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Fleet Contact UsOnStar subscribers can push the blue OnStar button at any time to speak to a trained Advisor. Advisors are also available 24 hours a day, 7 days a week, at 1.888.4.ONSTAR (1.888.466.7827) to answer questions or assist your drivers with Remote Door Unlock, Stolen Vehicle Location Assistance, or renewal requests. For questions and additional information on how OnStar can enhance your Fleet and commercial vehicles, call OnStar Fleet & Commercial Operations at 313.667.0902 or 313.667.0903. By telephone: OnStar Fleet & Commercial Operations 313.667.0902 313.667.0903 OnStar Customer Care 1.888.4.ONSTAR (1.888.466.7827) Monday-Friday, 6 a.m.-1 a.m. EST TTY Number 1.877.248.2080 By email: Contact us via email Sign up for our mailing list Share your service ideas with us TTY users: Contact us via email By mail: OnStar Fleet & Commercial Operations Attn: Jim Walenczak 400 Renaissance Center P.O. Box 400 482-D33-C32 Detroit, MI 48265-4000 |
