Alfa Romeo Tonale Owner's Handbook Manual page 103

DTV (Dynamic Torque Vectoring)
SYSTEM
The DTV system improves the car's
agility and stability by braking one wheel
on the rear axle and increasing engine
torque.
HBA (Hydraulic Brake Assist) SYSTEM
The HBA system increases the pressure
in the brake system to the ABS
activation level to minimise braking
distance.
HSA (Hill Start Assist) SYSTEM
It is an integral part of the ESC system
and facilitates starting on an incline.
54) 55)
AST (Alfa Steering Torque) SYSTEM
(where provided)
The AST function integrates the ESC
system with the electric power steering
to increase the safety level of the whole
car.
56)
ERM (Electronic Rollover Mitigation)
SYSTEM
The system monitors the tendency of
the wheels to rise from the ground if the
driver performs extreme manoeuvres
like quick steering to avoid an obstacle,
especially in poor road conditions.
If these conditions occur, the system
intervenes on the brakes and engine
power to reduce the possibility that the
wheels are raised from the ground. It is
not possible to avoid tendency to roll
over if the phenomenon is due to reasons
such as driving on high side gradients,
collision with objects or other cars.
57)
RAB (Ready Alert Braking) SYSTEM
It is a system that is activated
automatically if the accelerator is
released quickly, with the aim of
preparing the braking system by making
the response time quicker, thereby
reducing stopping distances in the event
of subsequent emergency braking.
TSC (Trailer Sway Control) SYSTEM
The system employs a series of sensors
located on the car to identify excessive
swerving of the trailer and take the
necessary precautions to eliminate it.
System intervention
When the system is active, the warning
light flashes on the instrument panel
the engine power is reduced and braking
can be felt on the individual wheels,
following the attempt to eliminate the
swerving of the trailer. The system is
active only with ESC engaged.
When the ESC system is deactivated
(by pressing the button on the central
tunnel), the TSC system is deactivated as
well.
58) 59)
DISABLING ACTIVE SAFETY SYSTEMS
Depending on the versions, there are
3 configurations for the active safety
systems on the car:
systems enabled
systems partially disabled
systems disabled
Systems enabled
All active safety systems are enabled.
This is the normal operating mode when
driving a four-wheel-drive car.
This mode should be used in most
driving conditions. The system will be in
"Systems enabled" mode every time the
motor is started.
WARNING You are advised to select
"Systems partially disabled" or "Systems
disabled" modes only for specific driving
requirements.
Systems disabled
Rotating the DNA™ selector on the
,
centre tunnel to OFF for a minimum
of 2 seconds will completely disengage
the following systems: ESC (Electronic
Stability Control), TC (Traction Control),
ASR (Anti-Spin Regulation), ERM
(Electronic Rollover Mitigation), TSC
(Trailer Sway Control), RAB (Ready Alert
Braking) and AST (Alfa Steering Torque)
(where provided). The other systems
remain enabled.
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