Recommended 7-Way Connector for a 2021 Jeep Grand Cherokee L w/out the Tow Package
Updated 06/07/2023 | Published 06/06/2023
Products Featured in This Question
Question:
2021 Jeep Grand Cherokee L, with no trailer towing harness. You advise the following: The accepted method for adding a 7-Way to a 2001 Jeep Grand Cherokee that didnt come with one is to first install a 4-Way using # 118369 and then use # ETBC7. I have included some links that show and explain the ETBC7 installation for you. My question: does the Jeeps computer system then need to be reprogrammed at the dealership to accommodate these changes?
asked by: John W
Expert Reply:
You will not have to reprogram your 2021 Jeep Grand Cherokee L's computer when you install the wiring harnesses necessary to add a 7-Way connector. One of those parts you listed does not fit the Jeep Grand Cherokee L just the standard Grand Cherokee. They have different connectors. I have listed the correct parts you will need below.
4-Way Wiring Harness - Curt T-Connector Vehicle Wiring Harness item # C27BR
7-Way Connector - Universal Installation Kit for Trailer Brake Controller item # ETBC7
To control a trailer's brakes you will also need a brake controller, I recommend the Redarc Tow-Pro Liberty Trailer Brake Controller item # RED24FR. This is a proportional brake controller that automatically adjusts your trailer's braking based on the deceleration of your Jeep. The Liberty has a unique installation method where the main unit is concealed behind your dash and the only part visible is the control knob.
You will need the Universal Wiring Harness for Redarc Tow-Pro Trailer Brake Controllers item # RED69FR to complete the installation, since your Jeep does not have the tow package.
Listed below are some other parts you will need to pull a trailer with your Grand Cherokee L:
Hitch - Curt Hitch item # C96NR
Ball Mount Kit - Curt Towing Starter Kit for 2" Hitches item # C45534
No Drill Mounting Bracket - No-Drill Mount for Electrical Mounting Bracket item # 18140
Product Page this Question was Asked From
Universal Installation Kit for Trailer Brake Controller - 7-Way RV and 4-Way Flat - 10 Gauge Wires
- Accessories and Parts
- Trailer Brake Controller
- Installation Kits
- etrailer
more information >
Featured Help Information
Instructions
Miscellaneous Media
Continue Researching
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Shop: Trailer Wiring
- Shop: Curt T-Connector Vehicle Wiring Harness with 4-Pole Flat Trailer Connector
- Shop: Brake Controller
- Shop: Redarc Tow-Pro Elite Brake Controller for Tekonsha Harness - Off-Road Mode - Proportional
- Shop: 7-Way RV Upgrade Kit for Trailer Brake Controller Installation - 12 Gauge Wires
- Shop: Redarc In-Vehicle BCDC Trailer Battery Charger - Single Input - DC to DC - 12V/24V - 12 Amp
- Shop: Curt Trailer Connector Adapter - 4-Way to 7-Way RV and 4-Way Flat
- Q&A: Troubleshooting Error Codes on 2022 Jeep Grand Cherokee L After Installing Curt T-Connector Wiring
- Q&A: Can One Power Wire Be Run for 4-Way and 7-Way Adapter on 2022 Jeep Grand Cherokee WL
- Q&A: My Vehicle has a 4-Pin Trailer Plug, but Trailer has 7-Pin Trailer Plug
- Article: Brake Controller Installation: Starting from Scratch
- Article: Wiring Trailer Lights with a 7-Way Plug (It's Easier Than You Think)
- Article: Trailer Wiring Diagrams
- Q&A: What is the Difference Between a 4-Way and 7-Way Trailer Connector
- Q&A: What is the Difference Between a Class II and a Class III Hitch?
- Article: How to Measure for Trailer Hitch Drop
- Article: Towing a Trailer? Let's Talk About Brake Controllers
- Article: How to Choose the Right Trailer Hitch Class
- Q&A: What is the Difference Between the Tekonsha Prodigy P2 and the P3 Brake Controllers
- Q&A: What Wiring and Brake Controller do I Need for My 2005 Ford F-150 with 4 Flat Wiring?