GMC Yukon 2007 Owner's Manual page 498

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 the remote negative (−)
terminal on the vehicle with the dead battery.
498
6. 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.
9. Connect the other end of the negative (−)
cable to the remote negative (−) terminal,
on the vehicle with the dead battery.
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.