GMC Cadillac CT5 2021 Manual page 370

Caution (Continued)
by the vehicle warranty. Whenever
possible, turn off or unplug all
accessories on either vehicle when
jump starting.
4. Turn the ignition off. Turn off all
lights and accessories in both
vehicles, except the hazard warning
flashers if needed.
Warning
An electric fan can start up even
when the engine is not running and
can injure you. Keep hands,
clothing, and tools away from any
underhood electric fan.
Warning
Using a match near a battery can
cause battery gas to explode. People
have been hurt doing this, and
some have been blinded. Use a
flashlight if you need more light.
Warning (Continued)
Battery fluid contains acid that can
burn you. Do not get it on you.
If you accidentally get it in your
eyes or on your skin, flush the place
with water and get medical help
immediately.
Warning
Fans or other moving engine parts
can injure you badly. Keep your
hands away from moving parts
once the engine is running.
5. Connect one end of the red
positive (+) cable to the remote
positive (+) terminal on the
discharged battery.
6. Connect the other end of the red
positive (+) cable to the positive (+)
terminal of the good battery.
7. Connect one end of the black
negative ( ) cable to the
negative ( ) terminal of the good
battery.
VEHICLE CARE
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.
8. Connect the other end of the black
negative ( ) cable to the
negative ( ) grounding point for the
discharged battery.
9. Start the engine in the vehicle with
the good battery and run the
engine at idle speed for at least
four minutes.
10. 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
369