2016 CX-5 Key Fob Issues

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2016 Mazda CX-5
My dad's 2016 CX-5 Touring has been having key fob issues for the past 2 or 3 months. It has the factory remote start as well which has also been having issues. The key fobs themselves go through batteries in about a month. We tried swapping one for the other, and put new batteries in both of them several times, and the batteries are dead in a month.

The other issue is the remote start will not work reliably. It is totally unpredictable. Sometimes it will work 5/5 times, other times, the fob will turn on, then when you press and hold the start button, the key fob just shuts off. Now that we are into the winter this is especially annoying.

The car is still under warranty, so it should be covered, but I'm wondering if anyone else has had similar issues with their key fobs and/or remote start?
 

craigo

Contributor
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2014 CX-5 GT FWD, 2015 Mazda 3 Touring
What kind of batteries are you putting in and where did you get them? There are lots of crummy cheap counterfeits out there.
 
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2017 Mazda CX-5 GT, 2016 Mazda6 iGT, 2014 Mazda3 sGT hatchback
Do you keep the fobs very close to the car? Within 10 ft?
Or do you keep the keys in garage for example?
 

7eregrine

The man, the myth, the legend
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Land of Cleve
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2016.5 CX5
A month? That is absolutely not acceptable. Mine are over 2 years old on the original batteries.
 
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2016 Mazda CX-5
A month? That is absolutely not acceptable. Mine are over 2 years old on the original batteries.

Yes, unfortunately that is not an exaggeration. It's been one month, give or take a week. And there is also the remote start issues.
 

erhayes

Contributor
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CX5 Reserve
My fob batteries are lasting 2 years. You must not touch the surfaces of the batteries as you install them. If you leave finger prints on the surface there will be battery leakage and shorten its life. Ed
 

7eregrine

The man, the myth, the legend
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Land of Cleve
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2016.5 CX5
While I don't really believe that, Ed, if true it certainly wouldn't make a 2 or 3 year battery last....a month.
You need to take this up with the dealer.
 
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2019 GTR
I keep my fobs inside the house when I park in the garage. I am currently going on 1.5 years with the original batteries - so far no issues. I'd have your remote/system looked at.
 
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2016 Mazda CX-5
A month? That is absolutely not acceptable. Mine are over 2 years old on the original batteries.

While I don't really believe that, Ed, if true it certainly wouldn't make a 2 or 3 year battery last....a month.
You need to take this up with the dealer.

I'll be going to the dealer this week. My dad and I really like this car overall, but it has had more issues in the first 6 months than my dad's last Toyota did in the first 4 years. First there was the issue with brake noise which was (mostly) resolved after several TSB revisions and several trips to the dealership. And now there are these issues. This car is a CPO with only 30k miles on it. There have been some other cosmetic issues as well that I've either ignored or fixed myself. There's a lot of things I like about the car, but I'd be lying if I said I wasn't a little disappointed with all the issues.