Interior lights do not come on. New truck

MetalGrand · Nov 25, 2018

Hello, I bought a brand new 2018 2500 yesterday and ran into a weird issue. When I open my doors, I don’t get any interior lights on to light up the cab. I even messed with the sliding knob to the left of the steering wheel but could only get the lights on if I manually turn them on. The manual says the knob should be all the way to the right to activate the courtesy lights, but nothing.

Am I doing something wrong?

HDHNTER · Nov 25, 2018

I experience something similar except that the interior lights will work as they should for 5 or so door openings (w/out key in ignition) but then, nothing.... unable to force them on w/ the dimming knob but as soon as I put the key in the ignition & turn it to key on / engine off, the interior lights work again... weird issue. I was thinking it was my LED interior bulb swap that was causing it, didn't notice this happening before that. Following this thread as it's the only issue I have but it is definitely an annoying one.

WilliamS · Nov 25, 2018

stupid answer but make sure the wheel under the headlight switch isnt set all the way down, This will keep the lights from turning on. If you turn it all the way right I believe it will click and turn on all the lights manually. If this works its likely because you have the switch turned all the way down.

Fjgun · Nov 25, 2018

I changed the interior lights to LED’s And it started happening to me as well. Works 1 out of 5 times when the door opens. Im sure its answered somewhere in this forum.

atc250r · Nov 28, 2018

Maybe my reply in this thread will help someone:

https://www.ramforum.com/threads/interior-light-led-swap.122965/page-2

JFR Johnny · Dec 10, 2018

Hello, I'm having the same exact problem with my new 2018 ram 2500. Took it into the dealer and they said its probably the aftermarket 3rd brake light. Its not aftermarket. Its factory light.. same with cab/roof lights. Hopefully someone can help...

JohnnyMac · Dec 10, 2018

JFR Johnny said:
Hello, I'm having the same exact problem with my new 2018 ram 2500. Took it into the dealer and they said its probably the aftermarket 3rd brake light. Its not aftermarket. Its factory light.. same with cab/roof lights. Hopefully someone can help...

I'd take that right back to him and tell him exactly that. It's factory and you want this to work correctly.

Scottly · Dec 10, 2018

Make sure the wheel you are adjusting is the headlight dimmer and not the a/c vent adjuster. One is right above the other.

baldpope · Dec 10, 2018

I'm having the exact same problem. Works immediately if I plug the key in, but about half the time, the lights do not come on if the engine has not been started between door opening.

Someone mentioned about 5 or so openings, that seems inline with what I experience. I've also swapped out my dome lights with LED.

RamCares · Dec 11, 2018

JFR Johnny said:
Hello, I'm having the same exact problem with my new 2018 ram 2500. Took it into the dealer and they said its probably the aftermarket 3rd brake light. Its not aftermarket. Its factory light.. same with cab/roof lights. Hopefully someone can help...

Hello JFR Johnny

Keep us updated on this concern going forward. If there is anything we can do to assist in the future, don't hesitate to send us a direct message.

Lamar

RAM Social Care Specialist

JFR Johnny · Dec 14, 2018

Please come up with a fix to this problem.. I hear a lot or having the same issue.

Interior lights do not come on. New truck

MetalGrand

Junior Member

HDHNTER

US AIR FORCE VETERAN OEF - OIF

WilliamS

Senior Member

Fjgun

Junior Member

atc250r

Member

JFR Johnny

Junior Member

JohnnyMac

There are no stupid questions, just stupid people.

Scottly

Senior Member

baldpope

Junior Member

RamCares

Senior Member

JFR Johnny

Junior Member

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