CX-5 still flashes key fob battery low after battery change

[Gooogle]

My key fob was dying so I replaced it with a 2025 battery last week. It works but often when I get into my car, it still says no key detected and I have to press my fob on the started button to start.

Any ideas what is going on? This didn't happen last time I changed the battery. 2019 CX-5

 

[Mazdiod2]

That is pretty weird.
I bought some batteries, I think they were a 4-pack. The first one(s) were ok, but when I tried to use the remaining batteries several years later they were already low.
Did you buy some fresh ones this time? I had to go out and buy another pack.

 

[wlong01]

Buy new batteries.

 

[HyFlyer]

You can also squeeze a 2032 in there.

 

[Cooper1]

Make sure the other fob isn't nearby. My wife's fob will do that when we're both in the car.

 

[wlong01]

Make sure the other fob isn't nearby. My wife's fob will do that when we're both in the car.

That shouldn't happen. We always ride with two fobs in the car and never have a problem.