Zimbrick Buick GMC Eastside is here to help you find the perfect new Buick, GMC or used vehicle, including GM Certified Pre-Owned vehicles. Our in-house finance department can help you finance or lease your vehicle. We work with multiple lenders so we can find the loan or lease that matches your credit situation. Zimbrick Buick GMC Eastside offers comprehensive parts and service departments. Our service department has factory trained technicians and uses manufacturer authorized parts to keep your Buick, GMC, or Pontiac in top condition. Buick GMC Eastside is an authorized service provider for Pontiac, but we also service most makes and models. Zimbrick Buick GMC Eastside is a part of the Zimbrick Automotive Group. Zimbrick is a local, family owned business and has been serving Madison since 1965.