How Detect Vehicle Parking for Android Auto App

I’m currently developing an Android Auto app, and I’m using the LongMessageTemplate to display content only when the vehicle is parked, as required by Android Auto guidelines. I Attached a image about it’s docummentation

Here’s my problem: the LongMessageTemplate is not displaying correctly. It seems that the system is constantly detecting that the vehicle is in motion, even when the car is actually parked. As a result, the template content doesn’t show, and I suspect that it might be due to some validation or configuration issue.

Here’s what I’d like help with:

• Is there a specific validation step or configuration I might be
  missing that could prevent the system from correctly identifying the
  vehicle’s status?
• Are there known limitations, bugs, or workarounds related to
  detecting whether the vehicle is parked?
• How can I ensure that the LongMessageTemplate behaves as
  expected and only displays when the vehicle is not moving?

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