Troubleshooting Factory Tow Package Light Not Working On a 2015 Jeep Grand Cherokee

Question:

Does a 2015 grand Cherokee with factory tow package have to be flashed for turn signals and parking lights

asked by: John A

Expert Reply:

On a 2015 Jeep Grand Cherokee that came with a factory installed tow package it should already be flashed from the factory.

If your lights are not working first I recommend checking the fuse box in your engine compartment for missing or damaged fuses. The terminals for the parking and signal lights are F29, F53, and F81.

If all your fuses are good I recommend checking the wiring connectors that go into the factory harness. You will want to ensure that they are fully seated into their connectors.

If everything is good and you still do not have lights you will want to reach out to a Jeep dealer to ensure that your vehicle does have the correct computer tuning and determine if there is something wrong with the computer on your Jeep.

I have linked an additional article below that goes into deeper detail about troubleshooting trailer lighting systems.

expert reply by: Bud M