Pontiac 2007 G5 Owner's Manual page 308

11. Try to start the vehicle that had the dead
battery. If it will not start after a few tries, it
probably needs service.
Notice: If the jumper cables are connected or
removed in the wrong order, electrical shorting
may occur and damage the vehicle. The repairs
would not be covered by your warranty. Always
connect and remove the jumper cables in the
correct order, making sure that the cables do
not touch each other or other metal.
308
Jumper Cable Removal
A. Heavy, Unpainted Metal Engine Part or
Remote Negative ( ) Terminal (GND)
B. Good Battery or Remote Positive (+) and
Remote Negative ( ) Terminals
C. Dead Battery or Remote Positive (+) Terminal