2018 RENAULT SCENIC brake sensor

2.37
DRIVER CORRECTION DEVICES AND AIDS (3/5)
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 the direction se-
lected by the driver and the actual di-
rection of the vehicle and corrects this
as necessary by applying the brakes
selectively and/or acting on the engine
power. If the system is triggered, the
 indicator light flashes on the in-
strument 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.

2.44
ACTIVE EMERGENCY BRAKING (5/7)
Conditions for non-activation
of the system
The system cannot be activated:
– when the gear lever is in neutral;
– when the parking brake is activated;
– while cornering.
As a general rule, if the driver shows
signs of attention (action on the steering
wheel, pedals etc.), the system delays
its operation or does not activate.
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”.
Consult an approved dealer
Temporarily not available
When the system detects a tempo-
rary unavailability, the
\b warning
light lights up on the instrument panel
accompanied by the message “Active
braking: sensor blind” or, depending on
the vehicle, “Radar-camera: no visibil-
ity”.
The possible causes are:
– the system is temporarily blinded (glare from the sun, dipped beam
headlights, bad weather conditions
etc.). The system will be operational
again when visibility conditions are
better;
– the system is temporarily disrupted (for example: windscreen obscured
by dirt, ice, snow etc.). In this case,
park the vehicle and switch off the
engine. Clean the windscreen. When
you next start the engine, the warn-
ing light and the message go out;
– if this is not the case, this may arise from another cause; contact an
Approved Dealer.

7.5
ALPHABETICAL INDEX (5/6)
rear view camera .................................................... 2.87 – 2.88
rear view mirrors ..................................................... 1.92 – 1.93
R
remote control card: use ......................................... 1.10 – 1.11
R
remote control door lockingbatteries ..............................................................\
......... 5.32
remote control door locking unit ................................1.2 → 1.4
RENAULT ANTI-INTRUDER DEVICE (RAID) ................... 1.18
RENAULT card battery ................................................................\
.......... 5.31
use ....................................................................\
.1.6 → 1.12
RENAULT card battery ...................................................... 5.31
replacement parts ................................................................ 6.8
reverse gear selecting ..................................................2.20, 2.93 → 2.95
reversing sensor ....................................................2.82 → 2.86
roof bars ........................................................................\
.... 3.56
roof rack roof bars ....................................................................... 3.56
running in .................................................................... 2.2 – 2.3
S
safety distance warning .........................................2.59 → 2.61
safety distances .....................................................2.59 → 2.61
screen fold-away screen .......................................................... 1.74
navigation display .................................. 1.73, 3.22 – 3.23
navigation screen ..................................... 1.73, 3.22 – 3.23
screen wash/wipe ............................................... 1.109 – 1.110
seat belt pretensioners ..........................................1.32 → 1.35
seat belts ................................ 1.28 → 1.30, 1.32 → 1.35, 1.38
see-me-home lighting ........................................................ 1.99
service sheets..........................................................6.9 → 6.14side indicator lights
changing bulbs ............................................................. 5.23
sign detection: overspeed warning ........................2.64 → 2.66
signals and lights .................................................1.95 → 1.102
special features of diesel versions..................................... 2.13
special features of petrol vehicles ..................................... 2.12
speed limiter ..........................................................2.67 → 2.69
starting the engine .....................................................2.3 → 2.7
steering wheel adjustment .............................................................\
...... 1.91
Stop & Start ............................................................. 2.8 → 2.11
Stop & Start function................................................ 2.8 → 2.11
stopping the engine ............................................................. 2.4
storage compartment.............................................3.30 → 3.37
storage compartments ..................................3.30 → 3.37, 3.49
sun blinds ........................................................................\
.. 3.29
sun visor ........................................................................\
.... 3.29
switching on the vehicle ignition ................................... 2.3, 2.6
T
tailgate .................................................. 3.46 – 3.47, 3.49, 3.51
tanks and reservoirs brake fluid ...................................................................... 4.9
coolant ................................................................\
........... 4.8
tanks and reservoirs: windscreen washer ...................................................... 4.10
technical specifications ..............................................6.4 → 6.8
telephone ................................................................ 3.22 – 3.23
temperature regulation ........................3.9 → 3.13, 3.19 – 3.20
tool kit ...................................................................... 5.9 → 5.11
towing breakdown ........................................................ 5.36 – 5.37
towing equipment .............................................. 3.51 – 3.52
towing a caravan ............................................. 3.51 – 3.52, 6.7
towing equipment fitting ................................................................. 3.51 – 3.52