Towing The Vehicle - GMC Sierra Owner's Manual

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.
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 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.
Vehicle Care
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
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(Continued)