Hummer 2006 H3 - Manual (Page 314)

6. Connect the red positive (+) cable to the positive (+)
terminal of the dead battery. Use a remote
positive (+) terminal if the vehicle has one.
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.
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.
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 engine part, or to a remote
negative (
−
) terminal on the vehicle with the
dead battery.
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.
Your vehicle has a remote negative (
−
) terminal,
marked GND (Ground), for this purpose.
10. Now start the vehicle with the good battery and run
the engine for a while.
11. Try to start the vehicle that had the dead battery.
If it will not start after a few tries, it probably needs
service.
Notice: If the jumper cables are connected or
removed in the wrong order, electrical shorting may
occur and damage the vehicle. The repairs would
not be covered by your warranty. Always connect
and remove the jumper cables in the correct
order, making sure that the cables do not touch
each other or other metal.
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