Smart Key Not Detected

[Ralegend]

Hello.
As the title says, I get the "smart key not detected" warning. The warning only comes up when I stop driving and get out of the car. That is, after the trip is over. I can lock and unlock the car. However, the warning comes up every time I leave the car at the end of a trip. Same with the both keys.
Any ideas?
Thank you.

 

[webhiker]

Do you stop the car by pressing P on the big button?

 

[Ralegend]

Yes. I do.

 

[webhiker]

That's strange

 

[AlC]

The car normally only checks for the key when it detects someone sitting in the driver's seat.

I wonder if the pressure switch in your seat is activating even when you're not in it.

Is there anything on your seat?

Do you ever get the error after unlocking the car or only at the end of a trip?

 

[Ralegend]

Only at the end of a trip. No other.

 

[AlC]

My best guess is the pressure switch in your driver's seat is activating after you've left. Maybe it's slightly faulty and triggers again moments after someone has been sitting in it.

If that was happening and you had just exited the car with the keys in your pocket, it wouldn't find the keys and would pop that message.

 

[KBZR]

How old is your car? Try replacing the battery in the key

 

[Ralegend]

I'll try this. I'll write here after I try it.