Geo PRIZM 1993 Manual page 186

Problems on the Road
NO TIC€
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184
To Jump
Start
Your
Geo:
1. Check the other vehicle. It must have
a 12-volt battery with a negative
ground system.
If the other system isn't a 12-volt
system with a negative ground,
both vehicles can be damaged.
I
2. Get the vehicles close enough
so
the
jumper cables can reach, but be sure
the vehicles aren't touching each
other. If they are, it could cause a
ground connection you don't want.
You wouldn't be able to start your
Geo, and the bad grounding could
damage the electrical systems.
A
You could be injured if the
vehicles roll. Set the parking
brake firmly
on
each vehicle. Put
an automatic transaxle in
P
(Park)
or a manual transaxle in
Neutral.
3.
Turn off the ignition
on
both
vehicles. Turn off all lights that
aren't needed, and radios. This will
avoid sparks and help save both
batteries. And it could save your
radio!
If you leave a radio on, it could be
badly damaged. The repairs
wouldn't be covered by
your
warranty.