GMC Yukon XL Denali Owner's Manual page 400

10-84 Vehicle Care
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.
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 the vehicle 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.
Jumper Cable Removal
A. Heavy, Unpainted Metal Engine
Part or Remote Negative ( )
Terminal
B. Good Battery or Remote
Positive (+) and Remote
Negative ( ) Terminals
C. Dead Battery or Remote
Positive (+) Terminal