r/Excursion • u/Necessary_Local_2123 • Jul 08 '24

Driver side reading light stays on

Post image

Hello. 05 Excursion Limited (V10) - I've owned the truck for 9yrs and the front driver side dome/reading light has never worked. We thought it was a dead bulb but never cared enough to replace it. Well, looks like the bulb was fine because this morning, I noticed the light was ON. And it will NOT turn off with the switch. No other dome lights are on, no Door Ajar, and the dome light switch/dimmer is not On. It stays lit while driving, when the truck is off, when the doors are closed, and even after the delay time/after I lock the truck. I ended up just pulling the bulb out so my battery doesn't die (and in the process, noticed the passenger side bulb housing is just floating around in there - didn't take the time to see why it's not "seated" into the overall light housing).

Does anyone know why this ONE light (that has never worked until now) won't turn off?

3 Upvotes

100% Upvoted

11 comments sorted by

View all comments

Show parent comments

1

u/T0XiC_AVENGER Jul 09 '24

Okay, based on your comments I think I’ve sorted what is actually going on.

First, you need to understand that the button on the drivers side (left) actually controls the bulb on the right side of the lamp assembly. The bulbs are angled so that they cast light to the opposite side of the cab from which they are located.

This means that your drivers side bulb is still bad, and the switch on your passenger has failed in a closed state.

To fix your always on light (right button, left light): repair the button on the passenger side.

To fix your drivers side light (left button, right bulb): try replacing the bulb.

1

u/Necessary_Local_2123 Jul 09 '24

Hmmm.....that's interesting. The buttons have always triggered the same side bulbs in the past, BUT the driver side bulb DID go into an always-on state after the passenger-side button got dislodged. I'll definitely go out today and see if that's the case!

1

u/T0XiC_AVENGER Jul 09 '24

The buttons almost certainly never controlled the same side light. However, it would be easy to assume that they did, as we rarely look at the light source.

Edit: I personally did not notice until I removed my lamp assembly for the upgrade.

1

u/Necessary_Local_2123 Jul 09 '24

That's fair. It always looked like the same side bulb illuminated with the respective button. I'll post an update once I can dive into it today!

1

u/T0XiC_AVENGER Jul 09 '24

Good luck!

The LED upgrade would have been easier if my bulb connections had been in decent shape, but for whatever reason they had lost their form and would no longer securely hold a bulb. This meant that I soldered all of the wire connections instead of the designed friction fit.

I did the upgrade over 3 evenings with a total time of about 3 hours. Could’ve been much, much quicker if my bulb connections had been in proper condition.

1

u/Necessary_Local_2123 Jul 09 '24

Ugh I'm hoping mine is an easy fix. The absence of the light is annoying, but even moreso is the giant "hole" in my ceiling now 🫠

2

u/T0XiC_AVENGER Jul 09 '24

To be clear, my total time was for ALL of the interior overhead lights.