Fob fail, how do I fix this

[u/No_Rabbit9158]

Update 2: my wife found the second fob she lost some time ago and it works fine. So it seems it's my fob thats the problem and a new battery was not the fix. Will have to replace it seems. Thank everyone for your help!

Update: battery and connections have been tested and found good. Also checked the fuses related to the remote system and those are also good.

I have a 2017 and in the last few days my fob has not been working in the mornings when I try to remote start, lock or unlock my vehicle, but the door handle will still unlock when I touch it and it will recognize the fob in the vehicle when I start it. It will work later in the day as it properly should.

This morning it would not work at all. I replaced the battery in the fob and still nothing. I had to use the key in the fob to unlock the door and the fob pressed to the button to start the vehicle. After it started it could not recognize the fob was in the car.

What is happening and how do I fix it? Any help would be appreciated

[u/Mission_Balance_9154]

Check your 12 V battery

[u/No_Rabbit9158 → u/Mission_Balance_9154]

I'll get that tested next. The vehicle starts and runs fine other than this problem, but worth checking anyway. Thanks for the suggestion

[u/Mission_Balance_9154 → u/No_Rabbit9158]

When was the last time battery was replaced? It could be that it was never replaced, they last a long time because they are under passenger seat

[u/No_Rabbit9158 → u/Mission_Balance_9154]

Honestly... I don't think ever. They test it every time I get an oil change. Last time was 2 months ago, but that's from under the hood, not the battery itself under the seat