Do Not Disturb While Driving won’t activate

Has anyone had an issue where you are unable to activate DND whilst driving?

When I press the icon (Car symbol on Control Center) the icon just goes back to inactive almost immediately.

I’ve tried uninstalling all profiles (I only have one for Google apps) and hard resets, and nothing seems to fix it.

Any ideas? Thanks!

Just tried mine and it is working fine (iPhone X, iOS 12.1.3)

Is your DND while driving setting in the Settings set to manual - perhaps one of the automatic or bluetooth options are turning it off? This doesn’t seem to make a difference on my phone, but something to rule out.

What happens if you tap the DND moon in Control Center? Does DND stay on then or does that turn straight off, the same as the driving option?