Verify Minutes and Expiration

Push OnStar Mobile App and say “minutes” then “verify” to check how many minutes remain and their expiration date.

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    General Information
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    Turn and Lane-Change Signals
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    Driver Information Center (DIC) (With DIC Buttons)
    If your vehicle has DIC buttons, the information below explains the operation of this system. The DIC displays information about your vehicle. It also displays warning messages if a system problem is ...