Buick LESABRE 1996 Manual page 185

And, if you do have a heavy load, you should spread
it out. Don't carry more than 176 lbs. (80 kg) in
your trunk.
I
A
.CAUTION:
Do not load your vehicle any heavier than the
GVWR, or either the maximum front or rear
GAWR. If
you do, parts on your vehicle can break,
or it can change the way your vehicle handles.
These could cause you to lose control. Also,
overloading can shorten the life of your vehicle.
NOTICE:
Your warranty does not cover parts or
components that fail because of overloading.
If you put things inside your vehicle -- like suitcases,
tools, packages, or anything else -- they will go as fast
as the vehicle goes. If you have to stop or turn quickly,
or if there is a crash, they'll keep going.
Things you put inside your vehicle can strike
and injure people in
a
sudden stop
or
turn, or
in a crash.
Put things in the trunk of your vehicle. In a
trunk, put them as far forward as you can.
Try to spread the weight evenly.
inside the vehicle so that some of them are
above the tops of the seats.
Don't leave an unsecured child restraint in
your vehicle.
When you carry something inside the
vehicle, secure it whenever you can.
Never stack heavier things, like suitcases,
Electronic Level Control (Option)
This feature keeps the rear of your vehicle level as the
load changes. It is automatic
--
you do not need to
adjust anything.