60
SAFETY
(Continued)
vehicle will roll down the hill. The system will
release brake pressure in proportion to the
amount of throttle applied as the vehicle starts
to move in the intended direction of travel.
HSA Activation Criteria
The following criteria must be met in order for
HSA to activate:
Vehicle must be stopped
Vehicle must be on a 6% (approximate) grade
or greater hill
Gear selection matches vehicle uphill direc
-
tion (i.e., vehicle facing uphill is in forward
gear; vehicle backing uphill is in REVERSE (R)
gear)
HSA will work in REVERSE and all forward gears
when the activation criteria have been met. The
system will not activate if the vehicle is placed
in NEUTRAL (N) or PARK (P).
Towing With HSA
HSA will also provide assistance to mitigate roll
back while towing a trailer.
Traction Control System (TCS)
The Traction Control System (TCS) monitors the
amount of wheel spin of each of the driven
wheels. If wheel spin is detected, brake
pressure is applied to the slipping wheel(s) and
engine power is reduced, to provide enhanced
acceleration and stability. A feature of the TCS
system, Brake Limited Differential (BLD),
functions similar to a limited slip differential
and controls the wheel spin across a driven
axle. If one wheel on a driven axle is spinning
faster than the other, the system will apply the
brake of the spinning wheel. This will allow more
engine torque to be applied to the wheel that is
not spinning. This feature remains active even if
the ESC is in the “Partial Off” mode.
WARNING!
There may be situations on minor hills with a
loaded vehicle, or while pulling a trailer, when
the system will not activate and slight rolling
may occur. This could cause a collision with
another vehicle or object. Always remember
the driver is responsible for braking the
vehicle.
WARNING!
If you use a trailer brake controller with your
trailer, the trailer brakes may be activated
and deactivated with the brake switch. If
so, there may not be enough brake pres
-
sure to hold both the vehicle and the trailer
on a hill when the brake pedal is released.
In order to avoid rolling down an incline
while resuming acceleration, manually acti
-
vate the trailer brake or apply more vehicle
brake pressure prior to releasing the brake
pedal.
HSA is not a parking brake. Always apply
the parking brake fully when exiting your
vehicle. Also, be certain to place the trans
-
mission in PARK.
Failure to follow these warnings can result
in a collision or serious personal injury.
WARNING!
(Continued)
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