Verify Minutes and Expiration

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

    See also:

    Underbody Maintenance
    Use plain water to flush dirt and debris from the vehicle's underbody. Your dealer or an underbody car washing system can do this. If not removed, rust and corrosion can develop. ...

    Using Cruise Control on Hills
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    Cruise Control Messages
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