GMC C series 2002 Owner's Manual page 176

10. Now start the vehicle with the good battery and run
the engine for one to two minutes. If your vehicle
has the high idle option, use it.
9. Connect the other end of
-
the negative ( ) cable at
least 18 inches (45 cm)
away from the dead
battery, but not near
engine parts that
move. The electrical
connection is just as
good there, and the
chance of sparks
getting back to the
battery is much less.
11. Try to start the vehicle with the dead battery.
If it won't start after a few tries, it probably
needs service.
NOTICE:
Damage to your vehicle may result from
electrical shorting if jumper cables are removed
incorrectly. To prevent electrical shorting,
take care that they don't touch each other or
any other metal. The repairs wouldn't be covered
by your warranty.
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