When installing an aftermarket HID kit, you will encounter problems on some vehicles with computer-managed electronics due to the difference in power used between standard halogen bulbs and xenon bulbs. To save time and get your kit installed correctly the first time, you want to make sure you have any necessary accessories when you first order your kit, so you can avoid flickering, error messages and incorrectly operating lights.

To find out if your vehicle needs a canceler cable, follow these guidelines.

Does your vehicle notify you when a bulb is out?
Your vehicle has a CAN (Controlled Area Network) and will require a Warning Canceler Harness and a relay harness. Some vehicles, including Mercedes, Audi, BMW and Chrysler will also generate a CANBUS error message and require a CANBUS Warning Canceler Cable instead ( a CANBUS canceler does not require a relay harness).

Do you have an Acura, Audi, BMW, Chevrolet, Chrysler, Dodge, Jeep, Mercedes-Benz, Volvo or Volkswagen?
Your vehicle has a CAN (Controlled Area Network) and will require a Warning Canceler Harness and a relay harness. Some vehicles, including Mercedes, Audi, BMW and Chrysler will also generate a CANBUS error message and require a CANBUS Warning Canceler Cable instead ( a CANBUS canceler does not require a relay harness).

Is your vehicle model year 2006 or after?
Many vehicles in the United States sold after 2006 and most vehicles sold after 2008 have a CAN systems and you may encounter problems with your HID light installation. In these model years, a Warning Canceler and Relay Harness is recommended. However, we recommend researching your specific vehicle to be sure.

Does your vehicle have Daytime Running Lights
A Warning Canceler and Relay Harness is highly recommended if your vehicle has daylight running lights (DRL). In some vehicles you can also disable DRL through the on-board computer.

Your vehicle requires one set (two harnesses) of either a CANBUS Warning Canceler Cable or Warning Canceler Harness with a Relay Harness.