Night time Running lights/ parking lights don’t work

Duramax85 · May 1, 2021

Any idea why my night time running lamps dont work. The rear stop lamps work and the turn signals work but the running lights in the rear don’t work. I also don’t have any parking lights and only turn signals in the front.
I have a Banks pedal monster and have replaced the headlights and front turn signals with LED bulbs. Rear revers lights with LED bulbs as well. No codes on the dash. Just my running lights in the rear don’t work and my parking lamps/ running lamps don’t work in the front.

unit · May 1, 2021

The problems are most likely related to the modifications you've done. Do you know when the parking and other lights stopped working? That is did they work after any of the mods were done? You may have to reverse the mods and see if the other lights come back to life. GM won't warranty the truck with the mods in place so it's on you to find the problem. Replacing incandescent bulbs with LED's sometimes require a resistor in the circuit so the truck sees the correct resistance for the circuit to work properly. That could be part or all of the problem.

Edited May 1, 2021 by unit

Duramax85 · May 1, 2021

52 minutes ago, unit said:

The problems are most likely related to the modifications you've done. Do you know when the parking and other lights stopped working? That is did they work after any of the mods were done? You may have to reverse the mods and see if the other lights come back to life. GM won't warranty the truck with the mods in place so it's on you to find the problem. Replacing incandescent bulbs with LED's sometimes require a resistor in the circuit so the truck sees the correct resistance for the circuit to work properly. That could be part or all of the problem.

Im pretty sure it was this way when I purchased the truck. When I first noticed it I realized I didn’t have the amber driving light or parking lights in the front. Then last night a family member driving behind us told me the rear night time running lights didn’t work. All other lights work fine.
The LED stuff I put in is all CANBUS compliant and has the required resistance for the system.

newdude · May 1, 2021

Take the LEDs out of the front. Start with the park lamps. Put the factory bulbs back in and re-test.

Duramax85 · May 1, 2021

18 minutes ago, newdude said:

Take the LEDs out of the front. Start with the park lamps. Put the factory bulbs back in and re-test.

That was the first thing I did. That didn’t do anything to fix the issue.
The next step is to put all the original bulbs back in place and disconnect the Banks Pedal Monster.
I didn’t know if maybe someone has had this same issue before. I remember the parking lamps not working prior to my LED bulb install.

Donstar · May 1, 2021

Did you try a warranty repair? They shouldn't refuse unless they determine the mods are potentially the cause of these malfunctions.

Duramax85 · May 2, 2021

I just reversed everything with the exception of the LED headlights. Still doesn’t work. No night time running lights or parking lights.

Duramax85 · May 2, 2021

I just put everything back to OEM including the headlights and it still isn’t working. No night time running lights nor parking lights.

unit · May 2, 2021

Not much else you can do. Leave it in its original state and take it to the dealer for repair. The warranty should cover it.

jhplak325 · May 2, 2021

Did you check the fuses? Park lamp left and park lamp right fuses are in the engine bay fuse box.

José troquero · May 3, 2021

I was driving to Arizona when I realize no fog lights no parking lights only headlights and brake lights . I have aftermarket led headlights and rear brake lights check your fuse there is one for left and one for right side and one for foglghts

Alfonso Azua · May 18, 2022

Where you able to figure out what the problem was? Did you have to go to the dealer? I’m having the same issue.

TJ Vlassich · March 14

On 5/1/2021 at 12:00 AM, Duramax85 said:

Have you found a solution to this i am having the same problems? except it is only my passenger side, My tail light running light is not working along with my Mirror light and the orange marker light on the side of the headlight isn’t working, but on my driver side everything works

Johnwilson · March 14

I am currently having the same issue what is the fix to this ?

DennisThomas · November 1

On 3/14/2024 at 11:03 AM, Johnwilson said:

I am currently having the same issue what is the fix to this ?

Ever figure this out. I'm seeing same issue and weird thing is I have no Relay 35 in engine fuse box. I never removed it, but it states it is for parking lamps, yet it is missing entirely.

On 3/13/2024 at 8:18 PM, TJ Vlassich said:

Ever figure this out? I'm seeing same issue and weird thing is I have no Relay 35 in engine fuse box. I never removed it, but it states it is for parking lamps, yet it is missing entirely.