GMC Sierra 2000 Owner's Manual page 242

9. Now connect the
Don't let the other end touch anything until the next
step. The other end of the negative (
go to the dead battery. It goes to a heavy unpainted
metal part of the vehicle with the dead battery.
-
black negative ( )
cable to the
good battery's
-
negative ( ) cable.
-
) cable doesn't
Attach the cable at least 18 inches (45 cm) away
from the dead battery, but not near engine parts that
move. The electrical connection is just as good
there, but the chance of sparks getting back to the
battery is much less.
10. Now start the vehicle with the good battery and run
the engine for awhile.
11. Try to start the vehicle with the dead battery.
If it won't start after a few tries, it probably
needs service.
5-7