2008 Lancia Thesis turn signal

178
fig. 135
L0A0275b
fig. 134
L0A0274b
Fault indication
The system is controlled by an elec-
tronic control unit signalling possible
failures by turning on the s!warn-
ing light on the multifunction display
together with the message “EPB
FAULT - GO TO DEALER”.
For a higher safety, every time the
parking brake button is pressed dur-
ing a failure, a buzzer will sound to
draw the driver’s attention and the
xwarning light will turn on.
If the parking brake does not reach
the required working force (e.g.
when the battery is partially flat),
the instrument panel warning light
xstarts flashing.
In case of instrument panel warn-
ing light xfault, the s!warning
light on the multifunction display
turns on together with the message
“EPB INDICATOR FAULT - GO TO
DEALER” to informthe driver
about the dangerous situation. In case of failure indi-
cated by the related
warning light and mes-
sage turning on, drive carefully to
a Lancia Dealership because the
parking brake might not work.
Emergency disengagement
The electric parking brake is fitted
with an independent battery which
can be used to disengage the brake,
for instance when the car main bat-
tery is completely flat or it has bro-
ken after an accident.The additional battery, always
kept charged by a dedicated elec-
tronic control unit, can engage and
disengage the parking brake when it
is necessary to push manually the
car.
To engage and disengage the elec-
tric parking brake when the car
main battery is completely flat, turn
the key to MARand press the main
button on the central console.

188
If the failure is signalled when the
engine is started, it means that the
electronic control unit had stored it
previously, before stopping the
engine. Even in this case, go to a
Lancia Dealershipto have the
automatic gearbox checked.
When driving with auto-
matic gearbox faulty,
drive carefully consider-
ing the limited car efficiency in
terms of acceleration and speed.
In addition, when driving with
automatic gearbox faulty, the
reverse block might not be oper-
ating: for this reason it is
absolutely necessary to move the
lever to position R while the car
is moving.SOUND SIGNAL
A buzzer will sound in the follow-
ing conditions:
– for about 15 seconds when the
driver’s door is opened while the
engine is running or not and the gear
lever has a position different from P
– for about 15 seconds when the
engine is turned off and the gear
lever has a position different from P
– for about 4 seconds when the
gear lever is shifted to R(reverse)
– with the manual sequential oper-
ation on, when the selected gear is
not accepted by the electronic con-
trol unit (e.g. since it might generate
a runaway speed rate). BUMP STARTING
Never bump starting the engine (by
pushing, towing, etc.). In an emer-
gency, when the battery is flat, start
the engine with the appropriate
emergency battery according to the
instructions contained in chapter “In
an emergency”.

190
If the sensors detect the conditions
which might cause car skidding, the
ESP system affects the engine and
the brakes by generating a torque
which makes the car recover the
right driving direction.
The system operations,
in terms of safety, should
not make the driver run
useless risks. The driving behav-
iour must always be appropriate,
according to the conditions of the
road bed, visibility and traffic.
Anyway, the driver is held
responsible for a safe driving.
The ESP system helps the driver
control the car in case of tyre grip
loss, however the forces used by
the system to control the car sta-
bility still depend on the grip
ratio between tyres and road bed.ESP SYSTEM OPERATION
ESP is automatically started when
the car is started and it cannot be
disengaged. On the contrary, it is
possible to exclude the ASR system
by pressing the related button on the
central console.
The ESP main components are the
following:
– an electric-hydraulic control unit
processing signals coming from the
various sensors and choosing the
most appropriate strategy by operat-
ing solenoid valves and the engine
control unit;
– a sensor detecting the steering
wheel rotation angle;
– 4 sensors detecting the rotation
speed of each wheel;
– a sensor detecting the car rota-
tion around a vertical axis;
– a sensor detecting side accelera-
tion (centrifugal force).The ESP core is a sensor, of aero-
nautic origin, detecting the car rota-
tions around its vertical axis.
Centrifugal forces generated when
the car is cornering are detected by a
high-sensitive side acceleration sen-
sor.
The ESP stabilizing action is based
on the signals coming from the steer-
ing wheel rotation sensors, from the
side acceleration sensors and the
wheel speed sensors, thus recogniz-
ing the driving direction selected by
the driver when turning the steering
wheel.
The control unit processes each
information coming from the sensors
and is able to recognize every single
moment of the car position and to
compare it with the direction the
driver is willing to follow. In case of
discrepancy, the control unit
instantly selects and controls the
most appropriate actions to make
the car recover the required direc-
tion: it brakes with a different inten-
sity one or more wheels and, if nec-
essary, reduces the power supplied
by the engine. Corrections are con-

202
Detecting a vehicle with the
system switched on
When the system is switched on by
turning ring Bto (+),any vehicle run-
ning in front of the car (within 130
metres) and along the running path
will be signalled to the driver on the
instrument panel display, with the fol-
lowing icon:
set distancex
set distancexset distance
x
This icons indicate the engagement
of speed and distance control with de-
tection of a running vehicle along the
running path, “picked” by the system.
The three different icons indicate the
three distance levels the driver can se-
lect.
When the external temperature is
less than 3 °C, the system will auto-
matically be set to maintain a greater
distance from the vehicle ahead, re-
gardless of the distance set.
If the system is temporarily switched
off by pressing the accelerator pedal,
the stored speed will flash on the in-
strument panel and the distance con-
trol icon will disappear (if shown on
the instrument panel display). Theicon (if any) indicating the vehicle de-
tected on the traffic lane will, on the
contrary, remain visible.
With system active and car speed ex-
ceeding 80 km/h, switching the left
direction indicators on to signal over-
taking will cause the distance from
the vehicle ahead (already “picked”)
to be automatically decreased in or-
der to facilitate the manoeuvre. If the
driver does not overtake within a few
seconds, the car will return to the set
distance.
If the Radar Cruise Control is active
and the braking power enabled for
the function does not ensure the
maintenance of the set distance from
the vehicle ahead, a sound and visual
signal (together with message
“BRAKE SAFETY” shown on the

205
When reaching a steep cat's back
(fig. 153), the picked vehicle could
get out of the radar detection range
(thus missing "picking").The Radar Cruise Control
features proper strategies
to keep adequate comfort
level when travelling on a road
with curves, e.g.: reducing the
cruising speed if required. The
Radar Cruise Control however
cannot detect the road turn; the
driver is therefore the only re-
sponsible for adjusting the car
speed to curves, slip-road or
sharp-curves, not necessarily on
highway sections.
Whenever the picked ve-
hicle gets out of the radar
detection range, the car
will accelerate to return to the set
cruising speed.FAULT INDICATION
System anomalies are signalled by
the lighting of symbol àon the mul-
tifunction display, together with mes-
sage “RADAR CRUISE CONTROL
FAULT”. The fault indication re-
mains on even when system ring Ais
turned to OFF.
Whatever the system's fault, the
Radar Cruise Control is fully switched
off.
fig. 152
L0A0355b
fig. 153
L0A0356b

PARKING SENSOR
The parking sensor provides dis-
tance information to the driver when
the car moves near obstacles placed
in front of and behind it.
The information on the presence
and distance of obstacles is sent to
the driver by means of sound sig-
nals, the frequency of which
depends on the obstacle distance.
By integrating the direct visual
information with the sound signal
emitted by the system, the driver can
therefore avoid possible collisions.
208
The responsibility for
parking manoeuvres and
other dangerous manoeu-
vres always rests with the driver.
When performing such manoeu-
vres, always make sure that no
persons or animals stand in the
area where the car is to be
parked. The parking assist sys-
tem should be considered as an
aid to the driver; in any case,
greatest attention must be paid
when performing dangerous
manoeuvres, even at low speed.
The system front and rear sensors
are activated automatically when
engaging reverse with the ignition
key at MAR. Disengaging the
reverse gear will turn the rear sen-
sors off; front sensors will stay on
until 15 km/h speed is exceeded to
allow concluding the parking
manoeuvre.Front sensors can be switched on
by pressing button A(fig. 155)
placed on the central console in
front of the gear lever; when the
front sensors are on, warning light
Blights up on the button. To
switch the sensors off, press button
Aagain.
When the sensors are on, the sys-
tem starts sending out sound sig-
nals from the front or rear buzzers
as soon as an obstacle is detected;
the signal frequency increases as
the obstacle gets nearer. When the
obstacle is at a distance of less than
30 cm, a continuous sound is emit-
ted. Depending on the position of
the obstacle (in front or behind),
the sound will be emitted from the
corresponding buzzer (front or
rear). The sound signal will imme-
diately stop if the distance from the
obstacles increases. The tone cycle
remains the same if the distance
measured by the central sensors
does not change; however, if this
condition occurs with side sensors,
the signal will be interrupted after
about 3 seconds, to avoid, for
instance, sending out signals in
case of parking manoeuvres along
walls.
fig. 155
L0A0016b

211
Obstacles placed in side areas are
detected at a distance of less than
0.6 m.
Rear sensors are automatically
switched on by removing the trailer
cable plug.FAULT INDICATIONS
The system control unit checks all
the system components every time
the ignition key is turned to MAR.
Then, the sensors and their respec-
tive electrical connections are con-
stantly monitored during system
operation.
Parking assist system faults are sig-
nalled by the lighting of symbol t
on the multifunction display, togeth-
er with message “PARKING SEN-
SOR FAULT”.
In case of fault signals, stop the
car, shut the engine off, then try to
clean the sensors, making sure that
you are not close to ultrasound-
emitting sources (e.g. truck air
brakes or pneumatic hammers). If
the cause of the operation anomaly
has been remedied, the system fully
resumes its functions and the fault
symbol on the multifunction display
goes out, together with its respective
warning message. Rear sensors are auto-
matically switched off
when the trailer’s electric
cable plug is inserted into the car
tow hitch socket.TOWING A TRAILER

212
If, on the contrary, the warning
lamp remains on, go to a Lancia
Dealershipto have the system
checked even if the system keeps on
working. In fact, if the fault detected
by the control unit does not affect
the operation of the system, the lat-
ter keeps on working and the mal-
function is stored in the memory so
as to be detected by the Lancia
Dealershipduring a subsequent
check.
GENERAL NOTES
When parking your car, always pay
the greatest attention to the obsta-
cles that could be situated above or
below the sensors. In fact, objects
situated at close range in the car’s
front or rear parts could, under cer-
tain circumstances, not be detected
by the system and, therefore, dam-
age your car or be damaged them-
selves.Moreover, signals sent by the sen-
sors can be altered by damaged sen-
sors, by accumulation of dirt, snow
or ice on the sensors, or by ultra-
sound systems (e.g. truck air brakes
or pneumatic hammers) being oper-
ated nearby.INTERIOR
EQUIPMENT
FRONT CEILING LIGHT
(fig. 159)
This ceiling light includes a central
light and two courtesy lights.
To switch the central light on man-
ually, press button A; to switch it
off, press the same button again.
The light will light up and go out
gradually. If the ceiling light has
been switched on by means of the
button, it will automatically go out
after about 15 minutes after the
engine has been shut off (by turning
key to STOP).
fig. 159
L0A0098b