Need an ignition interlock device near La Grange? Intoxalock is available at Champion Chevrolet Buick GMC, a certified Intoxalock ignition interlock installer. We can install your breathalyzer in cars, trucks, vans and other vehicles.Champion Chevrolet Buick GM is one of our local Intoxalock certified locations with convenient hours, prices and services near you. As a certified Intoxalock provider, you can count on reliable, quality service. They offer quick and easy ignition interlock services, installation and deinstallation for your convenience. Call to schedule an appointment to get your device installed, hassle free. Servicing your vehicle can be stressful, but with Champion Chevrolet Buick GMC it won't be. Their experienced technicians are some of the best in the business. They offer competitive pricing for parts and services.