Dumped Contacts

[nycbreckman]

So, for the 4th time now, the Navigation system has "dumped"my contacts from the address book. Once, twice, ok maybe human error but not four times. Has anyone had this happen? Do you see a pattern? Is it tied into service? Would love to hear. Thanks.

[BadgerSteve]

Could it be phone specific? I use an iPhone 4s and that hasn't happened to me. Had the car since March.