Page 177 of 261

Driving and operating175System limitationsThe system performance may not
operate properly when:
● Vehicle speed is below 37 mph.
● Driving on winding or hilly roads.
● During nighttime driving.
● Weather limits visibility, such as fog, rain, or snow.
● The sensor in the windscreen is blocked by snow, ice, slush, mud,dirt, windscreen damage or
affected by foreign items, e.g.
stickers.
● The sun is shining directly into the camera lens.
● Close vehicles ahead.
● Banked roads.
● Road edges.
● Roads with poor lane markings.
● Sudden lighting changes.
Driver alert
The driver alert system monitores the driving time and the vigilance of the
driver. Monitoring the vigilance of thedriver is based on the trajectory
variations of the vehicle compared to
the lane markings.
The system includes a driving time alert combined with driver drowsiness
detection.9 Warning
The system cannot replace the
need for vigilance on the part of
the driver. It is recommended that
you take a break as soon as you
feel tired or at least every two
hours. Do not take the wheel if you are tired.
Activation or Deactivation
The system can be activated or
deactivated in the vehicle
personalisation 3 101.
The state of the system stays in
memory when the ignition is switched
off.
Driving time alert
The driver gets notified by a pop-upreminder symbol € in the Driver
Information Centre simultaneously with an acoustic alert if the driver has
not taken a break after 2 hours of
driving at a speed above 40 mph. The alert is repeated hourly until the
vehicle is stopped, no matter how
vehicle speed evolves.
The counting of driving time alert is
reset when the ignition has been
switched off for a few minutes.
Driver drowsiness detection
The system monitors the driver's level
of vigilance. A camera at the top of the windscreen detects variations in
trajectory compared to the lane
markings. This system is particularly
suited to fast roads (speed higher
than 40 mph).
If the trajectory of the vehicle
suggests a certain level of
drowsiness or inattention by the
driver, the system triggers the first
Page 178 of 261

176Driving and operatinglevel of alert. The driver is notified by
a message and an audible signal is
given.
After three first level alerts, the
system triggers a new alert with a message, accompanied by a more
pronounced audible signal.
In certain driving conditions (poor
road surface or strong winds), the
system may give alerts independent of the driver's level of vigilance.
The driver drowsiness detection is
reinitialised when the ignition has
been switched off for a few minutes or the speed remains below 40 mph for
a few minutes.
System limitations
In the following situations, the system
may not operate properly or even not operate at all:
● Poor visibility caused by inadequate lighting of the
roadway, falling snow, heavy
rain, dense fog etc.● Dazzle caused by headlamps of an oncoming vehicles, low sun,
reflections on damp roads,
leaving a tunnel, alternating
shade and light etc.
● Windscreen area in front of the camera covered by dirt, snow,
stickers etc.
● No lane markings detected or multiple lane markings due to
roadworks
● Close vehicles ahead ● Winding roads or narrow roadsFuel
Fuel for petrol engines The petrol engines are compatible
with bio-fuels that conform to current
and future European standards and
and can be obtained from filling
stations:
Petrol that meets the EN228
standard, mixed with a biofuel
meeting the EN15376 standard.
Fuel for diesel engines The Diesel engines are compatible
with bio-fuels that conform to current and future European standards and
can be obtained from filling stations:
Page 206 of 261
204Vehicle careNo.Circuit1Interior mirror / Exhaust
system / Electric power
steering / Clutch sensor / LPG /
Exterior mirror adjustment /
Inductive charging2–3Trailer Hitch4Horn5Windscreen washer pump
front / rearNo.Circuit6Windscreen washer pump
front / rear7Heated steering wheel8Rear wiper9–10Central locking system11Central locking system12Instrument cluster13Climate control system / USB14OnStar15Instrument cluster / Climate
control system16Brake / Starter / Retained power off17Instrument cluster18Advanced parking assist19Top column module / Trailer
control module20–No.Circuit21Anti-theft alarm system / Start
button22Rain sensor / Camera23Door module24Advanced parking assist /
Camera / Infotainment25Airbag26Top column module27Anti-theft alarm system28–29Infotainment30–31Infotainment32Power outlet front33–34Heated exterior mirrors / Door
module
Page 259 of 261

257RRadio Frequency Identification (RFID) ..................................... 253
Radio remote control ...................21
Rain sensor .................................. 93
REACH ....................................... 247
Reading lights ............................ 115
Rear floor storage cover ..............66
Rear fog light ...............93, 114, 197
Rear seats .................................... 46
Rear view camera ...................... 172
Rear window wiper and washer ..75
Recommended fluids and lubricants ........................ 230, 234
Refuelling ................................... 178
Registered trademarks ...............250
Reversing lights .........................114
Ride control systems ..................148
Roof .............................................. 39
Roof load ...................................... 69
Roof rack ..................................... 69
S Safety belts ................................... 47
Seat adjustment ....................... 7, 43
Seat belt ........................................ 8
Seat belt reminder .......................88
Seat belts ..................................... 47
Seat heating ................................. 45
Seat position ................................ 42Selective catalytic reduction .......140
Selector lever ............................. 143
Service ............................... 128, 227
Service display ............................ 86
Service information ....................227
Service vehicle soon .................... 89
Side airbag system ......................53
Side blind spot alert ..............93, 168
Sidelights .................................... 109
Side turn lights ........................... 200
Software acknowledgement .......247
Software update ......................... 249
Spare wheel ............................... 215
Speed limiter......................... 93, 152
Speedometer ............................... 83
Starting and operating ................131
Starting off ................................... 16
Starting the engine ....................134
Steering ...................................... 131
Steering wheel adjustment ......9, 72
Steering wheel controls ...............72
Stop engine .................................. 89
Stop-start system........................ 136
Storage ......................................... 62
Storage compartments .................62
Sunvisor lights ........................... 116
Sun visors .................................... 39
Symbols ......................................... 4
System check ............................... 89T
Tachometer ................................. 83
Tail lights ................................... 197
Three-point seat belt .................... 48
Tools .......................................... 206
Tow bar....................................... 181
Towing ................................ 181, 220
Towing another vehicle .............221
Towing equipment .....................183
Towing the vehicle .....................220
Trailer coupling ........................... 181
Trailer towing ............................. 182
Transmission ............................... 16
Transmission display .................143
Tread depth ............................... 209
Trip odometer .............................. 83
Turn lights ............................ 87, 113
Tyre chains ................................ 210
Tyre deflation detection system . 208
Tyre designations ......................207
Tyre pressure ............................ 207
Tyre pressures ........................... 243
Tyre repair kit ............................. 211
U Ultrasonic parking assist............. 160
Upholstery .................................. 224
USB port ....................................... 76
Using this manual ..........................3
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