GMC 2012 Sierra Denali Owner's Manual page 271

WARNING
Do not load the vehicle any
heavier than the Gross
Vehicle Weight Rating
(GVWR), or either the
maximum front or rear Gross
Axle Weight Rating (GAWR).
This can cause systems to
break and change the way the
vehicle handles. This could
cause loss of control and a
crash. Overloading can also
shorten the life of the vehicle.
Notice: Overloading the
vehicle may cause damage.
Repairs would not be covered
by the vehicle warranty. Do
not overload the vehicle.
Using heavier suspension
components to get added
durability might not change the
vehicle's weight ratings. Ask
your dealer to help you load
your vehicle the right way.
If things are put inside your
vehicle like suitcases,
tools, packages, or anything
else they go as fast as the
vehicle goes. If you have to stop
or turn quickly, or if there is a
crash, they will keep going.
WARNING
Things you put inside the
vehicle can strike and injure
people in a sudden stop or
turn, or in a crash.
Put things in the cargo
area of the vehicle. Try to
spread the weight evenly.
Driving and Operating
WARNING (Continued)
Never stack heavier
things, like suitcases,
inside the vehicle so that
some of them are above
the tops of the seats.
Do not leave an
unsecured child restraint
in the vehicle.
When you carry something
inside the vehicle, secure
it whenever you can.
Do not leave a seat folded
down unless you need to.
There is also important loading
information for off-road driving in
this manual. See Loading
(Continued)
Your Vehicle for Off-Road
Driving under Off-Road Driving
on page 9 6.
9-21