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CONTROLS AND INSTRUMENTS
CAUTION
When the engine is not in operation, the brake system air pressure is low or
the battery voltage is low, do not use the HSA because its ability to retain the
brakes applied is decreased.
Use the parking brake when stopping the vehicle on a slope of an 8% or more
gradient if the vehicle is loaded up to the rating limit.
When the parking brake lever is pulled up while the HSA is activated, the HSA
is automatically cancelled.
Even with HSA active, the stop lights go out when you release the brake pedal.
When stopping the vehicle for an extended period, set the parking brake rather
than relying on the HSA.
On a snowy, icy or otherwise slippery road, press the HSA OFF switch to turn
off the HSA power and do not use the HSA. When the wheels are locked while
driving at a speed as low as approximately 20 km/h (12 MPH), the HSA may be
activated and the wheels may stay locked.
Release the brake pedal slowly after activating the HSA. If you release the
pedal suddenly, the system's brake force level setting may be lowered, causing
the vehicle to move down a slope.
When the vehicle is brought to a stop by strongly depressing the brake pedal
or with the wheels locked, the HSA may become temporarily inoperative. If this
occurs, hold the vehicle in position by setting the parking brake or keeping the
brake pedal depressed.
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