OPERATING THE BRAKE SYSTEM
4
• There are mechanical problems
with suspension leveling of the
tractor or trailer resulting in uneven
loads.
• The vehicle is maneuvering on a
high banked road creating either
additional side forces due to the
weight (mass) of the vehicle or a
deviation between expected and
actual yaw rates.
• Gusty winds are strong enough
to cause signicant side forces
on the vehicle and any towed
vehicles.
To
Maximize the Effectiveness of
ESP
• Loads must be properly secured
and evenly distributed at all times.
• Drivers need to exercise extreme
caution at all times, and avoid
sharp turns, sudden steering
inputs or abrupt lane changes at
high speeds, particularly if:
a. the vehicle
hauls loads that
could shift,
b. the vehicle
or load has a high
or off-set center of gravity
(CG) when loaded, or
c. the vehicle
tows doubles or
triples.
Truck
Chassis Modications
The ESP
system was specically
calibrated and validated only for
your vehicle’s original factory-built
conguration. If your vehicle’s chassis
components are altered (for example;
a wheelbase extension or reduction,
tag axle addition or removal, tractor to
truck conversion or steering system
component change) the ESP system
must be disabled immediately by a
qualied mechanic.
WARNING!
Failure to disable ESP “Electronic Sta-
bility Program” when modifying a vehi-
cle could result in a loss of vehicle con-
trol possibly resulting in an accident in-
volving death or personal injury.
4-28 Y53-6047–2C (04/13)
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