GMC 2007 Envoy Denali Owner's Manual page 426

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. Your vehicle
has a remote negative ( ) terminal, marked
GND, for this purpose.
4.2L L6 Engine
426
5.3L V8 Engine
The remote negative ( ) terminal is located on
the front engine lift bracket for the 4.2L L6
engine, and on the accessory drive bracket for
the 5.3L V8 engine.
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.