Hi mickeyb1,
We appreciate you reaching out to us. We understand that your CarPlay will only work when you are in your garage.
We’d like to make sure that we're on the same page, does CarPlay work if you connect it via Lightning cable?
Have you had the chance to set up CarPlay again?
Use CarPlay with your iPhone
In the meantime, we recommend that you check for a software update.
While it isn't inherently assured that an update will resolve the issue, updating to the latest software version for your device can help isolate potential software issues.
Kindly secure a backup and update.
How to back up your iPhone, iPad, and iPod touch
Update your iPhone, iPad, or iPod touch
Take care!