Key Fob 2 years old - dead??? - Mazda 6 Forums : Mazda 6 Forum / Mazda Atenza Forum
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post #1 of 10 (permalink) Old 05-09-2017, 11:08 AM Thread Starter
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Key Fob 2 years old - dead???

Went out to the car last night after a school board meeting, and my key fob was completely dead. It was fine when I went in three hours prior.

I've only had the car 2 and a half years. Seems suspect. Anyone else have issues this soon? My wife's FOB is fine. Our Toyota fobs have been going strong for 12 years.

Nothing like trying to pop the key out in the dark!
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post #2 of 10 (permalink) Old 05-09-2017, 11:11 AM
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About normal for a fob that talks to the car so often. It's running on a watch battery (maybe $3 at CVS or Walmart) and takes only a few minutes to replace on your own.
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post #3 of 10 (permalink) Old 05-16-2017, 12:44 AM
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Quote:
Originally Posted by mcjaco View Post
Went out to the car last night after a school board meeting, and my key fob was completely dead. It was fine when I went in three hours prior.

I've only had the car 2 and a half years. Seems suspect. Anyone else have issues this soon? My wife's FOB is fine. Our Toyota fobs have been going strong for 12 years.

Nothing like trying to pop the key out in the dark!
I think with our cars we are recommended to switch batteries every year, that's what the Manuel says on the 2016 Mazda 6

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post #4 of 10 (permalink) Old 05-16-2017, 04:10 AM
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2 and a half years is pretty much max life on these new smart fobs. I just recently changed my battery again a second time. When they start going dead what I have noticed is if you repeatedly click the button over and over it will shortly get enough juice to work again, and keeps working if you keeping using it within a hour or 2. Once you let it sit for a while it starts going dead again. The battery is pretty cheap, about a buck on less online and 2-3 bucks at a brick and mortar.

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post #5 of 10 (permalink) Old 05-16-2017, 10:29 AM
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So wait, you've had Toyota FOBs that went 12 years without a battery change? Interesting. Most key fobs batteries last about 3 - 5 years on average.
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post #6 of 10 (permalink) Old 05-16-2017, 09:27 PM
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The fobs from my old 2005 6 were still going strong in 2016 when I sold it, original batteries. BUT, it wasn't constantly communicating.

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post #7 of 10 (permalink) Old 09-12-2017, 08:21 PM
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Mine went dead after 3 years. A tip, If you have a push to start button and the battery dies you can just touch the start button with the key fob to start the car. Take the key part out to unlock the door manually. Happened to me while I was away with no stores that would sell batteries.
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post #8 of 10 (permalink) Old 09-13-2017, 12:28 AM
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Manual for the Mazda 3 days once every year for the smart key style fobs. The old transmitter fobs for lock unlock only last a lot longer.

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post #9 of 10 (permalink) Old 09-13-2017, 05:57 PM
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About normal however I am just using my second fob :-D
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post #10 of 10 (permalink) Old 09-14-2017, 02:28 PM
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Quote:
Originally Posted by flyandi View Post
About normal however I am just using my second fob :-D
Same here, I have a 2015 and my first fob died a few days ago.
Pretty sure the battery size is CR2025.
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