2018 RENAULT MEGANE sensor

2.28
TYRE PRESSURE MONITORING SYSTEM (2/3)
Display
The display 1 and the warning light 4
 on the instrument panel warn
you of any tyre pressure faults (flat tyre,
punctured tyre, system fault, etc.).
“Puncture”
A wheel B is shown, depending on the
vehicle, in red or white accompanied
by the warning light 4
 fixed, the
message “Puncture” and a beep.
This message appears along with the
® warning light. They indicate that
the affected wheel is punctured or se-
verely underinflated. Replace it or con-
tact an approved dealer if it is punc-
tured. Top up the tyre pressure if the
wheel is deflated.
“Check tyre pressure sensors”
A wheel A disappears, the warning
light 4
 flashes for several sec-
onds then comes on continuously and
the message “Check tyre pressure sen-
sors” appears.
This message appears along with the
© warning light. They indicate that
at least one wheel is not fitted with sen-
sors (e.g. emergency spare wheel).
Otherwise, consult an authorised
dealer.
“Adjust tyre pressure”
A wheel B is shown, depending on the
vehicle, in orange or white accompa-
nied by the warning light
4
 fixed
and the message “Adjust tyre pres-
sure”. They indicate that a wheel is de-
flated.
Check and, if necessary, readjust the
pressures of the four wheels when cold.
The warning light 4
 goes off after
a few minutes’ driving.
A
B
1
For your safety, the warning
light
® requires you
to stop immediately as soon
as traffic conditions allow.
The sudden loss of pressure in a tyre (burst tyre, etc.) cannot be det\
ected by the
system.
4

2.29
Tyre repair product and
inflation kit
Because the valves are specially de-
signed, only use equipment approved
by the approved network. Please refer
to “Tyre inflation kit” in Section 5.
Replacing wheels/tyres
This system requires specific equip-
ment (wheels, tyres, hubcaps, etc.).
Please see the information on “Tyres”
in Section 5.
Contact an approved Dealer to fit new
tyres and to find out about available ac-
cessories compatible with the system
and available from your dealer net-
work: the use of any other accessory
could affect the correct operation of the
system or damage a sensor.
Emergency spare wheel
If the vehicle is equipped with an emer-
gency spare wheel, it will not have a
sensor.
TYRE PRESSURE MONITORING SYSTEM (3/3)
Changing a wheel
The system may take sev-
eral minutes depending on
use for the new wheel po-
sitions and pressures to be recog-
nised; check the tyre pressures after
all operations.
“Tyres location in progress”
This message “Tyres location in
progress” appears when driving if one
or more wheels have been fitted with
sensors not recognised by Renault.
Consult an approved dealer
Readjustment of tyre
pressures
The tyre pressures should be ad-
justed when cold (please refer to the
label located on the edge of the driver’s
door). If the tyre pressures cannot be
checked when the tyres are cold, the
recommended pressures should be in-
creased by 0.2 to 0.3 bar (3 PSI).
Never deflate a hot tyre.
This function is an addi-
tional driving aid.
The function does not take
the place of the driver. It
cannot, therefore, under any cir-
cumstances replace the vigilance
or the responsibility of the driver.
Check the tyre pressures, including
the emergency spare wheel, once a
month.

2.32
Electronic stability control
ESC with understeer control
and traction control
Electronic stability control ESC
This system helps you to keep control
of the vehicle in critical driving condi-
tions (avoiding an obstacle, loss of grip
on a bend, etc.).
Operating principle
A sensor in the steering wheel detects
the direction selected by the driver.
Other sensors throughout the vehicle
measure the actual direction.
The system compares driver input to
the actual trajectory of the vehicle and
corrects the trajectory if necessary by
controlling the braking of certain wheels
and/or engine power. In the event that
the system is engaged, indicator light
 flashes on the instrument panel.Understeer control
This system optimises the action of the
ESC in the case of pronounced under-
steer (loss of front axle road holding).
Traction control
This system helps to limit wheelspin of
the drive wheels and to control the ve-
hicle when pulling away accelerating or
decelerating.
Operating principle
Using the wheel sensors, the system
measures and compares the speed of
the drive wheels at all times and slows
down their over-rotation. If a wheel is
starting to slip, the system brakes au-
tomatically until the drive supplied be-
comes compatible with the level of grip
under the wheel again.
The system also adjusts the engine
speed to the grip available under the
wheels, independently of the pressure
exerted on the accelerator pedal.
Operating faults
When the system detects an operat-
ing fault the message “Check ESC” and
warning light
© and  appear
on the instrument panel.
In this case, the ESC and traction con-
trol system are deactivated. Consult an
authorised dealer.
DRIVER CORRECTION DEVICES AND AIDS (3/10)

2.34
DRIVER CORRECTION DEVICES AND AIDS (5/10)
If the driver depresses the brake pedal
and the system still detects a risk of col-
lision, the brake force is increased.
If the driver fails to react following
an alert of an imminent collision, the
system activates the brakes.
Active emergency braking
Using the sensor 1, the system calcu-
lates the distance separating the vehi-
cle from the one in front and alerts the
driver if there is a risk of a front-end col-
lision. The driver can then brake the ve-
hicle to limit the damage arising from a
collision.
Note: Make sure that the sensor 1 is
not obscured (by dirt, mud, snow, etc.).
Operation
When driving (speed between 19 and
87 mph (30 and 140 km/h) or depend-
ing on the vehicle, 93 mph (150 km/h)),
if there is a risk of collision with the ve-
hicle in front, depending on the vehicle:
– the warning light
\b is displayed
in red on the instrument panel, ac-
companied by a beep;
or
– the indicator 2 is displayed in red on
the instrument panel and, depending
on the vehicle, on the head up dis- play, accompanied by a beep.
The system only detects vehicles
driving in the same direction of traf-
fic. The system cannot detect mo-
torcycles because of the difficulty in
forecasting their trajectory.
1
2

2.36
DRIVER CORRECTION DEVICES AND AIDS (7/10)
Active emergency braking
This function is an additional driving aid. This function is not under any
circumstances intended to replace the due care and attention of the
driver, who should at all times be in control of the vehicle.
System servicing/repairs
– In the event of an impact, the sensor alignment may become changed, and \
its operation will consequently be affected. Deactivate the function, then consult
an authorised dealer.
– Any work in the area where the radar is located (repairs, replacements,\
touch- ing up of paintwork) must be carried out by a qualified professional.
Only an authorised dealer is qualified to service the system.
In the event of system disturbance
Some conditions can disturb or damage the operation of the system, such \
as:
– a complex environment (metal bridge, etc.);
– poor weather conditions (snow, hail, black ice, etc.).
Risk of inadvertent braking.
Operating faults
When the system detects an operating
fault, the
\b warning light lights up
on the instrument panel, with the mes-
sage “Active braking disconnected”.
There are two possibilities:
– The system is temporarily experienc- ing difficulties (for example: sensor
obscured by dirt, mud, snow etc.);
in this case, park the vehicle and
switch off the engine. Clean the de-
tection zone of the radar. When you
next start the engine, the warning
light and the message go out;
– If this is not the case, this may arise from another cause; contact an
Approved Dealer.

2.37
DRIVER CORRECTION DEVICES AND AIDS (8/10)
Active emergency braking
Limitation of the system operation
– The system will only respond to vehicles which are moving or which have \
been sensed as moving.
– A vehicle travelling in the opposite direction will not trigger any alert\
or any action on the system operation.
– The sensor area should be kept clean and free of any modifications in or\
der to ensure the proper operation of the system.
– The system cannot respond to small vehicles such as motorbikes or bicycl\
es as effectively as to other vehicles.
Deactivating the function
You must disable the function if:
– the brake lights are not functioning;
– the front of the vehicle has undergone an impact or been damaged;
– the vehicle is being towed (breakdowns).
Halting the function
You can halt the active braking function at any time by tapping the accel\
erator pedal or by turning the steering wheel in a avo id-
ance manoeuvre.
If the driver notices any unusual behaviour in the system, please consul\
t an authorised dealer.

2.43
BLIND SPOT WARNING (1/4)
This system alerts the driver to other
vehicles in the detection zone A.
The system is activated when the vehi-
cle’s speed is between approximately
30 km/h (19 mph) and 140 km/h (87
mph).
This function uses sensors 1 installed
in the front and rear bumper of both
sides.
1
A
Special feature
Make sure that the sensors are not ob-
scured (by dirt, mud, snow, etc.).
If a sensor is obscured, the message
“Blind spotclean sensor” will appear on
the instrument panel. Clean the sen-
sors.
AThis function is an addi-
tional aid which indicates
other vehicles in the blind
spot area.
It can never in any case be a sub-
stitute for care nor for the driver’s
responsibility while in charge of his
vehicle.
The driver should always be ready
for sudden incidents while driv-
ing: always ensure that there are
no small, narrow moving obstacles
(such as a child, animal, pushchair,
bicycle, stone, post etc.) in the blind
spot when manoeuvring.

2.46
Operating faults
If the system detects a fault, the mes-
sage “Check blind spot alert” is dis-
played on the instrument panel. Consult
an approved dealer.
Note: when the engine is started, the
indicator light 6, display B , flashes
three times. It is normal.
– The system’s detection
range operates according
to a standard lane width. If
you are driving in wide traf-
fic lanes, the system might not
be able to detect a vehicle in the
blind spot.
– The system might be disrupted momentarily if it is exposed to
strong electromagnetic waves
(as beneath high-tension power
lines) or to very poor weather
conditions (heavy rain, snow,
etc.). Remain aware of driving
conditions.
There is a risk of accidents.
BLIND SPOT WARNING (4/4)
Because sensors have
been installed in the bump-
ers, any work (repairs, re-
placements, touching up of
paintwork) must be carried out by a
qualified professional.
6
B
C
D
Conditions for non-function
– If the object is not moving;
– if traffic is heavy;
– the road is winding;
– if front and rear sensors both detect objects at the same time (e.g. when
passing an articulated lorry).
– ...