Buick 2007 LaCrosse Owner's Manual page 388

5. Check that the jumper cables do not have
loose or missing insulation. If they do, you
could get a shock. The vehicles could
be damaged too.
Before you connect the cables, here are some
basic things you should know. Positive (+)
will go to positive (+) or to a remote positive (+)
terminal if the vehicle has one. Negative will
go to a heavy, unpainted metal engine part or
to a remote negative ( ) terminal if the
vehicle has one.
Notice: If you connect a negative cable to the
Engine Control Module (ECM), ECM mounting
bracket or any cables that attach to the
ECM bracket, you may damage the ECM.
Attach the negative cable to a heavy, unpainted
metal engine part, other than the ECM, ECM
bracket or cables attached to the ECM bracket.
Do not connect positive (+) to negative ( ), or
you will get a short that would damage the
battery and maybe other parts too. And do
not connect the negative ( ) cable to the
negative ( ) terminal on the dead battery
because this can cause sparks.
388
3.8L V6 Engine shown, 3.6L V6 Engine similar
6. Connect the red positive (+) cable to the
positive (+) terminal location on the vehicle
with the dead battery. Use a remote
positive (+) terminal if the vehicle has one.