Join Date: Jun 2017
Location: Lyndon, Vermont
Use the "search" function and you will find my posts describing my fog light installation on my 2018 LT diesel. I don't believe there is any complete kit avaiable for these vehicles dealer installed or complete for owner install. I bought the same, (Premier), fog light assemblies that you did and installed them myself, making up my own harness with required relays, fuses and switch. No need to flash ECM and they work automatically with low beams, (w/switch on), and turn off when high beams are used.
FYI, you will find that the directional signal bulb is double filament and those in your vehicle are single filiment. One filiment is not used and may have a future use but the plug for your stock signal bulb will not plug onto the double filiment bulb and the single filiment bulb will not index into your "new" fixtures. (I was able to remove one of the plastic index points on the double filiment bulb and stock plug slid right on.
As you might see, this install isn't for the faint of heart but I totally enjoy this kind of project and the results have been 100% reliable.
Last edited by HCO41; 02-04-2019 at 07:17 PM.