Jeep Wrangler JK 2018 Owner's Manual page 159

13. Insert the front retainer of the window into the door
channel, making sure the retainer is fully seated and
properly positioned on the door frame. Failure to do so
can result in wind and water leaks or damage to the
window.
Step Thirteen
GETTING TO KNOW YOUR VEHICLE 157
Retainer Insertion
1 — Incorrect Insertion
2 — Correct Insertion
3