OnStar Phone Number

The number and steps below are voted #1 of 1 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.
9 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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