Change due date

We'd be glad to assist you with changing your bill due date. To get started please send us a private message to OnStar_Support by selecting the envelope at the top right of the page. Please include your full name as it appears on your OnStar account and either your OnStar account number or VIN. By sending us a message, you consent to the information you provide being monitored and recorded by GM or those acting on GM’s behalf, subject to the GM Privacy Statement: https://www.gm.com/privacy-statement.