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5. Driving guide
NOTE
●
When the HDC has a fault, the function
is deactivated and a graphic prompt
is displayed on the instrument cluster
display with an audible alarm lasting
for about 5 s. In this case, HDC cannot
work properly, and the driver should
depress the brake pedal for deceleration
instead of trying to use the system to
go down a steep slope. In addition,
the driver should go to the GAC Motor
authorized shop for inspection and
repair as soon as possible.
●
In some special environments, the HDC
enters the thermal protection mode due
to too high braking temperature. For
example, when the system operates
at a high ambient temperature for
a long time, the temperature of the
brake system constantly increases
due to friction. When the upper limit
of temperature has been reached, the
HDC enters the thermal protection
mode (i.e., the HDC function is active
but inoperative) and is temporarily
deactivated, and the vehicle shows
signs of acceleration. When the
temperature of the brake system drops
to the level where the brake system can
work effectively, HDC resumes normal
operation.
5.3.5 HBC
When the vacuum booster fails, the HBC can
compensate for the temporary low vacuum
pressure caused by the vacuum failure and
increase the brake pressure. At the same time,
an alarm message will be displayed on the
instrument cluster. Please contact the GAC
Motor authorized shop for inspection and
repair as soon as possible.
will be shown on the instrument cluster
display. If the HDC is faulty, the buzzer
will sound, and an alarm message reading
“Please check HDC” will be shown on the
instrument cluster display.
-
Press the button again to deactivate the
HDC, and then the indicator lamp
goes out.
If the HDC function has been activated, the
vehicle runs and maintains at the speed of at
least 8 km/h while going downhill.
In addition, the driver can adjust the vehicle
speed by depressing the accelerator pedal or
the brake pedal. If the vehicle speed is within
8-35 km/h when the pedal is released, HDC
will be activated again to keep the vehicle
going downhill at the current speed.
-
When the vehicle speed is higher than 60
km/h, HDC is automatically deactivated.
-
W h e n t h e H D C i s a c t i v e , E S P
automatically intervenes in driving if the
wheels slip excessively.