Hyper flashing - ONLY on mirror signals

[chasen7]

First, yes I did search for the topic first and didn't find anything exactly related...I changed all of my exterior lighting to LED over the summer. The mirror signals were already LED. The issue I'm seeing is hyper flashing ONLY on the mirror signals. The front and rear turn signal LED's are blinking normally, but the hyper flashing of the mirror signals is obnoxious at night as it does cause the hyper flash on the dash. I know there are no turn signal relays to swap out to LED relays, so I'm wondering what else I can do to resolve this. All lighting works as it should...expect the dang mirror LED signals...

 

[DILLIGAF]

Alpha ODB tell it it's LED

 

[chasen7]

Hmmm...I have a Zurich OBD. Wonder if I can adjust the controller with that?

 

[Glick]

I have the exact same issue. Have you resolved it yet?

 

[Ken226]

I have the exact same issue. Have you resolved it yet?

I'm assuming you've changed the appropriate lights to LED in AlfaOBD? And the error is still there?

 

[04fxdwgi]

Hmmm...I have a Zurich OBD. Wonder if I can adjust the controller with that?

Those Harbor Freight ones are just read / reset. They won't change the program. You need a bidirectional OBD dongle like OBDLink MX+ (or equiv bidirectional) with the AlfaOBD program, or the big $$ dealer scan tools to make the changes in the program.

 

[DeputyChef22]

I’ve changed all my signals to LED but have found that if a certain number of LED diodes are non-functioning, it’ll trigger the mirrors to rapid flash but the front and rear signals to flash normal. My fix is buying new assemblies since they’re not serviceable assemblies.

 

[Glick]

What new assemblies are you referring to? Headlights or puddle lights?

 

[Stubby01]

2016 Ram 3500 I had to replace my headlight assemblies due to a burnt out RH DRL/park light/turn signal LED (What joke to replace the both headlight assemblies for one light). Still getting the Right turn signal out, and now LH turn signal out message on dash to include hyper flash dash turn indicator and both mirror turn signals. All other turn signals work normally. Should I get the ODBLink MX+ and software to reset the sofware? I read somewhere that maybe disconnecting the vehicle batteries to let the system reset and relearn its new light setup???

 

[Jacob Maguire]

Do you have premium OEM LED tails? If so, I had two or three diodes burn out in my Laramie's OEM tails, causing the same. I used these and they have been solid since July 2025.

Amazon.com

 

[Stubby01]

Yes I have the orignal LED tails. I will check them to see if any diodes are out.