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TRACTION CONTROLY
The Traction Controly system helps maintain the stability and steerability of
your vehicle. It is especially useful on slippery and/or hilly road surfaces. The
system operates at all speeds by detecting and controlling wheel spin. The
system borrows many of the electronic and mechanical elements already
present in the anti-lock braking system (ABS).
Wheel-speed sensors allow excess rear wheel spin to be detected by the
Traction Controly portion of the ABS computer. Any excessive wheel
spin is controlled by automatically applying and releasing the rear brakes
in conjunction with engine torque reductions. Engine torque reduction is
realized via the fully electronic spark and fuel injection systems. This
process is very sensitive to driving conditions and very fast acting. The
rear wheels “search” for optimum traction several times a second and
adjustments are made accordingly.
The Traction Controly system will allow your vehicle to make better use
of available traction on slippery surfaces. The system is a driver aid
which makes your vehicle easier to handle primarily on snow and ice
covered roads. This is especially evident if wheel spin-up should occur
while turning.
During Traction Controly operation you may hear an electric motor type
of sound coming from the engine compartment and the engine will not
“rev-up” when you push further on the accelerator. This is normal
system behavior.
If you should become stuck in snow
or on a very slippery road surface,
try switching the Traction Controly
system off. This may allow excess
wheel spin to “dig” the vehicle out
or enable a successful “rocking”
maneuver.
If the Traction Controly system is
cycled excessively, the brake portion
of the system will shut down to
prevent the rear brakes from
overheating. A limited Traction Controly function using only engine
torque reduction will still help control wheels from over-spinning. When
the rear brakes have cooled down, the system will again function
normally. Anti-lock braking is not affected by this condition and will
function normally during the cool down period.
OFF
TRAC
Driving
164
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