I have a similar but different issue. My 2019 Sierra Denali has not problem syncing my contacts using my Android Samsung Phone but my issue is that I have to enable my contacts sync feature on my phone every time I step in the car otherwise it automatically switches to OFF and it won't sync. I am going crazy trying to figure a way to keep this feature to stay ON (enabled) all the time w/o me having to switching ON all the time.
Anybody with this same issue and a solution? Please advise
Thanks