Hey Mazda Owners

[ChrisL]

Do you have to replace the battery on your key fob frequently?

I got my car in May and shortly after buying it got a low battery alarm (the car tells me if the fob battery is low).  This morning I got the alarm again so it’s been about 5 months since I last replaced the battery?  I don’t ever remember replacing a fob battery on my other cars.  

Oh and @petitepedal it’s 2025 battery.  It’s easy to replace them, it’s just kinda like fuel, you have to do it often…

 

[petitepedal ★]

I was about to replace the one on my 6..sometimes it worked..and from a distance and sometimes  it didn't even 3 feet from the car.

I have had the cx5.....22 days and the key fob is working just fine 

[jsharr ★]

I think you got a bad battery.  Everything I am seeing is saying years.  

[Thaddeus Kosciuszko]

27 minutes ago, jsharr said:

I think you got a bad battery. 

Jsharr's right.

Somebody  fobbed  off a bad battery on you.

[team scooter]

Yes, something with the Mazda's push button start searching for signal or some such. Lots of stuff going on there. I just change the batteries every other year so we won't be stranded at the worst possible time. Interestingly, I still have the original batteries in my '04 Dakota fobs.

[groupw]

We are still on the battery for our CX5 fob, I think. My fob for our 6 never worked right, but WoW’s did. 
I had to replace the original battery on my 99 Dakota fob last year. 

[Ralphie ★]

Petite had the right idea. Trade it in!  

 

[Parsnip Totin Jack ★]

We’ve changed the fob battery for our CX-5 twice since 2016. We bought the lifetime replacement from batteries + bulbs. 

[ChrisL]

33 minutes ago, team scooter said:

Yes, something with the Mazda's push button start searching for signal or some such. Lots of stuff going on there. I just change the batteries every other year so we won't be stranded at the worst possible time. Interestingly, I still have the original batteries in my '04 Dakota fobs.

This is what i have.  I’m wondering if the fancy gizmo’s are burning out the battery.

[Further]

My 2003 Honda is on the original battery

[jdc2000]

Both of the transmitters for my 2009 Acadia still work from the opposite side of the parking lot.  I would say the "new" battery you got was bad,  My bike computer uses CR2032 coin batteries.  Sometimes it won't work properly with a brand new one, while a different new battery will last for years.

 

[Bikeguy]

I changed the fob battery in my 2016 Prius in 2019.   A few months more than 3 years.   The car has a push button start and communicates with the fob a lot.    It probably will need to be changed sometime soon. 

I changed the fob battery in my 2010 Subaru last year.   11 years.   It should be good for a long time.  

WoBGs 97 Honda is old school and need a key.