Chevrolet Spark EV 2014 Owner's Manual page 338

The vehicle has a number of
computers that record information
about the vehicle s performance and
how it is driven. For example, the
vehicle uses computer modules to
monitor and control electric drive
unit performance, to monitor the
conditions for airbag deployment
and to deploy them in a crash, and,
if equipped, to provide antilock
braking to help the driver control the
vehicle. These modules may store
data to help the dealer technician
service the vehicle. Some modules
may also store data about how the
vehicle is operated, such as rate of
fuel consumption or average speed.
These modules may retain personal
preferences, such as radio presets,
seat positions, and temperature
settings.
This vehicle is equipped with an
event data recorder (EDR). The
main purpose of an EDR is to
record, in certain crash or near
crash-like situations, such as an air
bag deployment or hitting a road
obstacle, data that will assist in
understanding how a vehicle s
systems performed. The EDR is
designed to record data related to
vehicle dynamics and safety
systems for a short period of time,
typically 30 seconds or less. The
EDR in this vehicle is designed to
record such data as:
How various systems in your
vehicle were operating;
Whether or not the driver and
passenger safety belts were
buckled/fastened;
How far (if at all) the driver was
depressing the accelerator and/
or brake pedal; and,
How fast the vehicle was
traveling.
These data can help provide a
better understanding of the
circumstances in which crashes and
injuries occur. NOTE: EDR data are
recorded by your vehicle only if a
non-trivial crash situation occurs; no
data are recorded by the EDR under
normal driving conditions and no
personal data (e.g., name, gender,
age, and crash location) are
recorded. However, other parties,
such as law enforcement, could
combine the EDR data with the type
of personally identifying data
routinely acquired during a crash
investigation.
To read data recorded by an EDR,
special equipment is required, and
access to the vehicle or the EDR is
needed. In addition to the vehicle
manufacturer, other parties, such as
law enforcement, that have the
special equipment, can read the
information if they have access to
the vehicle or the EDR.