OnStar Phone Number

The number and steps below are voted the best by over 1440 OnStar customers
OnStar phone support
Read key steps and hints below
What to know before you dial
Press 1, then 0
This phone number is popular with other OnStar customers, but be sure to follow the 6 steps further down.
8 mins average hold time
call 24 hours, 7 daysopen now
#1 of 1 OnStar phone numbers
#1 overall of 3 ways to contact OnStar
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