I called VLED to ask about the issue with other users Overlands not accepting the bulb or not working properly. Not sure why a Summit would have no issue with a bulb but the overland would. This is the response I received.
Unfortunately we don't have firsthand experience converting your year make model vehicle.
We do know that the fog lights work on the 2014 Jeeps; however yesterday we had a customer with a 2015 Jeep and the fog lights did not work on his vehicle.
The issue is in the way that the Fiat computer Canbus system operates.
The only way to make them work is to isolate the LED bulbs from the circuit.
Most likely we can do that with a relay harness and a pair of resistors.
Assuming your vehicles fog lights are an H11 part number:
Parts required (In addition to the H11 VX3 kit):
One each H11 relay harness: Search results for: 'H11_HARNESS'
Two each H11 resistor adapters: Search results for: 'H11_RES_ADAPT'
Two each (1 pair) for 3 Ohm load resistors: 3 OHM RESISTOR
Note that if you decide to order this kit: Please notify us right away after you place your order so that we can make sure we have all the correct components in the kit for you.
Also just an FYI that we have not actually tested this kit on your vehicle as of yet, so this may or may not work.
If you have any more questions please feel free to contact us and have a wonderful day.
High Performance LED Car Lighting, Light Bulbs, LED Headlights, Taillights, Turn Signals, and Brake Lights
Mon-Fri 9am-5pm PST"
2015 Overland V6
Mods: Gunvault, Rear Slush Mat, Tint, Valentine One, LED Fog lamps, Michelin Premier LTX
2007 & 2011 - Laredo
2014 - Limited