local laws and restrictions.
$3,500 Purchase Allowance on most models for current eligible non-GM owners.
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1. Excludes SL models. MUST BE A CURRENT OWNER/LESSEE OF A 2007 MODEL YEAR OR NEWER NON-GM VEHICLE FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease, special finance and some other offers. Take new retail delivery by 3/1/21. Dealership availability and hours of operation are subject to change in accordance with all federal and local laws and restrictions.
$5,000 Purchase Allowance on most models for current eligible non-GM owners/lessees.
VIEW DISCLAIMER HIDE DISCLAIMER
1. Excludes 1SV model. MUST BE A CURRENT OWNER/LESSEE OF A 2007 MODEL YEAR OR NEWER NON-GM VEHICLE FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease, special finance and some other offers. Take new retail delivery by 3/1/21. Dealership availability and hours of operation are subject to change in accordance with all federal and local laws and restrictions.
$7,500 Purchase Allowance on most models for current eligible non-GM owners.
VIEW DISCLAIMER HIDE DISCLAIMER
1. Excludes SL models. MUST BE A CURRENT OWNER/LESSEE OF A 2007 MODEL YEAR OR NEWER NON-GM VEHICLE FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease, special finance and some other offers. Take new retail delivery by 3/1/21. Dealership availability and hours of operation are subject to change in accordance with all federal and local laws and restrictions.
$5,250 Purchase Allowance on most models for current eligible non-GM owners/lessees.
VIEW DISCLAIMER HIDE DISCLAIMER
1. MUST BE A CURRENT OWNER/LESSEE OF A 2007 MODEL YEAR OR NEWER NON-GM VEHICLE FOR AT LEAST 30 DAYS PRIOR TO NEW VEHICLE SALE. Not available with lease, special finance and some other offers. Take new retail delivery by 3/1/21. Dealership availability and hours of operation are subject to change in accordance with all federal and local laws and restrictions.
$6,750 Purchase Allowance for current eligible non-GM owners.

Certified Pre-Owned

Get a pre-owned Buick/GMC vehicle that's inspected and warrantied.

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Get an online quote from J.C. Billion GMC Buick for your pre-owned vehicle.

Welcome to J.C. Billion GMC Buick

Thank you for visiting us. We have been a Bozeman auto dealer since 1978 serving Butte and Helena, MT GMC and Buick customers. We believe in service the old-fashioned way and you will still be greeted at the door with a handshake and a smile. Our conveniently located showroom proudly serves Butte, Billings, and Helena, MT GMC and Buick car, truck, and SUV shoppers. Visit our contact us page and drop by today!

We are passionate about the vehicles we sell and the customers we serve throughout Bozeman. Our loyal customers come back repeatedly because they know they can trust us with their business. See for yourself what our customers say about us.

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Our Reviews

Cars Feb 23, 2021

I waited for a L O N G time for them to work on my car (regular oil / lube) that could’ve been done more quickly by a “Speedy Lube” type facility.

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Google Feb 1, 2021

Excellent service and great customer care!

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Google Jan 13, 2021

Heather did great job getting my vehicle fixed same day!

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Google Jan 13, 2021

The service was exceptional and would recommend them to all friends!!

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Google Dec 31, 2020

Highly recommend JC Billion for their outstanding service to the customer. They take the time to understand what the customer wants.

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Google Dec 17, 2020

excellent service

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DealerRater Dec 8, 2020

I dealt with Joe Billion in a business arrangement. He made a commitment to do a project and later went back on that commitment. We did not have a written contract but I took him at his word. I learned later that his word was no good.

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Google Dec 7, 2020

Everyone in the service department were AWESOME!! Doug Kevin Kassy Heather Ry !!!! You all came to my rescue after being towed twice and both times at stop lights at 5 in Bozeman!! You guys all rock and I appreciate your great service and putting up with my favorite cousin Billy!!

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Google Dec 7, 2020

Yes, they asked me to leave a review; and I’ll do it because I was very happy with the customer experience.I worked with Lyle Ciglar, Jeff Muler, Rob Crum, and Brandon Keim. I ordered a pickup in August and picked it up in November. I felt no pressure through the process and am very happy with the whole experience. There was a small issue we had to work through the day I picked up the vehicle and they handled it brilliantly.I hope they keep the small town mentality for the long-term...it matters.

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Google Dec 7, 2020

Top notch sales team.

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Google Dec 7, 2020

Very prompt and helpful and they keep customers updated .

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Google Nov 7, 2020

We bought a new 2020 Yukon Denali XL from JC Billion. In the past I’ve had some bad experiences with dealerships but JC Billion was awesome to work with and made the transaction very easy. Highly recommended.

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Google Nov 7, 2020

Great dealership. Excellent staff.

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Google Oct 7, 2020

We just purchased a 2020 2500 Ram and had the best experience dealing with the entire dealership. Randy was are salesmen and then today he had some accessories added to it and that department was amazing and very efficient. We highly recommend JC Billion.

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Google Oct 7, 2020

Bill Davis at Billion Auto made purchasing our new truck a breeze. We love our new truck and will be using it to haul horses statewide. Thank you Bill @ Billion!!!!!

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Google Oct 7, 2020

Vehicle broke down in Yellowstone Park, managed to limp it to JC Billion and they were able to get it diagnosed and fixed within an hour (faulty O2 sensor). Obviously I was a bit lucky they weren’t overly busy but still the team members there were extremely friendly and efficient. I really appreciate the awesome service after a horrible day.

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Google Aug 7, 2020

They provided quality service on my Buick

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Google Aug 7, 2020

Marty was on the spot with assisting me with duplucating an entry key for my 2013 GMC Terrain. Not a small task I assure you . My husband Thanks you Marty and J.C. Billion so he doesn't have to bring our spare when I Lock mine in the Car

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Google Aug 7, 2020

I just purchased my truck with Annie at Billion. It was the smoothest transaction I've had and I would absolutely recommend her/Billion to anyone looking for a vehicle. Quick, smooth and easy and everyone from the manager to the finance department was a pleasure to work with. This is my third purchase from a dealership and the best experience by far.

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Google Aug 7, 2020

Kassy greeted us promptly at the door. Knew who we were from our appointment I made on line. She informed me of 3 recalls for my vehicle and offered to take care of them along with the oil change and tire rotation I came in for. She offered to top off our Def fluid. All was handled promptly and professionally. Great experience.

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Google Jun 7, 2020

Very professional very kind easy to work with all in all a good experience

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Google Jun 7, 2020

Annie Bjerken is the person you want to see if you want to buy a Nissan. My wife and I couldn't have been more pleased with the service and knowledge she provided for us. She also has the support of her partner Sam, who both went out of their way to answer our technical questions. I highly recommend Annie, and if she's not available, then Sam for all your new Nissan needs. They are an incredible team!

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Google Apr 7, 2020

I highly recommend working with Randy in the sales department. He was excellent to work with and made the buying process 100% stress free.

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Google Mar 7, 2020

Bought a new 2016 GMC 1500 from these guys in 2016, they do service and a couple little recall issues. They have been great. The service department gal Kassie is super helpful!!

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Google Feb 7, 2020

So far experience has been great ! It has only been a few weeks.

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J.C. Billion GMC Buick 45.67612, -111.10505.