Pontiac 1999 Grand Prix, Owner'S Manual

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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 vehicle, and the bad grounding could
damage the electrical systems.
To avoid the possibility of the vehicles rolling, set
the parking brake firmly on both vehicles involved in
the jump starting procedure. Put an automatic
transaxle in PARK (P) before setting the
parking brake.
3. Turn off the ignition on both vehicles. Turn off the
radio and all lamps that aren’t needed. This will
avoid sparks and help save both batteries. And it
could save your radio!
NOTICE:
If you leave your radio on, it could be badly
damaged. The repairs wouldn’t be covered by
your warranty.
CAUTION:
An electric fan can start up even when the engine
is not running and can injure you. Keep hands,
clothing and tools away from any underhood
electric fan.
4. Find the positive (+) and negative (
-
) terminals on
each battery. Your vehicle has a remote positive (+)
jump starting terminal. The terminal is on the same
side of the engine compartment as your battery. You
should always use the remote positive (+) terminal
instead of the positive (+) terminal on your battery.