Open Settings
Tap General
Tap CarPlay
Select your car
Tap Forget This Car
Confirm Forget
To disable CarPlay entirely, go to Settings
Tap Screen Time
Tap Content & Privacy Restrictions
Turn on Content & Privacy Restrictions
Tap Allowed Apps
Turn off CarPlay
If needed, unplug your iPhone from the car’s USB port
If needed, turn off Bluetooth on your iPhone
If needed, disable Siri in Settings to prevent CarPlay activation