Affected Component: ELECTRICAL SYSTEM:SOFTWARE

Date Published
JAN 01, 2011
NHTSA TSB #
10037553
TSB Document
  • Sorry, the NHTSA has not posted this TSB document yet.

You can still get the detailed info from Hummer for this TSB. Call your local Hummer dealer's service department & ask for a copy of TSB# 08-08-46-008C.

Summary
GM: THERE ARE MULTIPLE CONCERNS WITH THE ONSTAR SYSTEM. IT IS NOT WORKING CORRECTLY AND THE BATTERY MAY DRAIN. *RM