operators_manual

WARNING
Exercise extreme care when towing
doubles
or triples with a vehicle equip-
ped with Electronic Stability Program.
Excessive speed and aggressive ma-
neuvers, such as sharp turns, sudden
steering inputs or abrupt lane changes
should be avoided because these ma-
neuvers could cause loss of vehicle
control possibly resulting in an acci-
dent involving death or personal injury.
Additionally, the ESC stability system’s
ef
fectiveness may be greatly reduced if:
• The load shifts due to improper
retention, accident damage or the
inherently mobile nature of some
loads (for example, hanging meat,
live animals or partially laden
tankers).
• The vehicle has an unusually high
or offset center of gravity (CG).
• One side of the vehicle drops off
the pavement at an angle that is
too large to be counteracted by a
reduction in speed.
• The vehicle is used to haul double
or triple trailer combinations.
• If very rapidly winding steering
inputs are inputted at high speeds.
•
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 significant side forces on the
vehicle and any towed vehicles.
To maximize the effectiveness of ESC:
• 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:
• The vehicle hauls loads that
could shift
• The vehicle or load has a high
or offset center of gravity (CG)
when loaded
• The vehicle tows doubles or
triples
The ESC system was specifically
calibrated and validated only for your
vehicle’s original factory-built configuration.
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
ESC system must be disabled immediately
by a qualified mechanic.
WARNING
Failure to disable ESC "Electronic Sta-
bility
Control" when modifying a vehi-
cle could result in a loss of vehicle
control possibly resulting in an acci-
dent involving death or personal injury.
DRIVING - Brakes
Y53-6110-1A1 (01/21) 167
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