Buick 2002 LeSabre Owner's Manual page 249

10. Now start the vehicle with the good battery and run
the engine for a while.
11. Try to start the vehicle that had the dead battery.
If it won't start after a few tries, it probably
needs service.
5-8
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.
NOTICE:
Damage to your vehicle may result from
electrical shorting if jumper cables are removed
incorrectly. To prevent electrical shorting, take
care that the cables don't touch each other or any
other metal. The repairs wouldn't be covered by
your warranty.