Oldsmobile 2003 Silhouette Owner's Manual page 353

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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.
Be sure the battery has enough water. You
don't need to add water to the ACDelco@ battery
installed in your new vehicle. But if a battery
has filler caps, be sure the right amount of fluid
is there. If it is low, add water to take care of
that first. If you don't, explosive gas could be
present.
Battery fluid contains acid that can burn you.
Don't 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.
Fans or other moving engine parts can injure
you badly. Keep your hands away from moving
parts once the engine is running.
5. Check that the jumper cables don't 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.
Don't connect positive (+) to negative (-) or you
will get a short that would damage the battery and
maybe other parts, too. And don't connect the
negative (-) cable to the negative (-) terminal on
the dead battery because this can cause sparks.
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