brakes Citroen JUMPY 2009.5 2.G Owner's Manual

ESP
79
Driving safety
SAFETY
4
TRACTION CONTROL (ASR) AND DYNAMIC STABILITY CONTROL (ESP)
These systems are linked and complement
the ABS.
The ASR system is very useful for
maintaining optimum drive and avoiding
losses of control of the vehicle on
acceleration.
The system optimises drive to prevent the
wheels skidding, by acting on the brakes of
the drive wheels and on the engine. It also
allows the directional stability of the vehicle
to be improved on acceleration. acts on the engine and the brake of one
or more wheels, in order to put the vehicle
back on course.
Disarming the ASR/ESP systems
In certain exceptional conditions (starting
the vehicle when stuck in mud or snow, or
on loose ground...), it could prove useful to
disarm the ASR and ESP systems to make
the wheels spin and regain grip.
- Press the button, located on the centre
console.
- The indicator light comes on: the ASR and ESP systems no longer act. Operating check
Good practice
The ASR/ESP systems offer increased
safety during normal driving, but should not
incite the driver to take risks or to drive at
high speed.
The operation of these systems is ensured
if the recommendations of the manufacturer
regarding the wheels (tyres and rims),
the braking components, the electronic
components and the fitting and repair
procedures within the CITROËN network are
observed.
After an impact, have these systems
checked by a CITROËN dealer.
Use the ESP to hold your course without
attempting to countersteer.
If there is a variation between the trajectory
followed by the vehicle and that required
by the driver, the ESP system automatically Operation of the ASR and ESP
systems
The luminous diode flashes when
the ASR or ESP is triggered.
They engage again:
- automatically above 30 mph (50 km/h),
- manually by pressing the button again. When a malfunction of the
systems occurs, the indicator light
comes on, accompanied by an
audible signal and a message on
the display.
Contact a CITROËN dealer to have the
system checked.
The warning light may also come on if the
tyres are under-inflated. Check the pressure
of each tyre.

92
Towing a trailer
On the contrary, use a high gear to lower the
engine speed and reduce your speed.
In all cases, pay attention to the coolant
temperature.
Tyres : check the tyre pressures of the
towing vehicle (see the "Identification
features" section of chapter 8) and of
the trailer, observing the recommended
pressure. Towbar
We recommend the use of original
CITROËN towbars and their harnesses,
which have been tested and approved from
the design stage of your vehicle, and that
you entrust the fitting of this equipment to a
CITROËN dealer.
If this equipment is not fitted by a CITROËN
dealer, it is imperative that it is fitted using
the electrical pre-equipment installed at the
rear of the vehicle and in accordance with
the manufacturer ’s instructions.
In accordance with the general instructions
a reminder of which has been given above,
we draw your attention to the risk linked with
fitting a towbar or electrical accessory not
recommended by CITROËN. Fitting such
equipment could result in the failure of your
vehicle’s electronic system. Please contact
a CITROËN dealer for information before
fitting this type of equipment.
See the "Levels" section of chapter 6.
Good Practice
In certain cases of particularly arduous
use (towing the maximum load up a steep
slope in high temperatures), the engine
automatically limits its power. In this
case, the automatic cutting off of the air
conditioning allows the engine power to be
recovered.
If the coolant temperature warning
light comes on, stop the vehicle
and switch off the engine as soon
as possible.
Brakes
Towing increases the braking distance. Drive
at a moderate speed, change down early
and brake gradually.

Side wind
Sensitivity to side wind is increased. Drive
smoothly and at a moderate speed.

ABS/ESP
The ABS or ESP systems only control the
vehicle, not the trailer or caravan.

Rear parking assistance
The assistance does not function while the
vehicle is towing.