Get back on the road confidently with Intoxalock, the trusted Ignition Interlock Device (IID) provider of Madison-Heights, Michigan and the no. 1 interlock device brand in the U.S.. Located in the Madison Heights neighborhood at 30045 John R Road, we offer fast and affordable court-approved IID installation, calibration, and removal services. Our certified technicians ensure a smooth, stress-free experience while... Read More about Intoxalock Ignition Interlock