Ignition Interlock Devices that are properly installed and manufactured don’t damage the vehicle that their installed into. Installation of the ignition interlock device varies greatly between each vehicle, each vehicle requiring access to different areas of the vehicle and requirements to complete the install. However, all proper installation methods don’t leave permanent damage to the vehicle upon removal.

With that said it’s crucial you pick reputable business to install the device. There’s nothing wrong with asking about their experience and verifying that their capable of properly installing it on your vehicle. This comes with limitations though.

Since most ignition interlock device are installed because of a state mandate, certain aspects of all ignition interlock installations must remain hidden. This is to prevent device tampering and ensure all parties are setup for success. Which means you shouldn’t expect a detailed breakdown of how the device is being installed.