OnStar Phone Number 888-466-7827: Shortcuts & Tips

OnStar Phone Number

Customer Service Line
Avg. Wait: 14 minutes
STOP. Don't Call.
The hold time is long & dealing with their reps is frustrating. Save time by telling us your issue:

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Make a booking
45 Popular Issues
Change booking
21 Popular Issues
Cancel booking
28 Popular Issues
Overcharge/Strange charge
27 Popular Issues

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