Welcome to Richardson Buick GMC Cadillac

* MSRP. Tax, title, license, dealer fees and optional equipment extra. Dealer sets final price.
HUMMER EV IS AVAILABLE FROM A GMC EV DEALER.
Preproduction model shown throughout. Actual production model will vary. Available late 2024. 1. Estimated MSRP excludes tax, title, license, dealer fees. Dealer sets final price. Final pricing to be announced at a later date.
1. Not available with lease and some other offers, or if vehicle is eligible for IRA Clean Vehicle Federal Tax Credit. Offer terms subject to change. Must take new retail delivery by 1/2/2025. See dealer for details.
Group of 2023 GMC Terrain SUVs parked on beach

Inventory Search

Buick GMC logo with a Certified Pre Owned Text

Each Buick/GMC Certified Pre-Owned vehicle is thoroughly inspected and reconditioned and includes factory-backed limited warranties and roadside assistance.

A Buick car parked infront of a GMC truck.

Our Reviews

Welcome to Richardson Buick Cadillac GMC

Embark on a journey to discover your ideal vehicle within our expansive collection! Richardson Buick Cadillac GMC is committed to delivering an exceptional shopping experience for our valued Buick and GMC customers, whether you're from Waterloo, IA or Platteville, WI. If you're on the lookout for a new or used car, truck, or SUV in Dubuque, we warmly welcome you to pay us a visit. Browse through our glowing reviews, explore the latest features, and even schedule a test drive with one of our new vehicles. Be assured that each vehicle in our inventory undergoes rigorous quality checks before it is made available for sale. This is your chance to experience the road from behind the wheel - seize the opportunity and visit us today to take one for a spin!

Want to Talk Auto Finance?

When the time comes to set off in your cherished Buick, Cadillac, or GMC, we're fully prepared to assist you. You can effortlessly browse and shop using our user-friendly online tools, or if you prefer, allow us to take care of the paperwork on your behalf. Our primary objective is to ensure you get behind the wheel swiftly and seamlessly, with the option of being on your way in as little as 15 minutes if that's your preference. However, if you'd like to take your time, meticulously review every detail of your new vehicle, and make the choices at your own pace, we're here to support you every step of the way. The decision is always yours to make.

We Keep You Going!

At Richardson Buick-cadillac-gmc Truck in Dubuque, IA, we're always ready to lend a helping hand with any car service or repair needs. And our knowledgeable Auto Parts Team is eager to assist in finding the perfect parts to keep your Buick or GMC cruising down the road for many miles to come!

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5400 Westside Dr
Dubuque, IA 52003

Sales Open Today: 9 AM - 8 PM

Service Open Today: 7 AM - 6 PM

Parts Open Today: 7 AM - 6 PM

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Richardson Buick-cadillac-gmc Truck 42.48117, -90.75509.