GMC CHEVROLET Silverado 6500HD 2019 Owner's Manual page 347

346 Vehicle Care
Warning
Fans or other moving engine
parts can injure you badly. Keep
your hands away from moving
parts once the engine is running.
6. Check that the jumper cables
do not have loose or missing
insulation. If they do, you could
get a shock. The vehicles
could be damaged too.
Before you connect the cables,
here are some basic things you
should know. Positive (+) will
go to positive (+) or to a remote
positive (+) terminal if the
vehicle has one. Negative ( )
will go to the vehicle frame or
the battery negative ( ) under
the battery cover.
Do not connect positive (+) to
negative ( ) or you will get a
short that would damage the
battery and maybe other
parts too.
7. Remove the battery cover (2)
by disengaging the battery
cover retaining straps (1).
8. Connect one end of the red
positive (+) cable to the remote
positive (+) terminal (1) of the
vehicle with the discharged
battery.
9. Do not let the other end touch
metal. Connect it to the
positive (+) terminal (2) of the
good battery. Use a remote
positive (+) terminal if the
vehicle has one.
10. Connect one end of the black
negative ( ) cable to the
negative ( ) terminal (4) 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.
11. Connect the other end of the
negative ( ) cable to a
negative grounding point (3) on
the battery negative terminal or
on the vehicle frame.
12. Start the vehicle with the good
battery and run the engine for a
while.
13. Try to start the vehicle that had
the dead batteries. 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
(Continued)