Fob Battery

[Chris109]

Ok.  For the last month plus, every time I would start the car and I would get the warning that fob battery needed to be changed.  So, I finally changed it yesterday with a brand new battery. (Manual says it takes a 2032 when, in fact, a much bigger 2450 is the one that goes in it).  I'm still getting the warning to change the battery.  Do fobs go bad?

[bbf2530]

1 hour ago, Chris109 said:

Ok.  For the last month plus, every time I would start the car and I would get the warning that fob battery needed to be changed.  So, I finally changed it yesterday with a brand new battery. (Manual says it takes a 2032 when, in fact, a much bigger 2450 is the one that goes in it).  I'm still getting the warning to change the battery.  Do fobs go bad?

 

Hi Chris. First...Do you have two fobs? If yes, what happens when you use the other one?

If no, get yourself a second fob (and maybe even a third) and have it programmed, for your own safety and peace of mind. Better to do it now, then if/when you lose this one or it stops working completely.

 

Concerning your question, of do/can fobs go bad? Yes, certainly. It is generally an unusual occurrence (but happens), unless due to abuse and/or advanced age.

However, it can sometimes take a few start cycles for some warnings to clear themselves (even after replacing the battery). Give it a few days with multiple start cycles and let us know if it clears itself or not.

 

Keep us updated and good luck.

Edited March 16, 2022 by bbf2530

[drolds1]

See this thread from focusfanatics.com. Although it concerns the Focus, that shouldn't matter for these purposes. In some cases, it took a week for the message to clear.