How to tell if your 2018 Wrangler is a JK or JL:
2018 JL Wrangler changes from the front and on the interior:
- JL Wranglers use a PUSH Button START instead of turning a key in the JK's.
- JL Wranglers ALL come with a backup camera from the factory.
- JL headlights encroach on the grille vents while the JK’s headlights do not.
- A 2018 JL will have front facing indicator lights on the fender flares.
____________________________________________________
Have a 2017-18 JK but unsure if you have the LED Package?
In 2017 Jeep introduced an upgraded LED lighting package which included factory LED Headlights and Fog lights. Not sure if you have this factory LED option? Check the diagram below for clarification.
2017-18 JK with or without Factory LED Package (Above)
____________________________________________________________
Have a JL but unsure if you have the LED Package?
The 2018+ Jeep Wrangler JL comes with option for a LED package which includes LED Headlights, Fog Lights, Daytime Running Lights, and Tail Lights. Not sure if you have this factory LED option? Check the diagram below for clarification. 
2018-19 JK with or without Factory LED Package (Above)