Harley23

Hello everyone,

I have a 2008 Ford F150 Harley Davidson with 65,000 miles. I've owned the truck since new and have never encountered such a problem. I drove the truck as I normally do one day last week, got home turned the truck off and proceeded to do some yard work around the house. I went to use the truck later that evening and the battery was dead so I put it on the tender and let it charge up. Once the battery had some charge I noticed the rear running lights and third brake light were on? All the doors were closed, the light switch is off, and I can't seem to figure out why the rear lights are staying on.

I checked all the fuses and all of them seem to be fine. I also disconnected the battery for a few days and tried again but the rear running lights will not turn off. I am hoping someone can chime in their expertise and help me fix this problem.

I appreciate all suggestions and any help!

Thank you!

grss429

there is a dimmer switch by the steering column that you can play with, if it's fully on it will keep the 3rd break light/cab light on

vintageman

You can check the brake switch as well. My first (defective) new one a couple weeks ago would leave the brake lights on, I would have to reach under the front panel and wiggle it some to get the brake light to go off.

FST150

Check the door sensors that tell the truck the door is open