GM Solicitation Issues:
Contact GBS Support:
gmsolihelp@gm.com

TMSII Application Related Issues:
Contact MIC Support:
Phone: +1 313-263-4912
gmsupport@mic-cust.com
Please Note: Emails are monitored Monday - Friday.
For urgent issues, please call the phone number listed.

Missing Data and Country Communications Issues:
Contact GM IT:
Phone: +1 313-667-3264
TaxIT@gm.com
Please Note: Emails are monitored 7:30 AM - 4:30 PM ET Monday - Friday.
For urgent issues outside these hours, or on GM holidays, please call the phone number listed.