S5 Contacts not showing when paired with bluetooth

[AC Question]

For some reason not all of my contacts from my S5 are being synched with the phone in my car. They were there 2 days ago, but not anymore. I've deleted the phone from the car and rediscovered it, to no avail.

Any suggestions?

 

[B. Diddy]

Welcome to Android Central! When you unpair the phone, then pair again, do you get any notifications on the phone asking you to allow the Bluetooth device to download your phonebook?

 

[go70]

it did that the first time I paired the phone (about 2 months ago), but did not do it this time.

 

[B. Diddy]

Is there a way to reboot the car's system? I can do it in my car (BMW).