2018 JEEP WRANGLER JK Owners Manual

Windshield Washers
To use the washer, pull the lever toward you and hold
while spray is desired. If the lever is pulled while in the
delay range, the wiper will start and continue to operate
for two or three wipe cycles after the lever is released.
Then, the intermittent interval previously selected will
resume.
If the lever is pulled while in the off position, the wipers
will operate for two or three wipe cycles. Then, the wipers
will turn off.