New and used 2026 GMC Sierra 1500 Elevation trucks for sale near Oconomowoc, WI

I went in for an oil change and came out with a new vehicle. The sales staff are amazing. Friendly, accomodating and efficient. The manager in the service department pays attention to the details. He has been very friendly and accomidating.

Easy purchase experience, would recommend to anyone looking for a new car. Everyone there was friendly and made the whole process as smooth as possible

Everyone was very polite and friendly Tim was very helpful and and courteous he went above and beyond to get my car repaired and can?t wait to come back in for normal service

A little expensive, but comfortable, quiet, smooth ride. Great performance out of the 6.2L and better than expected fuel economy in the low 20s. Outstanding interior and good looking exterior, especially in the Downpour Metallic color. I don’t have 700 miles on it yet and have owned it for 3 weeks. Therefore, I can’t pass judgement yet on the reliability, but so far I am very satisfied. This replaced an 8 year old Ford F150 that served me quite well with only a couple of issues in the 100,000 plus miles.

The employees were professional and friendly. They took their time to understand our needs and preferences to help us identify the best vehicles for us. They never pressured us or rushed us to make a purchase.

It was such a good truck honstly the greatest thing I have ever drove in my entire life I am so happy that I have been blessed with this being my first ever car

It was all handled very well. The man who took my order handled it very professionally. The service was completed in a timely fashion and he explained all that had been done and may need to be done in the future. I appreciated it very much.

Nick our salesman made the process smooth, easy and enjoyable by being professional, knowledgeable and caring about my wife and I. Would recommend to all family and friends

They gave me some cookies and were very nice. And the car was super cool.

Given the snowy weather the day we bought the vehicle, the Sales and Finance folks were great! I'll recommend this company to anyone. Thanks for everything.

Great experience from beginning to end!! Extremely knowledgeable great customer service actually the best customer service I've ever experienced would definitely buy another car from them and recommend them to friends and family.

We have used this Cadillac dealership to service our Cadillacs for years. This time, we dropped the vehicle off to be serviced the next day . . . however, later that afternoon the phone rang and our car was ready to be picked up - a day early! What impresses me about this dealership is . . . the friendliness of their staff, the cleanliness of their facilities the quality of their repairs - all just top notch!

No pressure car buying experience with Chad Braeger. He answered all our questions that we had. When I went back a week later to pick up the vehicle from having accessories installed, Chad met me at the door and answered any follow up questions I had with the vehicle.

Chad Breager & Patti Galligan went above and beyond my expectations! 2 of the most helpful people I have ever met ! I definitely will be back ! Eddie

Had a awesome experience with Chad Braeger when purchasing my Jeep Wrangler. Everyone was helpful and willing to answer any questions or concerns I had. Thank u, for making me feel comfortable thru out my buying experience. Lisa

Lucas was excellent. Very efficient and has us in and out in 90 minutes. Great price on the vehicle and top dollar for my trade. Highly recommend.

I purchased a used vehicle from Mike Juneau's Brookfield Buick GMC last year, and a few months later discovered a mechanical issue that needed attention. The problem was something that really should have been noted or recognized during their pre-sale inspection and preparation. I reached out to the dealership, explained the situation, and provided the relevant details. The team was incredibly responsive, professional, and apologetic from the very first interaction. They reviewed everything quickly, took full responsibility, and agreed to cover the entire cost of the repair at the shop of my choice, no questions asked and no hassle. In today's world, it's refreshing to see a dealership step up like this, especially for a used car. Their accountability and willingness to make things right completely restored my confidence in them. If you're in the market for a Buick, GMC, or just want a dealership that treats customers fairly and with integrity, I highly recommend Mike Juneau's Brookfield Buick GMC. Fantastic experience, thank you to the entire team!

The service I received was beyond exceptional! Cody in sales took much time to explain all features my suv held. He thoroughly answered all of my questions and made sure all of my expectations were met. He took the time to interact in a fun and relaxing way with my nephew as we waited for financing. Patty in financing was beyond incredible. She went above and beyond to be sure my budget was met and was very understandable and patient! I could have not asked for a better and stress free experience!!

After having an oil and filter change, we noticed a swishing sound. My husband pulled the air cleaner and discovered that some 'tabs' were not place properly. He fixed the problem and the swishing sound diminished. Not a big deal, but it would be nice if it wasn't there.

Great!! Did everything they could to make it a pleasurable car buying experience! Great job to the team at Boucher BGMC

I was very happy with my entire experience at this dealership ship. The entire staff from the sales manager, salesman, service manager and master mechanic were all very friendly respectful and professional. I would highly recommend this dealership to anyone looking to purchase a vehicle.