Onstar Communications
400 Renaissance Center
P.O. Box 400
Detroit, MI 48265-4000
Mail Code: 482-D39-B32
Name and Responsibilities
 Phone
Jocelyn Allen 313-665-2790
Vice President - Communications
Barb Cherep 313-665-2783
Communications
Jim Kobus 313-665-2791
Communications
Cristi Chojnacki 313-667-0874
Communications
Keith Yaden 313-667-0784
Communications
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