I have the same issue what you had, I drive a 2016 Honda Pilot EXL during that time I had about 47000 miles on the car. Same problem you had with the dashboard lights glitching coming on like the car is possessed. Same thing with the alarm going off intermittently day and night. At first what I did was unhook the hood latch which disable the alarm going off but my dashboard still glitches, thus draining my battery. So I finally brought the car into Honda and told them to change out the Anti Theft Lock Main Control Unit is what they label it as and not do a diagnostic/testing which they will charge me for something that I know that will fixed the problem. The unit is right behind the glove box and your right about the key fobs being re-program. Everything cost me about $800, could have been $1000 if they didn't lose my set of keys which they call me and said they lost it so i have to drive back to the dealer with the spare key therefore they waived the re-programming fee for the key fob. If you can find another person that can re-program the keys do it if not take it to Honda. I did this back in December of 2022 and up until now I haven't had any problems with the alarm going off and the dashboard glitching. Keeping my finger crossed that it will last another 5-6 years before it comes back.

 

Thanks a lot sir. Do you by any chance have the SKU of the part they replaced?

 

I don’t remember if I still have the paperwork will let u know if I find it

 

Thanks a lot sir! This helps me greatly!

 

Thanks a lot. My 2017 Pilot EX-L has the same issue and I have already taken my car it to the dealer 3 times. As per the HONDA dealer, the battery is bad and I have it changed. But the issue still exist. Now i will do the same thing and let them to change the Anti Theft Lock Main Control Unit. Hopefully, it will work.

 

Hi.Keyless Access Control Unit.Was replaced under warranty was causing the alarm to go off in the night and many other times.Also the Sunroof/Windows opened at all times.Once when it was raining.Sorry I don't know the cost, but seems to have fixed our issues.It took hours for the tech to find.Hope this helps.

 

I forgot we also had the dash lights issue and a click click clicking noise could be heard.

 

I've had this issue on and off for the last year. During all of my research I found this video

showing one of the Integrated Curciut on the Keyless Access Control Unit wasn't properly conformal coated. This allowed corrosion to build up on one of the pins, causing a short. I pulled my Keyless Access Control Unit apart and found corrosion on the exact same pin that is in the video. I cleaned it up and coated it with some erathane so it wouldn't happen again.