Thread: OnStar Backup Battery 2004 H2
View Single Post
  #3  
Old 12-05-2010, 02:42 AM
Easy Ed Easy Ed is offline
Hummer Authority
  
Join Date: Oct 2003
Posts: 1,118
Easy Ed is an unknown quantity at this point
Default Re: OnStar Backup Battery 2004 H2
Cannot find anything about a battery for OnStar in the 2003 service manual
Reply With Quote