Buick RIVIERA 1993 Manual page 189

I A
CAUTION:
u could be injured if the vehicles roll. Set the
arking brake firmly on each vehicle. Put an
utomatic transaxle in "P" (Park) or a manual
axle
in
"N" (Neutral).
P
3. Turn o f f the ignition on both vehicles. Turn o f f all
lights that aren't needed, and radios. This will avoid
sparks and help save both batteries. And it could
save your radio!
4. Open the hoods and locate the batteries.
I
A
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.
~~
Find the positive
.(+)
and negetive
(-),
terminals on
each battery.