OnStar Phone Number

Customer Service
7 mins average wait
24 hours, 7 daysOpen
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And here are some reasons that other OnStar customers called 888-466-7827 recently:

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Here are some things that other customers said after calling 888-466-7827 and talking to a OnStar customer service agent:

More OnStar 800 numbers and support

This is the best of 3 ways to contact OnStar according to 144125 GetHuman users. Below you can compare the ways to contact OnStar customer service.
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