Siri won’t work in the car - iPhone 11

Hello Romalo21,

Welcome to Apple Support Communities!

We understand from your question that when you are in the car Siri does not work as expected. We can certainly help you with this!

This could be due to the fact that 'Do Not Disturb While Driving' is enabled. This article will be a good resource for you. It will walk you through the necessary steps to resolve the question.

How to use Do Not Disturb While Driving

'What to expect when Do Not Disturb While Driving is on 

Here's what to expect when Do Not Disturb While Driving is turned on. You can customize many of these features in Settings.

• Your iPhone stays silent and the screen stays dark. If someone sends you a message, they receive an automatic reply letting them know that you're driving. If the message is important, the sender can type the word "urgent" to make sure that you receive a notification. Then you can pull over to read their important message or ask Siri to read it to you.
• iPhone delivers some notifications, such as emergency alerts, timers, and alarms.
• Phone calls are delivered using the same conditions as standard Do Not Disturb: You can allow calls only from your Favorites, and you can allow calls to come through if the same person calls twice in a row. If your iPhone connects to your car via Bluetooth, calls will come through as usual, and you can use the buttons, microphones, and speakers in your car to take your call.
• If you use Maps to navigate, your iPhone still shows lock-screen navigation help and gives turn-by-turn instructions.
• If you're a passenger and you try to use your iPhone while the feature is active, you must tap I'm Not Driving to turn it off.'

We hope this is able to resolve your issue. If you have any more questions or this does not resolve your issue, please reach back out on the thread!

Cheers.