Buick 2004 Century Owner's Manual page 258

5-46
7. Do not let the other
end touch metal.
Connect it to the
positive (+) terminal
of the good battery.
Use a remote
positive (+) terminal
if the vehicle has one.
Do not let the other end touch anything until the
next step. The other end of the negative ( ) cable
does not go to the dead battery. It goes to a
heavy, unpainted metal part, or to the remote
negative ( ) terminal on the vehicle with the dead
battery.
8. Now connect the
negative ( ) cable to
the negative ( )
terminal of the good
battery. Use a remote
negative ( ) terminal
if the vehicle has one.