Webyou can manage your gm financial account through the gm financial app or online by going to www. gmfinancial. com and signing in to my account. There, you can make a. Weblog in to myaccount to make a payment, message us or update your account. Web• make a payment or set up auto pay. • see your payment options. • manage multiple accounts. This app does not support rooted devices. If you need help with gm financial. Webeasily make payments online through myaccount, by mail or over the phone. Webhow…