Next, lock the doors using the key fob, then unlock the doors. The next step is to open the driver's door, shut it, and start the car. The lights should go off. Figure 4. If your interior lights won't turn off with all doors shut, try the troubleshooting procedure above. Scenario 5 – Lights won't turn on at all Oct 18, 2017 · Steps of Disable Ford Daytime Running Lights: 1) Get a Ford IDS hardware device. 2) Install the Ford IDS software on the laptop. 3) Locate the OBD diagnostic socket in the car and plug the your Ford IDS hardware to OBD port. 4) Go to programmable parameters, select exterior lighting. Dear bchee-- You can't. Your 2002 Chevrolet Blazer has daytime running lights and the car is programmed to turn them on whenever the car is turned on. The only way to turn this feature off is to have a dealer hook it up to his computer and disable the daytime running lights. Good luck from Bovan. A number of products within our range include daytime running lights (DRLs), below is a diagram for customers interested in wiring them up via a relay, to allow them to turn off when the low beam headlights are turned on. In addition, any local auto electrician should be able to set this up for you if needed.