u/Bowry_Lrooks

Hello, I have a 2010 Prius and I am wondering which battery i have to replace for this issue.

My key fob battery died yesterday, however when I touched the key directly to the ignition it still took several tries before it started.

Then when I tried later I could not get it to start at all touching the key to the ignition it just kept giving the error message about not having the key / please touch the key to the ignition.

Eventually I was able to get it started by reseating the battery in my keyfob.

Any idea which battery is going bad that caused this? Besides the key fob one ofc.

Thanks