Fiat 500X Owner's Handbook Manual page 64

System intervention
The intervention of the system is
indicated by the flashing of the
warning light on the instrument
panel, to inform the driver that
the vehicle is in critical stability and grip
conditions.
38) 39) 40) 41) 42)
TC (Traction Control)
SYSTEM
The system automatically operates in
the event of slipping, loss of grip on wet
roads (aquaplaning) and acceleration
on slippery, snowy or icy roads, etc. on
one or more drive wheels. Depending
on the slipping conditions, two different
control systems are activated:
❒ if the slipping involves both drive
wheels, the system intervenes,
reducing the power transmitted by the
engine;
62
❒ if the slipping only involves one of the
drive wheels, the BLD (Brake Limited
Differential) function is activated,
automatically braking the wheel which
is slipping (the behaviour of a
self-locking differential is simulated).
This will increase the engine torque
transferred to the wheel which isn't
slipping. This function remains active
even if the "Systems partially disabled"
and "Systems disabled" modes are
selected (see description in the
following pages).
System intervention
The intervention of the system is
indicated by the flashing of the
warning light on the instrument
panel, to inform the driver that
the vehicle is in critical stability and grip
conditions.
43) 44) 45) 46) 47)
PBA (Panic Brake
Assist) SYSTEM
The PBA system is designed to
improve the vehicle's braking capacity
during emergency braking.
The system detects emergency braking
by monitoring the speed and force
with which the brake pedal is pressed,
and consequently applies the optimal
brake pressure. This can reduce the
braking distance: the PBA system
therefore completes the ABS.
Maximum assistance from the PBA
system is obtained by pressing the
brake pedal very quickly. In addition,
the brake pedal should be pressed
continuously during braking, avoiding
intermittent presses, to get the most
out of the system. Do not reduce
pressure on the brake pedal until
braking is not necessary anymore.
The PBA system is deactivated when
the brake pedal is released.
48) 49) 50)
HHC (Hill Hold Control)
SYSTEM
This is an integral part of the ESC
system and facilitates starting on
slopes, activating automatically in the
following cases:
❒ uphill: vehicle stationary on a road
with a gradient higher than 5%, engine
running, brake pressed and
transmission in neutral or gear other
than reverse engaged;