Key Fobs and LED interference

[ClancyO]

I put these is my 2019 (just cargo, don’t care about brake light) and has no issues. And again in my 2020;
LUYED 2 X 1550 Lumens Extremely Bright Error Free 360-Degree Shine 921 912 W16W 3030 24-EX Chipsets LED Bulbs Used For Backup Reverse Lights, Xenon White https://www.amazon.com/dp/B01LX4FMD1/ref=cm_sw_r_cp_api_i_WMIsFb0D0A1QY

 

[Rapper]

I put in the Lasfits in the cargo lights and 3rd brake light and am having "Key Fob Not Found" issues. If I get in after the truck sitting for a while I get the error. If it's been running a while I can kill the truck and restart with no problem. Has anyone else had any issues with the Lasfits?

YES! Have the Lasfits as well. Same issue with all three installed. Swapped the Red one back to stock and no issue. Since you have to press the brake to start - maybe that's the connection. If the 2 Lasfit cargo lights work and I keep the brake like incandescent - that's fine with me.

 

[Shives]

So, make sure CHMSL is active. Also, I did swap all my bulbs so the green fuse is facing up toward me. This seemed to help huge.

 

[Jayturk]

 

[jafoesq]

YES! Have the Lasfits as well. Same issue with all three installed. Swapped the Red one back to stock and no issue. Since you have to press the brake to start - maybe that's the connection. If the 2 Lasfit cargo lights work and I keep the brake like incandescent - that's fine with me.

My work around for this is when I get in I don't touch the brake and push the start button to turn the truck on. After that I hit the brake and start the truck. Works every time with no issues. I took me a few days of doing this to remember this routine but now it's second nature. I even do that in my wifes car and I don't need to!

 

[Shives]

Yea I’m still having goofy issues. I tried another light in the brake lamp. I’m going to try and make a filter and see what happens.

 

[LakesAZ]

I installed Lasfit LED bulbs yesterday in the cargo lights and the high mount brake light. This morning I got the Key not detected message. I took out the brake light and installed the original bulb and now everything is back to normal. Like someone else said I'm fine with the brake light not being LED so I will keep it that way.

 

[Shives]

I installed Lasfit LED bulbs yesterday in the cargo lights and the high mount brake light. This morning I got the Key not detected message. I took out the brake light and installed the original bulb and now everything is back to normal. Like someone else said I'm fine with the brake light not being LED so I will keep it that way.

Ha ha ha.. yea AlfaOBD has a setting to turn on led

 

[LakesAZ]

I just might give AlfaOBD a try. The price seems reasonable.

 

[mrod909]

I bought the LASFIT lights and the next day I got the FOB not detected message. I swapped out the brake light with the stock one and kept the 2 white leds like some of you have suggested and I still got the same message. I just ended up installing the stock lights again and problem solved.

 

[LakesAZ]

Makes you wonder why we even bothered changing them in the first place.

 

[brian42]

Makes you wonder why we even bothered changing them in the first place.

Because we can.

I am one of the lucky ones that hasn't had any issues.

The standard bulb will burn out at some point and I would have put LEDs in there to replace them anyway. I already took the CHSML out to put a better seal on it after my rear window was replaced. I figured why not do it all at once and (maybe, hopefully) not have to ever remove it again.

 

[LakesAZ]

Because we can.

I am one of the lucky ones that hasn't had any issues.

The standard bulb will burn out at some point and I would have put LEDs in there to replace them anyway. I already took the CHSML out to put a better seal on it after my rear window was replaced. I figured why not do it all at once and (maybe, hopefully) not have to ever remove it again.

That is true we do it because we can.

 

[TheGoogleNinja]

I have a wireless charging phone holder that mounts to the A/C vent and found out the hard way I needed to start the truck before I got my phone on there and the wireless charging activated. It's only happened once though. Placing the key right by the start button worked to get it going again.

 

[barakalesso]

I just reinstalled the 3 incandescent factory bulbs to see if the problem goes away.

Speed Test

 

[Shives]

It will go back to to normal. If you just change the brake light in the CHMSL to halogen. Rather LED. Or program properly.

 

[UnloosedChewtoy]

It will go back to to normal. If you just change the brake light in the CHMSL to halogen. Rather LED. Or program properly.

I had problems with the bed lights in the CHMSL causing interference as well. With the tailgate down (which activates those lights), quite frequently my fob wouldn't be detected when I would try to unlock my doors.

 

[Shives]

I had problems with the bed lights in the CHMSL causing interference as well. With the tailgate down (which activates those lights), quite frequently my fob wouldn't be detected when I would try to unlock my doors.

I’m starting to think it’s something with the key fob sensor in the roof. Some sort of interface. I need to know exactly where this unit is, so I can start to try and isolate it.

 

[LakesAZ]

I informed Lasfit of my problem with the key not detected and their response was to hit the start button once to get to ACC first and then the brake to start. Gee that was helpful of them. I guess I could put a big sign on my dash telling those people that might have to drive my truck how to start it. Im sure the dealer would love that, or the car wash guy, or the tire shop for a rotation. "Hey Mister, your truck say's your key is not detected".

 

[Pep_594]

Anybody using 3rd brake LED from Lasfit? Does it interference with our FOB?

I used the cargo LEDS and 3rd brake light from Lasfit and they all caused problems with my key fob