GMC 2004 Sonoma Owner's Manual page 288

Don't let the other end touch anything until the next
step. The other end of the negative (-) cable
doesn't go to the dead battery. It goes to a heavy,
unpainted metal engine part, or to a remote
negative (-) terminal on the vehicle with the dead
battery.
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8. Now connect the black
negative (-) cable to
the negative (-)
terminal of the good
battery. Use a remote
negative (-) terminal
if the vehicle has one.
9. Connect the other end of the negative (-) 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, and
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 that had the dead battery. If
it won't start after a few tries, it probably needs
service.
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.