GMC YUKON XL 2003 Manual page 401

8. Now connect the black
negative (-) cable to
the good battery's
negative (-) cable. Use
a remote negative (-)
terminal if the
vehicle has one.
9. 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 part, or to the remote negative (-)
terminal on the vehicle with the dead battery.
IO. Connect the other end
of the negative (-)
cable to the
negative (-) terminal of
the dead battery or to a
remote negative (-)
terminal if the vehicle
has one.
1. Now start the vehicle with the good battery and run
the engine for a while.
12. Try to start the vehicle that had the dead battery. If
it won't start after a few tries, it probably needs
service.
Notice: Damage to your vehicle may result from
electrical shorting if jumper cables are removed
incorrectly. To prevent electrical shorting, take care
that the cables don't touch each other or any
other metal. The repairs wouldn't be covered by
your warranty.
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