I have a 2016 Yukon SLT and the IntelliLink constantly drops ONE phone number from my contacts, which happens to be the most frequent number I call. Started about 4 weeks ago. I have reset personal data, reset to factory settings, all of them. Once I pair again, the number is there. Two hours later, it’s gone. Drives me insane. Guess I’ll have the dealership pull their hair out over it.