Key fob detection issues after LED install

[Bitwise]

I installed Lasfit rear cargo LEDs and a Lasfit interior dome festoon LED earlier today and noticed afterwards that there are issues detecting my key fob. I've had a few cases where the fob was in my pocket but I got a 'fob not detected' message on the instrument cluster and the truck would not start until I took the fob out of my pocket and put it in the cup holder. I've also noticed that the proximity keyless/touch entry does not seem to be as sensitive as it was before. I've had to literally take the fob out of my pocket and find a 'sweet spot' in order for the doors to unlock by grabbing the handle.

This was definitely not an issue until I installed the LEDs today.

Is this all just a happy coincidence or do these aftermarket LEDs introduce some known interference with the key fob?

 

[NorthStar]

You need the new style 3rd Brake light from Lasfit and this problem will be solved. Below is the new style you should be using...if not, return the old one for an exchange.

 

[Bitwise]

You need the new style 3rd Brake light from Lasfit and this problem will be solved. Below is the new style you should be using...if not, return the old one for an exchange.

View attachment 76545
View attachment 76546

I didn't replace the third brake light, just the two white cargo lights on either side of it. The third brake light is still the stock halogen. Is the solution the same?

 

[B.Ras]

I installed Lasfit rear cargo LEDs and a Lasfit interior dome festoon LED earlier today and noticed afterwards that there are issues detecting my key fob. I've had a few cases where the fob was in my pocket but I got a 'fob not detected' message on the instrument cluster and the truck would not start until I took the fob out of my pocket and put it in the cup holder. I've also noticed that the proximity keyless/touch entry does not seem to be as sensitive as it was before. I've had to literally take the fob out of my pocket and find a 'sweet spot' in order for the doors to unlock by grabbing the handle.

This was definitely not an issue until I installed the LEDs today.

Is this all just a happy coincidence or do these aftermarket LEDs introduce some known interference with the key fob?

I’ve read of others that have had this same issue but I haven’t had any problems with any of the Lasfit LED bulbs that I have installed in my 19 Lonestar. Some LED bulbs output to much RF that interferes with the key fob.

Lasfit LED packages for RAM 1500
https://r.tapatalk.com/shareLink/to...-RAM-1500.23790/&share_type=t&link_source=app


Sent from my iPhone using Tapatalk

 

[NorthStar]

Like B. Ras, I’ve never had even one problem with the Lasfit LEDs. The solution I provided is from Lasfit for those who have a problem after replacing the 3rd brake light. I’d recommend calling Lasfit tomorrow and speak with them as they have fantastic customer service and will help you get it figured out.

 

[RickWaz]

I believe that the Lasfit ("flat") style below is the type that may produce the Key Fob Not Detected error. But the Lasfit ("round") style does not. I have the round style as replacement bulbs for my (2) White Cargo Lights w/ no issues.

921 912 W16W LED Reverse Backup Trunk Cargo Light Bulbs, 2 Bulbs

LASFIT T15 921 CANBUS error free led bulbs are 1400 lumens extremely bright. Fit most backup light, dome light, trunk light, etc. We provide 1 year worry-free warranty.

www.lasfit.com

921 912 CANBUS Error Free White LED Reverse Back Up Light Bulb - Upgraded Version, 2 Bulbs

1. These CANBUS LED bulbs don't work for cargo light for the 2021 Ram 1500.2. These CANBUS LED bulbs don't work for reverse light for the 2021 Chevrolet Suburban.3. These CANBUS LED bulbs don't work for reverse light for the 2018-2021 Honda Accord.4. These CANBUS LED bulbs don't work for reverse...

www.lasfit.com

 

[Bitwise]

I believe that the Lasfit ("flat") style below is the type that may produce the Key Fob Not Detected error. But the Lasfit ("round") style does not. I have the round style as replacement bulbs for my (2) White Cargo Lights w/ no issues.

921 912 W16W LED Reverse Backup Trunk Cargo Light Bulbs, 2 Bulbs

LASFIT T15 921 CANBUS error free led bulbs are 1400 lumens extremely bright. Fit most backup light, dome light, trunk light, etc. We provide 1 year worry-free warranty.

www.lasfit.com

View attachment 76584

921 912 CANBUS Error Free White LED Reverse Back Up Light Bulb - Upgraded Version, 2 Bulbs

1. These CANBUS LED bulbs don't work for cargo light for the 2021 Ram 1500.2. These CANBUS LED bulbs don't work for reverse light for the 2021 Chevrolet Suburban.3. These CANBUS LED bulbs don't work for reverse light for the 2018-2021 Honda Accord.4. These CANBUS LED bulbs don't work for reverse...

www.lasfit.com

View attachment 76585

Thanks, sounds like you all have identified my issue. I’m wondering if I’d be better off to just return the lasfit stuff and go with diode dynamics. Any thoughts?

 

[RickWaz]

I read that Lasfit will accept the older, flat style and exchange for the newer, round ones that I use w/o issues. But I did go w/ the Diode Dynamics 921 red LED for my 3rd brake light (CHMSL), as I read that even the newer Lasfit red 921 LED might produce the "Keyfob not Detected" error.

Good luck!

 

[NorthStar]

Lasfit is being a good corporate citizen and exchanging the LEDs. Many of us have had great service from the LEDs...I’d just ask them to swap them out...but have also heard positive things about DD.

 

[J MO]

What a 2021 Ram 1500, are they having issues If you change out the cargo lights/3rd brake light with DD or Lasfit LEDs, anybody know???

 

[stlracing289]

What a 2021 Ram 1500, are they having issues If you change out the cargo lights/3rd brake light with DD or Lasfit LEDs, anybody know???

Lasfit did not work for me and I have a 21 RAM 1500

 

[UnloosedChewtoy]

They have a note on their website that the 2021s are different, and their bulbs don't work (or don't work well).

 

[J MO]

Thank you for your response, do you know which brake light leds works on 2021s???

 

[UnloosedChewtoy]

Thank you for your response, do you know which brake light leds works on 2021s???

For 2021s, other than the official Mopar LED 3rd brake light, I do not.
Mopar unit is part # 68444540AB. However, it gets a little spendy, as it also includes the built-in camera. Seen them going for $350-$400 recently.

To get the camera to work, you'd have to buy the special rear view mirror and appropriate cables (discussed in other threads here on the forum), but the LED lights themselves are plug and play for 2019-2021. Many here just leave the camera unplugged.

 

[NorthStar]

Thank you for your response, do you know which brake light leds works on 2021s???

You might want to check with Lasfit again as their website now indicates they have LEDs that have been checked and work with the 2021 Ram 1500. (“Bulbs replacement for 2021 Ram 1500. All LED bulbs recommended for the Ram 1500 have been tested. All LED bulbs are plug-and-play. No need for any modification. Choose the bulbs you want and get a new look on your 2021 Ram 1500!”):

2021-2023 Ram 1500 LED Bulbs H11 9005 Exterior Lights

LED bulbs upgrade for 2021-2023 Ram 1500. Package Included: forward lighting bulbs, fog light bulbs, front turn signal lights, reverse lights, brake lights, dome lights, map lights, and more. Free shipping. 45 days hassle-free warranty.

www.lasfit.com

Likewise,I’d recommend calling Diode Dynamics to see if their LEDs really fit a 2021. They have great customer service and will tell you straight up of there are any issues or what they would recommend for a 2021 Ram:

Search results for: 'by-vehicle ram-truck 1500 2019-2021-ram-1500-led-lighting-upgrades'

Automotive LED lighting for cars and trucks, including headlight, fog light, turn signal, backup, tail, interior, halos, demon eyes, boards, strips, and more!

www.diodedynamics.com

 

[stlracing289]

I noticed the cargo lights and the 3rd brake light are excluded from that link.

 

[McFly]

Any update on what LEDs work with the 2021?

 

[McFly]

I can confirm that I have not had any passive entry or key FOB issues with these lights from Amazon. 2021 Ram Limited

https://www.amazon.com/dp/B01LX4FMD1/ref=cm_sw_r_cp_apa_glt_fabc_QDPT8DYXGZY1TGX38C5C?_encoding=UTF8&psc=1

 

[BThiesing]

I can confirm that I have not had any passive entry or key FOB issues with these lights from Amazon. 2021 Ram Limited

https://www.amazon.com/dp/B01LX4FMD1/ref=cm_sw_r_cp_apa_glt_fabc_QDPT8DYXGZY1TGX38C5C?_encoding=UTF8&psc=1

Can confirm that these lights work perfectly on my truck. My Sylvania LED lights caused interference so I popped these in and it is no longer an issue

 

[Luis1275]

You need the new style 3rd Brake light from Lasfit and this problem will be solved. Below is the new style you should be using...if not, return the old one for an exchange.

View attachment 76545
View attachment 76546

This only works for 2019-2020. Not for 2021 Lasfit told me it will not work for 2021 model year.