How to Activate Trailer Lights on Jeep Grand Cherokee

To activate trailer lights on a Jeep Grand Cherokee, plug in the trailer’s wiring harness to the vehicle’s socket. Next, turn on the vehicle’s headlights or use the interior lighting switch.

Trailering with the Jeep Grand Cherokee requires a seamless connection between the vehicle and your trailer’s lights for safety and legal compliance. This integration ensures drivers behind you are aware of your intentions, be it braking, turning, or driving in low visibility conditions.

Ensuring your trailer lights are operational is not just a matter of safety; it’s also a legal requirement in many areas. The process for activating the trailer lights typically involves a direct plug-in system, where the wiring harness from your trailer connects to a dedicated socket on your Jeep. Some newer models may have more advanced settings within the vehicle’s infotainment system, allowing for further customization or troubleshooting of your trailer lighting. The activation is usually straightforward, designed to encourage proper safety measures without requiring extensive technical knowledge.

The Importance Of Trailer Lights

Ensuring the proper function of trailer lights on a Jeep Grand Cherokee is critical for both safety and legal compliance. Operating a vehicle with a trailer that lacks proper lighting can lead to hazardous conditions on the road. Maintaining visibility, signaling intentions to other drivers, and obeying traffic laws are all paramount.

It’s vital to understand that each state has specific requirements for towing trailers, which usually include mandatory trailer lights. Following these regulations helps prevent fines and ensures that you are upholding the law. To check detailed legal obligations, one should refer to their local Department of Motor Vehicles (DMV) or equivalent authority to obtain the most up-to-date information.

Taking the necessary steps to activate and maintain your trailer lights is not just a legal formality; it’s an integral part of responsible vehicle operation. Before hitting the road, conduct a safety check to confirm that all lights are functioning correctly. This proactive measure contributes to a safer driving environment for everyone.

Installing Trailer Hitch Wiring

Ensuring you have the correct wiring kit is essential for successful trailer light activation. Opt for a kit specifically designed for the Jeep Grand Cherokee to guarantee compatibility. It’s crucial to choose a kit that matches your vehicle’s model year and tail light specifications. Kits typically include a wiring harness, connectors, and a control module.

  • Locate the Jeep’s tail light wiring – Access is usually behind the tail light assembly.
  • Connect the wiring harness to the tail lights using the provided connectors. Ensure color-coded wires match correctly.
  • Mount the control module securely to prevent damage while driving.
  • Route the wires to the trailer hitch area, avoiding areas that may cause pinching or abrasion.

After installation, test the trailer lights to verify they work correctly. Connect the trailer’s wiring to the hitch, and ensure all lights correspond to the vehicle’s signals. Check brake lights, turn signals, and hazard lights for proper function. Address any issues before embarking on road travel to ensure safety.

Activating Trailer Lights On Jeep Grand Cherokee

Activating the trailer lights on your Jeep Grand Cherokee requires a few steps for proper connection. Firstly, locate the wiring harness at the rear of the vehicle. Ensure it is compatible with the trailer’s connector. A secure connection is paramount for reliable lighting.

Next, moving to vehicle settings, access the on-board computer system through the infotainment centre. Navigate to the ‘Settings’ menu where you’ll find options pertaining to towing. Select ‘Trailer Tow‘ and activate the lighting feature. This tells your Jeep that it is towing and to power the trailer lights.

After these steps, comes the testing phase. Connect the trailer and start your Jeep. Check all lights – brake, turn signal, and running lights for functionality. If issues arise, double-check connections for any loose wires. Dealerships or qualified mechanics offer troubleshooting if the problem persists.

How to Activate Trailer Lights on Jeep Grand Cherokee


Frequently Asked Questions Of How To Activate Trailer Lights On Jeep Grand Cherokee

Why Are My Trailer Lights Not Working?

Trailer lights may not work due to a blown fuse, bad wiring, faulty bulbs, a poor ground connection, or a problem with the tow vehicle’s electrical system. Check these areas to diagnose the issue.

Why Are The Trailer Lights Not Working On My 2012 Jeep Grand Cherokee?

Trailer lights on a 2012 Jeep Grand Cherokee may not work due to blown fuses, faulty wiring, or a bad connection. Check the vehicle’s fuse box and trailer wiring harness connections for issues.

How Do Trailer Brake Lights Work?

Trailer brake lights activate through a connection to the tow vehicle. Once the driver presses the brake pedal, the electrical signal is sent to the trailer, illuminating its brake lights. This alerts drivers behind that the vehicle is slowing down or stopping.

How Do You Test Trailer Lights On A Truck?

To test trailer lights on a truck, connect the trailer’s wiring to the truck. Turn on the ignition and activate the lights using the truck’s switches. Verify that the brake lights, turn signals, and tail lights function correctly. Check for any bulbs that may need replacing.


Ensuring your Jeep Grand Cherokee’s trailer lights are operational is crucial for safety. By following the outlined steps, you can easily activate them. This boosts visibility, reassuring both the driver and others on the road. Don’t forget regular checks to maintain proper function.

Safe travels on your next towing adventure!

James Frank

This is James Frank. I am a Home Expert and also Part-Time blogger. I am a home maintenance adviser and also a Part-time blogger to help people about there home maintenance, I am loving to write about home maintenance for new homeowners. and I am in this place for about 10 years. I would like to share my opinion, IDEA, Tips and much more information with My friends, family, and my Blog visitors.

Recent Posts

Share via
Copy link