1 5 0 Intelligent t e chn o log y
Intelligent technology
Notice about data
recorded by vehicle
control modules
Your veh icle is not equipped with an Event Da-
ta Recorder (EDR), installed by some manu-
facture rs fo r the express purpose of capturing
data for retrieval after an accident or cras h
event. EDR's are sometimes called "crash re-
corders".
Some state laws restrict the retrieval or down-
loading of data stored by EDR's that were in-
stalled in a vehicle for the express purpose of
retrieving data after an accident or crash
event without the owner's consent.
Although your vehicle is not equ ipped wit h an
EDR, it is equipped with a number of elect ron-
ic control modules for various vehicle systems
such as, for examp le, eng ine function, emis-
sion control, as well as for the airbags and
sa fety belts .
These electron ic control modules also record
vehicle-re lated data du ring norma l vehicle op-
er ation for diagno stic and repa ir purposes .
The recording capacity of the elec t ronic con-
trol modules is limited to data (no sound is re-
corded) and only a small amount of data is ac-
tually recorded ove r a ve ry limited pe riod of
time and stored when a system fault or other
condition is sensed by a cont ro l unit . Some of
the data t hen stored may re late to vehicle
speed, direction, braking as we ll as restraint
syst em use and performanc e in the event of a
crash or other condition. Stored data can only
be read and downloaded with special equip-
ment .
Electronic Stabilization
Program (ESP)
The Electronic Stabilization Program increas-
es driving stability .
Fig. 133 Center conso le with~ butto n
Intent and purpose
The Anti-Lock Brake System (ABS), Elect ronic
Differential Lock (EDL) a nd Anti-Slip Regula -
tion System (ASR) are integrated in the Elec-
tronic Stabilization Program (ESP).
It increas -
es control over the vehicle in handling condi-
tions close to the limit of "gr ip", such as when
acce lerat ing and cornering .
It reduce s t he risk
of skidd ing under all road conditions and at
all speeds and improves vehicle stability .
When road condit ions are poor, ESP makes it
easier to start from a complete stop as well as
acce le rate a nd d rive up hills . ESP switches o n
automatica lly when you start the engine. It
shou ld normally be activated at a ll t imes be -
cause this ensures optimum veh icle stability .
Critical driving situations
Wit h an oversteering vehi cle (t he vehicle
tu rns too sharply and the rear wheels slide t o-
ward the outside of a cu rve), ESP primari ly
brakes the outside front wheel, with an
un-
dersteering vehicle (the vehicle does not turn
sharp ly enough and pushes out of a curve) it
brakes the inside rear whee l or other addition-
al wheels. This brake inte rvent ion is accompa-
nied by noises .
If the speed of a wheel s lows down too much
rela t ive to vehicle speed while braking and it
starts to lock, brake pressure to this whee l is
reduced . This adjustment process can be felt ..,.
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