Is it possible that my driving mode “do not disturb” message will automatically turn on while not driving?

Hi there! This is a good question and I can explain this to you. So with Driving mode there are different settings that you have:

• Automatically: Driving will be activated based on detected motion.
• When Connected to Car Bluetooth: Driving will be activated when your iPhone is connected to car Bluetooth devices.
• Manually: Driving can be activated manually from Control Center.
• Activate With CarPlay: Driving will be activated automatically when your iPhone is connected to CarPlay.

Now when you set it to Automatically there may be a small chance that it might assume you are driving and send a message.