GMC SIERRA 2002 Manual page 333

CAUTION:
Fans or other moving engine parts can injure you
badly. Keep your hands away from moving parts
once the engine is running.
6. Check that the jumper cables don't 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 a remote positive terminal (+) if the
vehicle has one. Negative (
unpainted metal engine part or a remote negative (
terminal if the vehicle has one.
Don't connect positive (+) to negative (
get a short that would damage the battery and maybe
other parts too. And don't connect the negative (
-
cable to the negative (
because this can cause sparks.
On vehicles equipped with dual batteries, make all
battery connections to the remote positive (+) and
-
remote negative ( ) terminals.
5-6
-
) will go to a heavy,
-
) or you'll
-
) terminal on the dead battery
-
)
)
7. Connect the red
positive (+) cable to the
positive (+) terminal of
the vehicle with the dead
battery. Use a remote
positive (+) terminal if
the vehicle has one.