Siri ios10

Hello Daniel486,
It's my understanding you've been having issues with Siri understanding you since updating to iOS 10. I want to make sure Siri is working as it was prior to updating. I am here to help.

Please follow the steps below.

1. Make sure that your iOS device has an Internet connection through Wi-Fi or cellular data.
2. On your iOS device, make sure that Siri is turned on under Settings > General > Siri.
3. Restart your iPhone, iPad, or iPod touch.
4. On your iOS device, go to Settings > General > Siri and turn off Siri. Then turn it on again.
5. If you're using an iOS device, try to use Siri with a headset. If Siri only works when you're using a headset, get help with the microphones on your device.
6. Contact Apple Support.

Use Siri on your iPhone, iPad, or iPod touch

Thank you for using Apple Support Communities.

Thank you for trying the recommended steps and following up. Since the issue began after updating, the next option would be to restore the iPhone with iTunes. This step does remove all content and settings, so it's very important you back up your content first. Please follow the steps in the link below to back up and restore with iTunes.
Use iTunes on your Mac or PC to restore your iPhone, iPad, or iPod to factory settings

If the issue continues please contact Apple Support using the following link.
Contact Apple Support

Have a great day!