Bluetooth disconnects when my car is in motion

[Boogie man]

My Z fold 5 took an update a few days ago to the OS and now my phone disables Bluetooth when I am in a moving car. 

This is bothersome because my galaxy buds are disconnected and so is my watch, S6 classic. This happened in vehicle where I  am paired to the system and those where I am not. I can't even enjoy my wearable tech on the go. 

I am using One UI 6.1 and Android 14. The security patch is from July 1, 2024. I also updated to the most current version of Smartthings w days ago. 

Please tell me what settings control that action so I can turn it off. 

[BandOfBrothers]

I use a Samsung Galaxy s²⁴ Ultra and Watch⁶ Classic and Bluetooth remains stable when communicating however I travel on public transport. 

All my software is up to date too. 

Are you using Android Auto  ?

Just as a starting point can you try > Clear Cache Files from the phone's System Partition Section  > https://www.samsung.com/uk/support/mobile-devices/how-do-i-clear-the-cache-on-my-device/ You may need to insert your earphones or hook upto a powered On Laptop or use a Tv's USB Port to access the Clear Partition Section. This may help with lag or stutters as this clears the phone of old/unused or broken cache files.There is also a Repair Apps option in the Menu System too { Possibly excluding the s²⁴ Series of phone's }