Tow Bar Braking and Lighting Kit Recommendation for 2009 Jeep Liberty

Published 10/13/2017

Products Featured in This Question

Demco Stay-IN-Play Duo Flat Tow Brake System for RVs w/ Hydraulic Brakes - Proportional

(755)

$1175.00

Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 7-Way to 6-Way Coiled Adapter Cord

(3187)

$175.28

Roadmaster 4-Diode Universal Wiring Kit for Towed Vehicles - 4-Way Flat Connectors

(3187)

$100.94

Roadmaster Stop Light Switch Kit - Jeep Liberty

(623)

$54.61

Roadmaster Battery Disconnect for Towed Vehicle w/ Flat Tow Brake System - Gas Only

(372)

$226.05

Question:

Need some expert help!! Installing the above on a 2009 jeep liberty. Have conflicting instructions on how to wire the led monitor to the brake switch. Have two wires red and black coming from the led monitor and two wires both black coming from the switch. I know one of the black wires on the switch go to a positive constant 12v source this case the battery. Where does the other switch wire go and where does the two led monitor wires go? Thanks

asked by: Ronnie M

Helpful Expert Reply:

Your RV may have separate taillight circuits, but if it has trailer wiring installed on it those circuits will be combined at the trailer connector as that is the standard trailer wiring configuration.

Also, your Liberty may have separate taillights as well but you can still wire that setup to a 4 diode kit like the # RM-154 since this will allow your blinker/stoplights be be carried on the same bulb. I like the part # RM-15267 as it comes with some extra wiring and adapters to make the job easier.

The SMI DUO # SM99251 is our installers favorite braking system because of how easy it is to install (relatively) and how well it works. It would be the kit I would recommend as well.

expert reply by: Jameson C

Ronnie M.

10/3/2017

2009 Jeep Liberty. brake lights work with ignition off. Manual says to disconnect battery when towing Have installed the Tail light kit RM-155-2 Have installed the base plate BX1976 Have not installed SM99251 braking system Need to know if there is anything else I am going to have to buy to make the brakes work right like: battery disconnect brake light switch anything else If so what PN's

Jameson C.

10/3/2017

You'll also need the stoplight switch kit part # RM-751430 since your battery will be disconnected when you are towing and the lights won't be activating. To make disconnecting the battery easy and painless you'd also want the part # RM-766 and you'd be set.

Ronnie M.

10/13/2017

Jameson C.

10/13/2017

The easiest way for me to show you how the part # RM-751430 will install on your 2009 Jeep Liberty is to have you check out the install video we did that shows this installed on a 2008 Liberty that will be the exact same. I attached the link below for you to check out as well. It's long so you'll want to fast forward to the 17:35 portion of the video to see just the portion you need. The black wire does run to the battery's positive terminal and the other wire on the switch runs out to the stoplight switch circuit of the DUO. What this does is complete the power circuit when the brakes are applied which then tells the DUO the brakes are on.