^Eligible brands are ACDelco Gold ($20 rebate/2,000 points per battery) and ACDelco Original Equipment ($15 rebate/1,500 points per cabin air filter, $15 rebate/1,500 points per engine air filter, and $30 rebate/3,000 points for three wiper blades). My Buick Rewards points used during service transactions do not qualify for earning additional points. Purchase and installation where applicable must be at a participating U.S. GM Dealer. Installation not required for wiper rebate. See mycertifiedservicerebates.com for details and rebate form, which must be submitted by 3/31/2025. Limit one rebate per VIN for battery and filters. Limit three rebates per VIN for wipers. Rebate will be issued as a Visa® Gift Card; allow 6 to 8 weeks for delivery of gift card. Offer ends 2/28/2025. *100 points can be redeemed to receive $1 in purchasing value with My Buick Rewards. Must be 18 years or older. Points earned and redeemed only at GM entities and My Buick Rewards dealers in the United States (excluding Puerto Rico, the U.S. Virgin Islands, and Guam). Visit buick.com/rewards/terms to view the My GM Rewards Program Terms and Conditions.

1. Length of contract limited. Some customers may not qualify. Not available with lease and some other offers. Savings based on Bankrate of 6.11%. Take new retail delivery by 3/3/25. 2. Only on the 5.3L V8 Engine. For trade assistance, you must show proof of ownership and trade in a 2011 model year or newer vehicle. Not available with lease and some other offers. Take new retail delivery by 3/3/25.

Pre-Owned Vehicles

Schedule Service

Current Offers

Buick
GMC

Certified Pre-Owned

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

View Inventory

Get Approved

Apply online using our quick credit application to get started.

Apply Now

Value Trade-In

Get an online quote from Mills Auto for your pre-owned vehicle.

Appraise My Vehicle

An exterior shot of a parked Buick GMC vehicle.

Welcome to Mills Auto

CAR SHOPPING MADE EASY

Here at Mills Auto, it is our mission to be the automotive home of drivers in the Baxter, MN area. We provide a vast selection of new and pre-owned vehicles, exceptional car care and guest service with a smile!

Speaking of new GMC, Buick models, you have your pick of our showroom. Our local dealership keeps a great stock of pre-owned cars, trucks, and SUVs in inventory. With competitive prices offered on every pre-owned model for sale on our lot, you won't find a reason to visit any other dealership in Baxter.

WANT TO TALK AUTO FINANCE?

We Make It Easy

When you decide you are ready to get into a great GMC, Buick, we are here for you (or as far away as you want). Purchase online with our intuitive online tools, or let us do all the paper work for you. When you come to get the keys, we can have you out the door in as little as 15 minutes, but are glad to go through every detail of your car with you for as long as you like. Its all up to you.

WE KEEP YOU GOING

Mills Auto is also by your side whenever you need any car service and repair work done in Baxter. What's more, our auto parts team would be happy to get you whatever you need to keep your GMC, Buick vehicle on the road for many miles to come.

Ask A Question