GMC 2006 Sierra 1500 Pickup Owner's Manual page 468

10. 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 of the vehicle with the
dead battery, or to a remote negative (–) terminal if
the vehicle has one.
V8 engine shown, other
engines similar
See Engine Compartment Overview on page 5-14
for the location of your vehicle's remote negative ( )
terminal.
5-56
11. Connect the other end
of the negative ( )
cable to the remote
negative ( ) terminal,
marked GND, on the
vehicle with the
dead battery.
12. Now start the vehicle with the good battery and run
the engine for a while.
13. 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.