GMC 1995 Safari Owner's Manual page 174

2.
3.
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.
You could be injured if the vehicles roll. Set the parking brake firmly
on each vehicle. Put an automatic transmission in PARK (P) or a
manual transmission in NEUTRAL (N). If you have a
four-wheel-drive vehicle with a manual transfer case shift lever, be
sure the transfer case is not in NEUTRAL (N).
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!
NOTICE:
If you leave your radio on, it could be badly damaged. The
repairs wouldn't be covered by your warranty.
4. Open the hoods and locate the batteries. Find the positive
(+) and
negative
(-)
terminals on each battery.
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
(+)
and negative
(-)
will go to
negative
(-)
or a metal engine part. Don't connect (+) to (-) or you'll
get a short that would damage the battery and maybe other parts too.
5-4