Buick RIVIERA 1993 Manual page 191

7. Don't let the other
end touch metal.
Connect it to the
positive
(+)
terminal
of
the
good battery. Use a
remote positive (+)
terminal if the
vehicle has one.
8. Now connect the
black negative
(-)
cable to the good
battery's negative
(-) terminal.
Don't let the other end touch anything until the nex
step. The other end of the negative cable doesn't go
to the dead battery. It goes to a heavy unpainted
metal part on the engine of the vehicle with the dead
battery.
189