Pontiac 2005 Bonneville Owner's Manual page 326

10. Now start the vehicle with the good battery and run
the engine for a while.
11. Try to start the vehicle that had the dead battery.
If it will not start after a few tries, it probably
needs service.
5-66
Your vehicle has a remote
negative ( ) terminal
marked GND ( ).
Notice: If the jumper cables are removed in the
wrong order, electrical shorting may occur and
damage the vehicle. The repairs would not be
covered by your warranty. Remove the jumper
cables in the correct order, making sure that the
cables do not touch each other or other metal.
Jumper Cable Removal
A. Dead Battery or Remote Positive (+) Terminal
B. Good Battery or Remote Positive (+) and Remote
Negative ( ) Terminals
C. Heavy, Unpainted Metal Engine Part or Remote
Negative ( ) Terminal (GND)