2021 CITROEN DS3 CROSSBACK trailer

7Eco-driving
Eco-driving
Eco-driving refers to a range of everyday practices
that allow the motorist to optimise their fuel
consumption and CO
2emissions.
Optimise your use of the gearbox
With a manual gearbox, move off gently and
change up promptly. While accelerating, change
up early.
With an automatic gearbox, favour automatic
mode and avoid pressing the accelerator pedal
heavily or suddenly.
The gear efficiency indicator prompts you to
engage the most suitable gear: whenever this
indication is displayed on the instrument panel,
follow it straight away.
With an automatic gearbox, this indicator
appears only in manual mode.
Drive smoothly
Maintain a safe distance between vehicles, use
engine braking rather than the brake pedal and
press the accelerator gradually. These attitudes
help to save fuel, reduce CO
2 emissions and
decrease general traffic noise.
Favour the use of the "Eco" driving mode by
selecting it using the "Drive Mode" control.
If the vehicle has the steering-mounted "CRUISE"
control, use cruise control at speeds above 25
mph (40 km/h) when the traffic is flowing well.
Use electrical equipment wisely
Before moving off, if the passenger compartment
is too warm, ventilate it by opening the windows
and air vents before using the air conditioning.
At speeds above 31 mph (50 km/h), close the
windows and leave the air vents open.
Consider using equipment that can help keep
the temperature in the passenger compartment
down.
Unless automatically regulated, switch off the air
conditioning as soon as the desired temperature
has been reached.
Switch off the demisting and defrosting
functions, if they are not managed automatically.
Switch off the heated seat as soon as possible.
Switch off the headlamps and foglamps when the
visibility conditions do not require their use.
Avoid running the engine before moving off,
particularly in winter; your vehicle will warm up
much faster while driving.
As a passenger, avoid connecting your multimedia
devices (film, music, video game, etc.) to help
reduce consumption of electrical energy, and
hence fuel.
Disconnect all portable devices before leaving the
vehicle.
Limit the causes of excess consumption
Spread loads throughout the vehicle; place the
heaviest items in the boot, as close as possible to
the rear seats. Limit the loads carried in the vehicle and minimise
wind resistance (roof bars, roof rack, bicycle
carrier, trailer, etc.). Preferably, use a roof box.
Remove roof bars and roof racks after use.
At the end of winter, remove snow tyres and refit
summer tyres.
Comply with servicing instructions
Check tyre pressures regularly, with the tyres
cold, referring to the label in the door aperture on
the driver's side.
Carry out this check in particular:
–

before a long journe
y.
–

a
t each change of season.
–

a
fter a long period out of use.
Do not overlook the spare wheel and, where
applicable, the tyres on your trailer or caravan.
Have your vehicle serviced regularly (engine oil,
oil filter, air filter, passenger compartment filter,
etc.) and observe the schedule of operations in
the manufacturer's service schedule.
With a BlueHDi Diesel engine, if the SCR system
is faulty, your vehicle will emit pollution; visit a
dealer or a qualified workshop as soon as possible
to restore your vehicle’s nitrogen oxide emissions
to regulatory compliance.
When filling the fuel tank, do not continue after
the third nozzle cut-out, to avoid overflow.
You will only see the fuel consumption of your new
vehicle settle down to a consistent average after
the first 1,900 miles (3,000 kilometres).

80Driving06
Driving recommendations
► Observe the driving regulations and remain
vigilant whatever the traffic conditions.
►  Monitor your environment and keep your
hands on the wheel to be able to react to anything
that may happen any time.
►  Drive smoothly, anticipate the need for braking
and maintain a longer safety distance, especially
in bad weather.
►  Stop the vehicle to carry out operations that
require close attention (such as adjustments).
►  During long trips, take a break every two
hours.
Important!
Never leave the engine running in a closed
space without sufficient ventilation.
Internal combustion engines emit toxic
exhaust gases such as carbon monoxide.
Danger of poisoning and death!
In severe wintry conditions (temperature
below -23°C), let the engine run for 4
minutes before moving off, to ensure the
correct operation and durability of the
mechanical components of your vehicle
(engine and gearbox).
Never drive with the parking brake
applied. Risk of overheating and damage
to the braking system!
Do not park the vehicle or leave the engine
running on a flammable surface (dry
grass, dead leaves, etc.). The exhaust system
of your vehicle is very hot, even several
minutes after the engine stops. Risk of fire!
Never leave a vehicle unattended with the
engine running. If you have to leave your
vehicle with the engine running, apply the
parking brake and put the gearbox into neutral
or position N or P (depending on the type of
gearbox).
Never leave children inside the vehicle
unsupervised.
On flooded roads
We strongly advise against driving on flooded
roads, as this could cause serious damage to the
engine or gearbox, as well as to the electrical
systems of your vehicle.


If you are obliged to drive on a flooded road:
►  check that the depth of water does not exceed
15 cm, taking account of waves that might be
generated by other users,
►  deactivate the Stop & Start function,
►  drive as slowly as possible without stalling. In
all cases, do not exceed 6 mph (10 km/h),
►  do not stop and do not switch off the engine.
On leaving the flooded road, as soon as safety
conditions allow, make several light brake
applications to dry the brake discs and pads.
If in doubt about the state of your vehicle, contact
a dealer or a qualified workshop.
Noise (Electric)
On the outside
Due to the vehicle’s quiet operation when driving,
the driver should pay particular attention.
At speeds of up to 19 mph (30 km/h), the
pedestrian horn warns other road users of the
vehicle’s presence.
Cooling the traction battery
The cooling fan comes on during charging
to cool the on-board charger and the traction
battery.
On the inside
During use, you may hear certain perfectly normal
noises specific to electric vehicles, such as:
–

Traction ba
ttery relay when starting.
–

V
acuum pump when braking.
–

V
ehicle tyres or aerodynamics when driving.
– Jolting and knocking noise during hill starts.
Towing
Driving with a trailer places greater
demands on the towing vehicle and
particular care must be taken.
Do not exceed the maximum towable
weights.
At altitude: reduce the maximum load by 10%
per 1,000 metres of altitude; the lower air
density at high altitudes decreases engine
performance.
New vehicle: do not tow a trailer until the
vehicle has driven at least 620 miles
(1,000 kilometres).
If the outside temperature is high, let the
engine idle for 1 to 2 minutes after the
vehicle comes to a stop, to help it to cool.
Before setting off
Nose weight
►  Distribute the load in the trailer so that the
heaviest items are as close as possible to the axle
and the nose weight (at the point where it joins
your vehicle) approaches the maximum permitted
without exceeding it.

81Driving06
– Jolting and knocking noise during hill starts.
Towing
Driving with a trailer places greater
demands on the towing vehicle and
particular care must be taken.
Do not exceed the maximum towable
weights.
At altitude: reduce the maximum load by 10%
per 1,000 metres of altitude; the lower air
density at high altitudes decreases engine
performance.
New vehicle: do not tow a trailer until the
vehicle has driven at least 620 miles
(1,000 kilometres).
If the outside temperature is high, let the
engine idle for 1 to 2 minutes after the
vehicle comes to a stop, to help it to cool.
Before setting off
Nose weight
►  Distribute the load in the trailer so that the
heaviest items are as close as possible to the axle
and the nose weight (at the point where it joins
your vehicle) approaches the maximum permitted
without exceeding it.
Tyres
►  Check the tyre pressures of the towing vehicle
and of the trailer, observing the recommended
pressures.
Lighting
►  Check the electrical signalling on the trailer
and the headlamp beam height of your vehicle.
If a genuine towing device is used, the
rear parking sensors will be deactivated
automatically to avoid the audible signal.
When driving
Cooling
Towing a trailer uphill causes the coolant
temperature to increase. The maximum towable
load depends on the gradient and the exterior
temperature. The fan’s cooling capacity does not
increase with engine speed.
►  Reduce speed and lower the engine speed to
limit heating up.
In all cases, pay attention to the coolant
temperature.
If this warning lamp and the STOP
warning lamp come on, stop the
vehicle and switch off the engine as soon as
possible.
Brakes
Braking distances are increased when towing a
trailer. To avoid overheating the brakes, the use of
engine braking is recommended.
Side wind
Bear in mind that the vehicle will be more
susceptible to wind when towing.
Anti-theft protection
Electronic immobiliser
The keys include an electronic engine immobiliser
system, with a code that must be recognised in
order for starting to be possible.
If the system malfunctions, indicated by the
display of a message, the engine will not start.
Contact a dealer.
Starting/Switching off the
engine
The electronic key must be present in the
passenger compartment.
For versions equipped with Proximity Keyless
Entry and Start, the electronic key is also
detected in the boot.
If it is not detected, a message is displayed.
Move the electronic key so that the engine can
be started or switched off.
If there is still a problem, refer to the "Key not
detected - Back-up starting or Back-up switch-
off" section.

106
Driving06
– Vehicles crossing your lane.
– V ehicles driving in the opposite direction.
Situations in which the driver must pause the
cruise control system:


– Vehicles in a tight bend.
– When approaching a roundabout.

– When follo wing a narrow vehicle.
Reactivate cruise control when conditions permit.
Situations in which the driver is prompted to
immediately resume control:
–

Ex
cessively sharp deceleration by the vehicle in
front of you.


– When a vehicle cuts in sharply between your
vehicle and the one in front.
Pay particular attention:
– When mo torcycles are present and
when there are vehicles staggered across the
traffic lane.
–

When en
tering a tunnel or crossing a bridge.
If any of the following malfunctions
occurs, do not use the system:
–

Follo
wing an impact on the windscreen close
to the camera or on the front bumper (versions
with radar).
–

B

rake lamps not working.
If the vehicle has undergone any of the
following modifications, do not use the
system:
–

Carrying long objects on roo
f bars.
–

Towing.
–

F

ront end of the vehicle modified (for
example by adding long-range headlamps or
painting the front bumper).
Malfunction
If the cruise control malfunctions,
dashes are displayed instead of
the cruise control speed setting.
If this warning lamp comes on,
accompanied by an alert message and an
audible signal, this confirms the malfunction.
Have the system checked by a dealer or a
qualified workshop.
Active Lane Keeping
Assist
Refer to the General recommendations on the use
of driving and manoeuvring aids.


Using a camera located at the top of the
windscreen, the system identifies lane markings
and steers the vehicle inside this lane to keep it in
the lateral position chosen by the driver.
This function is primarily suitable for driving on
motorways and main roads.
Conditions for operation
– Adaptive C ruise Control active.
– ESC s ystem operational.
–

ASR s
ystem activated.
–

No trailer det
ected.
–

No '
space-saver' spare wheel in use.
–

V
ehicle not subject to strong lateral g-forces.
–

Direction indic
ators not activated.
Activation/Deactivation



►  With the Adaptive Cruise Control with Stop &
Go function activated, press this button.
The action is confirmed by:
– The indicator lamp in the button lighting up
green.
– The following symbol being displayed on the
instrument panel.
The colour of the symbol on the instrument panel
depends on the operating status of the system:
(grey colour)
One or more operating conditions is not
met; the system is paused.
(green colour)
All operating conditions are met; the
system is active.
(orange colour)
System malfunction.
For vehicles equipped with a head-up
display, the information is projected onto
the blade.

110
Driving06
The system must not be activated in the
following situations:
–

D

riving with a "space-saver" type spare
wheel.
–

When t
owing, especially with an
unconnected or unapproved trailer.
–

Poor w
eather conditions.
–

D

riving on slippery road surfaces (risk of
aquaplaning, snow, ice).
–

D

riving on racing circuits.
–

D

riving on a rolling road.
Malfunction
A system malfunction is indicated
by the Service warning lamp coming
on and this (orange) symbol, accompanied by an
alert message and an audible signal.
Active Lane Departure
Warning System
Refer to the General recommendations on the use
of driving and manoeuvring aids.
Using a camera located at the top of the
windscreen to identify lane markings on the
road and at the edges of the road (depending on
version), the system corrects the trajectory of the
vehicle while alerting the driver if it detects a risk
of unintentionally crossing a line or hard shoulder
(depending on version).
This system is particularly useful on motorways
and main roads.


Conditions for operation
– Vehicle speed between 40 and 112 mph (65 and
180 km/h).
–

R
oad marked with a central dividing line.
–

St
eering wheel held in both hands.
–

Direction indic
ators not activated.
–

ESC s
ystem activated and operational.
The system helps the driver only if there is
a risk of the vehicle unintentionally
wandering from the lane it is being driven in. It
does not manage the safe driving distance,
vehicle speed or brakes.
The driver must hold the steering wheel with
both hands in a way that allows control to
be maintained in circumstances where the
system is not able to intervene (for example, if
the central dividing line disappears).
Operation
Once the system identifies a risk of the vehicle
involuntarily crossing one of the lane markings
detected or a lane limit (e.g. grass border), it
makes the necessary trajectory correction to
return the vehicle to its initial path.
The driver will notice a turning movement of the
steering wheel.
This warning lamp flashes during
trajectory correction.
The driver can prevent the correction by
keeping a firm grip on the wheel (during
an avoiding manoeuvre, for example).
The correction is interrupted immediately if
the direction indicators are operated.


While the direction indicators are on and for
a few seconds after switching them off, the
system considers that any change of trajectory is
intentional and no correction is triggered during
this period.
However, with the Blind Spot Detection system
activated, if the driver starts changing lanes and
another vehicle is detected in the vehicle's blind
spot, the system will correct the trajectory even
though the direction indicators are on.
For more information on the Blind Spot Detection,
refer to the corresponding section.
Driving situations and related alerts
The table below describes the alerts and messages displayed in different driving situations.
These alerts are not displayed sequentially.
Function status Indicator lamp Display and/or associated
messageComments
OFF


(grey)
Function deactivated.
ON

(grey) System active, conditions not met:
–
speed below 40 mph (65 km/h),
– no lane marking recognised,
– ASR/DSC systems deactivated or operation of ESC
system triggered,
– "sport" driving.
ON


(grey)
Automatic deactivation/standby of the function (for
example, due to detection of a trailer or use of the "space-
saver" spare wheel provided with the vehicle).
ON

(green) Lane marking detection.
Speed above 40 mph (65 km/h).

111
Driving06
If the system detects that the driver is not
holding the wheel firmly enough during an automatic correction of trajectory, it interrupts
the correction. An alert is triggered to encourage the driver to take back control of
the vehicle.
Driving situations and related alerts
The table below describes the alerts and messages displayed in different driving situations.
These alerts are not displayed sequentially.
Function status Indicator lamp Display and/or associated
messageComments
OFF


(grey)
Function deactivated.
ON

(grey) System active, conditions not met:
–

speed belo
w 40 mph (65 km/h),
–
no lane marking rec
ognised,
– ASR/DSC s ystems deactivated or operation of ESC
system triggered,
–

"
sport" driving.
ON


(grey)
Automatic deactivation/standby of the function (for
example, due to detection of a trailer or use of the "space-
saver" spare wheel provided with the vehicle).
ON

(green) Lane marking detection.
Speed above 40 mph (65 km/h).

112
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Function statusIndicator lamp Display and/or associated
messageComments
ON


(orange)/(green)
The system corrects the trajectory on the side where the
risk of unintentional crossing is detected (orange line).
ON




(orange)/(green)
"Hold the wheel" –

If
, while correcting the trajectory, the system determines
that the correction will not be enough and that a solid line
will be crossed (orange line): the driver is warned that they
must provide additional trajectory adjustment.
– If the st eering wheel is not held properly, an audible
warning sounds, accompanied by a message, until the
trajectory correction is completed or the driver has grasped
the steering wheel correctly.
The duration of audible warnings will increase if multiple
corrections are performed in quick succession. The warning
will become continuous, persisting until the driver responds.
Operating limits
The system goes into standby automatically in
the following cases:
–

ESC deactiv
ated or operation triggered,
–

speed belo
w 40 mph (65 km/h) or greater than
112 mph (180 km/h),
–

electric
al connection of a trailer,
–

use o
f the "space-saver" spare wheel detected
(as detection is not immediate, deactivation of
the system is recommended),
–

dynamic driving style det
ected, pressure on the
brake or accelerator pedal,
–

driving where there are no lane markings,
– activation of the direction indicators,
– cro ssing the inside line on a bend,
–

driving in a tigh
t corner,
–

inactivity b
y the driver detected during
correction.
The following situations may interfere
with the operation of the system or
prevent it from working:
–

insufficien
t contrast between the road
surface and the shoulders (e.g. shade),
–

lane markings w
orn, hidden (snow, mud) or
multiple (roadworks, etc.),
– running clo se to the vehicle in front (the lane
markings may not be detected),
–

roads tha
t are narrow, winding, etc.
Risk of undesirable operation
We recommend deactivating the system in the
following driving situations:
–
driving on damaged, unst
able or very slippery
(ice) road surfaces,
–

un
favourable weather conditions,
–

driving on a speed circ
uit,
–

driving on a rolling road.
Deactivation / Activation



►  Press this button to deactivate / reactivate
the system at any time.
Deactivation is signalled by the lighting of
the indicator lamp in the button and this
warning lamp in the instrument panel.
The system is automatically reactivated every
time the ignition is switched on.
Malfunction
In the event of a system
malfunction, these warning lamps
come on on the instrument panel, accompanied
by an onscreen message and an audible signal.
Have the system checked by a dealer or a
qualified workshop.
Blind Spot Detection
Refer to the General recommendations on the use
of driving and manoeuvring aids.

113
Driving06
Deactivation / Activation



►  Press this button to deactivate / reactivate
the system at any time.
Deactivation is signalled by the lighting of
the indicator lamp in the button and this
warning lamp in the instrument panel.
The system is automatically reactivated every
time the ignition is switched on.
Malfunction
In the event of a system
malfunction, these warning lamps
come on on the instrument panel, accompanied
by an onscreen message and an audible signal.
Have the system checked by a dealer or a
qualified workshop.
Blind Spot Detection
Refer to the General recommendations on the use
of driving and manoeuvring aids.


This system includes sensors, placed on the
sides of the bumpers, and warns the driver of the
potentially dangerous presence of another vehicle
(car, truck, motorcycle) in the blind spot areas of
their vehicle (areas hidden from the driver's field
of vision).


The warning is given by a fixed warning lamp that
appears in the door mirror on the side in question:
–

immedia
tely, when being overtaken;
–

a
fter a delay of about one second, when
overtaking a vehicle slowly.
Activation / Deactivation
It is set via the Driving / Vehicle touch
screen menu.
When starting the vehicle, the warning lamp
comes on in each mirror to indicate that the
system is activated.
The state of the system stays in the memory when
switching off the ignition.
The system is automatically deactivated
when towing with a towing device
approved by the Manufacturer.
Conditions for operation
– All vehicles are moving in the same direction
and in adjacent lanes.
–

The speed o
f your vehicle must be between
7 and 87 mph (12 and 140 km/h) (versions without
Park Assist or DS PARK PILOT) or between 19 and
87 mph (30 and 140 km/h) (versions with Park
Assist or DS PARK PILOT).
–

When o
vertaking a vehicle, the speed
difference is less than 6 mph (10 km/h).
–

When o
vertaken by a vehicle, the speed
difference is less than 16 mph (25 km/h).
–

Tra
ffic is flowing normally.
–

Ov
ertaking a vehicle over a certain period of
time and the vehicle being overtaken remains in
the blind spot.
–

Y
ou are driving on a straight or slightly curved
road.
–

Y
our vehicle is not pulling a trailer, a caravan,
etc.