Remote Start stopped working after keyfob’s battery got replaced.

Question

Hi all,

My build: 2016 Mazda3 - Push to Start - Evo One - TharOneMaz3 T-harnness.

When: I installed it in 2019 and it has been working wonderfully. I use OEM key to do the Lock-Unlock-Lock combo to remote start (I chose L-U-L instead of L-L-L).

What happened: One of keyfob's battery died. I used the physical key to opened the door and pushed-started with key next to start button couple times.

Problem: Now I can only remote-start when one of the keys is in the car. When key is not in car, after remote-started, everything turned on, but no ignition. I saw the anti-theft icon was also blinking.

My guess: I guess the dead key batter somehow messed up my bypass or some settings.

 

Anyone ran into the same issue? Any help is much appreciated.

 

Thank you, all.

Answer 1

I have not heard of this happening to anyone as of yet.

 

I would suggest simply re programm the evo to the vehicle. DO NOT update the firmware, simply re program the unit to the vehicle.