| Subject: | Proper Connection Information to Avoid Blown 125 Amp Fuse and Various Interior  Electrical System Conditions When Jump Starting Vehicle | 
| Models: | 2004-2007 Buick Rainier | 
 | 2002-2007 Chevrolet TrailBlazer, TrailBlazer EXT | 
 | 2002-2007 GMC Envoy, Envoy XL | 
 | 2002-2004 Oldsmobile Bravada | 
 
This bulletin is being revised to add models and model years. Please discard Corporate Bulletin Number 04-06-03-005 (Section 06 - Engine/Propulsion System).
It has been found that some dealers may be using the IP battery positive stud  at the underhood fuse block to jump start the vehicle. This bulletin is being issued  to inform dealers that investigation has indicated the 125 amp mega fuse (no. 48)
located in the engine compartment fuse block may be blown resulting in various  electrical system conditions due to using this improper connection. To properly jump  start the vehicle, you must always use the following connections.
For the positive connection, use the battery terminal.
For the negative connection, use the remote terminal located on the front engine  lift bracket (marked "GND").
Do NOT attach the positive jumper cable to the stud located under  the engine compartment fuse block cover. Doing so may blow the fuse resulting in various  interior electrical system conditions.