Buick LaCrosse Owner's Manual page 437

To disconnect the jumper cables
from both vehicles:
1. Disconnect the black
negative ( ) cable from the
vehicle that had the dead
battery.
2. Disconnect the black
negative ( ) cable from the
vehicle with the good battery.
3. Disconnect the red positive (+)
cable from the vehicle with the
good battery.
4. Disconnect the red positive (+)
cable from the other vehicle.
5. Return the caps over the
positive (+) and negative ( )
terminals to their original
positions.
Consult your dealer or a
professional towing service if the
disabled vehicle must be towed.
See
To tow the vehicle behind another
vehicle for recreational purposes,
such as behind a motor home, see
Recreational Vehicle Towing in this
section.
Recreational vehicle towing means
towing the vehicle behind another
vehicle such as a motor home. The
two most common types of
recreational vehicle towing are
known as dinghy towing and dolly
towing. Dinghy towing is towing the
vehicle with all four wheels on the
ground. Dolly towing is towing the
vehicle with two wheels on the
ground and two wheels up on a
device known as a dolly.
or
.