Jeep Wrangler: Towing Requirements / Towing Requirements — Trailer Lights And Wiring
Whenever you pull a trailer, regardless of the
trailer size, stoplights and turn signals on the
trailer are required for motoring safety.
The Trailer Tow Package may include a four- and
seven-pin wiring harness. Use a factory
approved trailer harness and connector.
NOTE:
Do not cut or splice wiring into the vehicle’s
wiring harness.
The electrical connections are all complete to
the vehicle but you must mate the harness to a
trailer connector. Refer to the following
illustrations.
NOTE:
Disconnect trailer wiring connector from the
vehicle before launching a boat (or any other
device plugged into vehicle’s electrical
connect) into water.
Be sure to reconnect once clear from water
area.

Four-Pin Connector
- Ground
- Park
- Left Stop/Turn
- Right Stop/Turn

Seven-Pin Connector
- Battery
- Backup Lamps
- Right Stop/Turn
- Electric Brakes
- Ground
- Left Stop/Turn
- Running Lamps
Do not interconnect the hydraulic brake
system or vacuum system of your vehicle
with that of the trailer. This could cause inadequate
braking and possible personal injury...
Before setting out on a trip, practice turning,
stopping and backing the trailer in an area away
from heavy traffic.
If using a manual transmission vehicle for trailer
towing, all starts must be in FIRST gear to avoid
excessive clutch slippage...
Other information:
Refer to the maintenance plan for the required maintenance intervals.
WARNING!
You can be badly injured working on or around a motor vehicle. Do
only service work for which you have the knowledge and the right equipment.
If
you have any doubt about your ability to perform a service job, take your
vehicle to a competent mechanic...
This warning light will
illuminate, and
a chime will sound, to indicate low
engine oil pressure. If the light and
chime turn on while driving, safely
stop the vehicle and turn off the engine as soon
as possible. After the vehicle is safely stopped,
restart the engine and monitor the Oil Pressure
Warning Light...