GMC Yukon/Yukon XL/Denali Owner Manual (GMNA-Localizing-U.S./
Canada/Mexico-13690468) - 2021 - CRC - 2/18/20
Vehicle Care
371
vehicle has one. Negative (
−
) will go to a
heavy, unpainted metal engine part or to
a remote negative (
−
) terminal if the
vehicle has one.
Do not connect positive (+) to negative
(
−
) or you will get a short that would
damage the battery and maybe other
parts too. And do not connect the
negative (
−
) cable to the negative (
−
)
terminal on the dead battery because
this can cause sparks.
7. Connect one end of the red positive (+)
cable to the remote positive (+) terminal
of the vehicle with the discharged
battery.
8. 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.
9. Connect one end of 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.
10. Connect the other end of the negative
(
−
) cable to the remote negative (
−
)
terminal to the discharged battery.
11. 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 will not start after a
few tries, it probably needs service.
Caution
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
Reverse the sequence exactly when
removing the jumper cables.
After starting the disabled vehicle and
removing the jumper cables, allow it to idle
for several minutes.
Towing the Vehicle
Caution
Incorrectly towing a disabled vehicle may
cause damage. The damage would not be
covered by the vehicle warranty. Do not
lash or hook to suspension components.
Use the proper straps around the tires to
secure the vehicle. Do not drag a locked
wheel/tire. Use tire skates or dollies
under any locked wheel/tire while
loading the vehicle. Do not use a sling
type lift to tow the vehicle. This could
damage the vehicle.
Caution
Improper use of the tow eye can damage
the vehicle. If equipped, use the tow eye
to load a disabled vehicle onto a flatbed
tow truck from a flat road surface, or to
move the vehicle a short distance. Use
caution and low speeds. The transmission
must be in (N) Neutral when moving the
vehicle.
