brake RENAULT LAGUNA 2012 X91 / 3.G User Guide

2.12
ENG_UD9635_3
Frein de parking assisté (X91 - B91 - K91 - Renault)
ENG_NU_936-5_BK91_Renault_2
Jaune NoirNoir texte
Electronic parking brake
Before leaving the vehicle,
check that the electronic
parking brake is fully ap -
plied. Indicator light 2 on
switch 3 and indicator light
}
on the instrument panel light up to
show that the parking brake is ap -
plied but go out when the doors are
locked.
Note:
The message “apply parking brake” ap-
pears on the instrument panel and a
beep sounds to indicate that the elec -
tronic parking brake is applied or re -
leased: This message may appear:
– with the engine running: when the
driver’s door is opened;
– with the engine switched off (e.g.
when the engine stalls): when a front
door is opened.
In this case, pull and release switch 3 to
apply the electronic parking brake.
The brake will be released as soon as
the vehicle starts and accelerates.
automatic operation
The electronic parking brake en -
sures vehicle immobilisation when the
engine is stopped and engine Start/
Stop button 1 is pressed.
For certain country-specific model ver-
sions, the automatic brake application
function is not activated. Refer to the in-
formation on “Manual operation”.
aSSISteD P aRkING bRake
To confirm that the electronic parking
brake is applied, the message “parking
brake applied” and indicator light
}
on the instrument panel and indicator
light 2 on switch 3 light up.
Indicator light 2 goes out several min -
utes after the electronic parking brake
has been applied and indicator light
} goes out when the vehicle is
locked.
12
3

JauneNoirNoir texte
2.13
ENG_UD9635_3
Frein de parking assisté (X91 - B91 - K91 - Renault)
ENG_NU_936-5_BK91_Renault_2
Special cases
When parking on a slope or towing a
trailer, pull switch 3 for a few seconds
to obtain the maximum braking effect.
To park the vehicle without applying the
assisted parking brake (if there is a risk
of freezing, for example):
– w i t h t h e e n g i n e r u n n i n g a n d
RENAULT card in reader 4 , switch
off the engine by pressing engine
Start/Stop button 1;
– select a gear (manual gearbox) or
position P (automatic gearbox);
– depress the brake pedal and press
switch 3 at the same time;
– remove the RENAULT card from the
reader.
brief stopTo manually activate the electronic
parking brake, (when stopping at a red
light, or stopping when the engine is
running, etc.): pull and release switch 3.
The brake is released as soon as the
vehicle is started up again.
aSSISteD P aRkING bRake (continued)
4
13
Manual operationYou can control the electronic parking
brake manually.
applying the electronic parking
brake
Pull switch 3 . Indicator lights 2 and
} light up on the instrument panel.
Releasing the electronic parking
brake
With the ignition on, depress the brake
pedal then press button 3 : indicator
lights 2 and
} go out.
2

2.14
ENG_UD9635_3
Frein de parking assisté (X91 - B91 - K91 - Renault)
ENG_NU_936-5_BK91_Renault_2
operating faults
– If there is a fault, the © warning
light illuminates on the instrument
panel accompanied by the “Check
parking brake” message and, in
some cases, the
} warning
light.
Contact an approved Dealer as soon
as possible.
aSSISteD P aRkING bRake (continued)
It is therefore essential to
immobilise the vehicle by
engaging first gear (manual
gearbox) or position P (au -
tomatic gearbox). If the slope re -
quires it, chock the vehicle.
v ersions with an automatic
gearbox
For safety reasons, automatic release
is deactivated when the driver’s door
is open or not shut properly and the
engine is running (in order to prevent
the vehicle from moving without the
driver). The “release manually” mes -
sage appears on the instrument panel
when the driver depresses the accel -
erator.
Never leave your vehicle
without moving the selec -
tor lever to position P or N.
This is because when the
vehicle is stationary with the engine
running and a gear engaged, the
vehicle may begin to move if you
accelerate.
there is a risk of accidents.
– If there is an electronic parking brake
fault, the
® warning lights illu -
minate accompanied by the “Parking
brake fault” message, a beep and in
some cases the
} warning light.
This means that you must stop as
soon as traffic conditions allow.
If no lights or sounds are
apparent, this indicates
a fault in the instrument
panel. This indicates that it
is essential to stop immediately
(as soon as traffic conditions
allow). Ensure that the vehicle is
correctly immobilised and contact
an approved Dealer.

2.16
ENG_UD19886_6
Conseils antipollution, économie de carburant, conduite (X45 - H45 - X85 - B85 - C85 - S85 - X91 - X83 - X61 - F61 - K61 - K85 - X95 - B95 - D95 - J95 - R95 - L38 - X61
ENG_NU_936-5_BK91_Renault_2
Jaune NoirNoir texte
aDvICe: antipollution, fuel economy and driving (2/3)
– Avoid sudden acceleration.
– Brake as little as possible. If you an-
ticipate an obstacle or bend in ad -
vance, you may then simply release
the accelerator pedal.
– Do not try to maintain the same
speed up a hill, accelerate no more
than you would on the level. Keep
your foot in the same position on the
accelerator pedal.
– Double declutching and accelerating
before switching off are unnecessary
in modern vehicles.
– Bad weather, flooded roads:
Do not drive through floods
if the water is above the
lower edge of the wheel
rims.
Driving– Drive carefully for the first few miles
until the engine reaches its normal
operating temperature, rather than
let it warm up while the vehicle is sta-
tionary.
– Speed is expensive.
– Sporty driving uses a lot of fuel: drive
with a light right foot.
– Do not overrev the engine in the in-
termediate gears.
Always use the highest gear possi -
ble without labouring the engine.
On versions with an automatic gear-
box, it is preferable to keep the gear
lever in position D.
exhaust gas monitoring
system
The exhaust gas monitoring system will
detect any operating faults in the vehi-
cle’s antipollution system.
If this system malfunctions, toxic sub -
stances may be released into the at -
mosphere or damage may occur.
ÄThis warning light on the in -
strument panel will indicate if
there are any faults in the system:
This lights up when the ignition is
switched on and goes out when the
engine is started.
– If it lights up continuously, consult an
approved Dealer as soon as possi -
ble;
– if it flashes, reduce the engine speed
until the light stops flashing. Contact
your approved dealer as soon as
possible.
obstructions to the driver
On the driver ’s side, only
use mats adapted to the ve-
hicle that attach to the pre-
installed parts, and regularly check
their mounting. Do not place several
mats on top of each other.
Risk of pedals jamming

ABS ...................................................... (up to the end of the DU)
anti-lock braking system: ABS ..............(up to the end of the DU)
emergency brake assist ........................(up to the end of the DU)
emergency braking ............................... (up to the end of the DU)
driving ................................................... (up to the end of the DU)
ASR (traction control) ........................... (up to the end of the DU)
traction control: ASR .............................(up to the end of the DU)
traction control system: ASR ................(up to the end of the DU)
electronic stability control: ESC ............ (up to the end of the DU)
ESC: electronic stability control ............ (up to the end of the DU)
Hill Start Assist...................................... (up to the end of the DU)
2.22
ENG_UD27695_10
Dispositifs de correction et d’assistance à la de conduite (X91 - B91 - K91 - D91 - Renault)
ENG_NU_936-5_BK91_Renault_2
Jaune NoirNoir texte
abS (anti-lock braking
system)
Under heavy braking, the ABS prevents
the wheels from locking, allowing the
stopping distance to be managed and
keeping control of the vehicle.
Under these circumstances, the vehi -
cle can be steered to avoid an obstacle
whilst braking. In addition, this system
can increase stopping distances, par -
ticularly on roads with low surface grip
(wet ground etc.).
You will feel a pulsation through the
brake pedal each time the system is
activated. The ABS does not in any way
improve the vehicle's physical perform-
ance relating to the road surface and
roadholding. It is still essential to follow
the rules of good driving practice (such
as driving at a safe distance from the
vehicle in front etc.).
Driver correction devices and aids
DRIveR CoRReCtIoN DevICeS aND aIDS (1/5)
Depending on the vehicle, they may
comprise:
– t h e a bS ( a n t i - l o c k b r a k i n g
system);
– eSC (electronic stability program)
with understeer control and a SR
traction control;
– emergency brake assist with, de -
pending on the vehicle, braking
anticipation;
– rear wheel steering.
In an emergency, apply firm and
continuous pressure to the brake
pedal. There is no need to pump
it repeatedly. The ABS will modu -
late the force applied in the braking
system.
These functions are an ad-
ditional aid in the event of
critical driving conditions,
enabling the vehicle behav -
iour to be adapted to suit the driving
conditions.
However, the functions do not take
the place of the driver. they do
not increase the vehicle’s limits
and should not encourage you
to drive more quickly. Therefore,
they can under no circumstances
replace the vigilance or responsibil -
ity of the driver when manoeuvring
the vehicle (the driver must always
be ready for sudden incidents which
may occur when driving).
Yo u r b r a k i n g s y s t e m s
are partially operational.
However, it is dangerous
to brake suddenly and
it is essential to stop immediately,
as soon as traffic conditions allow.
Contact an approved dealer.
operating faults:
–
© and x lit up on the in -
strument panel alongside mes -
sages “Check ABS”, “Check braking
system” and “Check ESC”: indicates
the ABS, ESC and emergency brake
assist are deactivated. braking is
always enabled;
–
x, D, © and ® lit
up on the instrument panel alongside
the message “Braking system fault”:
this indicates a fault in the braking
system.
In both cases, consult an approved
dealer.

JauneNoirNoir texte
2.23
ENG_UD27695_10
Dispositifs de correction et d’assistance à la de conduite (X91 - B91 - K91 - D91 - Renault)
ENG_NU_936-5_BK91_Renault_2
DRIveR CoRReCtIoN DevICeS aND aIDS (2/5)
hill start assistance
This function assists the driver when
starting on hills. It prevents the vehicle
from rolling backwards, depending on
the slope, by automatically applying the
brakes when the driver lifts his/her foot
off the brake pedal to depress the ac -
celerator pedal.
System operation
It only operates when the gear lever is
in a position other than neutral (other
than N or P for automatic transmis -
sions) and the vehicle is completely
stationary (brake pedal depressed)
The system holds the vehicle for ap -
proximately 2 seconds. The brakes are
then gradually released (the vehicle will
move according to the slope).
The hill start assistance
system cannot completely
prevent the vehicle from
rolling backwards in all sit -
uations (extremely steep gradients,
etc.).
In all cases, the driver may depress
the brake pedal to prevent the vehi-
cle from rolling backwards.
The hill start assistance function
should not be used for prolonged
stops: use the brake pedal.
This function is not designed to im-
mobilise the vehicle permanently.
If necessary, use the brake pedal to
stop the vehicle.
The driver must remain particularly
vigilant when driving on slippery or
low-grip surfaces and/or on hills.
Risk of serious injury.

2.24
ENG_UD27695_10
Dispositifs de correction et d’assistance à la de conduite (X91 - B91 - K91 - D91 - Renault)
ENG_NU_936-5_BK91_Renault_2
Jaune NoirNoir texte
DRIveR CoRReCtIoN DevICeS aND aIDS (3/5)
electronic stability control
eSC with understeer control
and traction control aSR
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, warning 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).
t raction control (aSR)
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
© appear on the in-
strument panel. In this case, the ESC
and ASR are deactivated.
Consult an approved dealer.

JauneNoirNoir texte
2.25
ENG_UD27695_10
Dispositifs de correction et d’assistance à la de conduite (X91 - B91 - K91 - D91 - Renault)
ENG_NU_936-5_BK91_Renault_2
Disabling the aSR function
In some situations (driving on very wet
ground: snow, mud, etc. or driving with
snow chains fitted), the system may
reduce the engine output to limit wheel -
spin. If this is not required, it is possible
to deactivate the function by pressing
switch 1.
The message “ Traction control off ” is
displayed on the instrument panel to
inform you.
Traction control (ASR) offers additional
safety; it is recommended that you do
not drive with the function disabled.
Correct this as soon as possible by
pressing switch 1 again.
Note: The function is reactivated auto-
matically when the ignition is switched
on or when a speed of approximately
24 mph (40 km/h) is exceeded.
emergency brake assist
This system supplements the ABS
and helps reduce vehicle stopping dis-
tances.
operating principle
The system is for detecting an emer -
gency braking situation. In this case,
the braking assistance immediately de-
velops maximum power and may trig -
ger ABS regulation.
ABS braking is maintained as long as
the brake pedal is applied.
DRIveR CoRReCtIoN DevICeS aND aIDS (4/5)
1
hazard warning lights switching on
Depending on the vehicle, these may
light up in the event of sudden decel -
eration.
operating faults
When the system detects an operat -
ing fault the message “ Check brak-
ing system” appears on the instrument
panel along with the
© warning
light.
Consult an approved dealer.
braking anticipation
Depending on the vehicle, when you
rapidly release the accelerator, the
system anticipates the braking ma -
noeuvre in order to reduce stopping
distances.
Special cases
When using the cruise control:
– if you use the accelerator, when you
release it, the system may be trig -
gered;
– if you do not use the accelerator, the
system will not be triggered.

cruise control ........................................ (up to the end of the DU)
cruise control-speed limiter................... (up to the end of the DU)
driving ................................................... (up to the end of the DU)
2.30
ENG_UD22201_5
Régulateur-limiteur de vitesse : fonction régulateur (X91 - B91 - K91 - Renault)
ENG_NU_936-5_BK91_Renault_2
Jaune NoirNoir texte
Cruise control
CRUISe CoNtRoL/SPeeD LIMIteR: cruise control function (1/4)
The cruise control function helps you to
maintain your driving speed at a speed
that you choose, called the cruising
speed.
This cruising speed may be set at any
speed above 20 mph (30 km/h).
The cruise control function
is in no way linked to the
braking system.
This function is an addi -
tional driving aid. However,
the function does not take
the place of the driver.
Therefore, it can under no circum -
stances replace the driver’s respon-
sibility to respect speed limits and to
be vigilant (the driver must always
be ready to brake). Cruise control
must not be used in heavy traffic, on
undulating or slippery roads (black
ice, aquaplaning, gravel) and during
bad weather (fog, rain, side winds
etc.).
There is a risk of accidents.
Controls
1 Main “On/Off” switch.
2 Limit speed activation, storage and
increase switch (+).
3 Limit speed activation, storage and
decrease switch (-).
4 Switch the function to standby
(with memorised cruising speed)
(O).
5 Cruising speed activation, storage
and recall (R).
2354
1

JauneNoirNoir texte
2.33
ENG_UD22201_5
Régulateur-limiteur de vitesse : fonction régulateur (X91 - B91 - K91 - Renault)
ENG_NU_936-5_BK91_Renault_2
CRUISe CoNtRoL/SPeeD LIMIteR: cruise control function (4/4)
Putting the function on
standby
The function is suspended when you:
– the switch 4 (O);
– the brake pedal;
– depress the clutch pedal or shift into
neutral if the vehicle has an auto -
matic gearbox.
In all three cases, the cruising speed re-
mains stored and the message “Stored”
appears on the instrument panel.
Standby is confirmed when indicator
light
 goes out. Returning to the cruising speed
If a speed is stored, it can be recalled,
once you are sure that the road condi
-
tions are suitable (traffic, road surface,
weather conditions, etc.). With a ve -
hicle speed above 20 mph (30 km/h),
press switch 5 (R).
Note: if the speed previously stored is
much higher than the current speed,
the vehicle will accelerate more rapidly
to reach this threshold.
When the cruise control is sus -
pended, pressing switches 2 (+)
or 3 (-) reactivates the function with-
out taking into account the stored
speed: it is the speed at which the
vehicle is moving that is taken into
account.
Switching off the function
The cruise control function is deacti -
vated if you press switch 1: in this case
a speed is no longer stored. The green
 and  instrument panel indicator
lights go out, confirming that the func -
tion is deactivated.
Putting the cruise control
on standby or switching it
off does not cause a rapid
reduction in speed: you
must brake by depressing the brake
pedal.
1
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