Chevrolet 2006 Tahoe Specifications download pdf (Page 516)

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Vehicle Data Collection and Event

Data Recorders

Your vehicle, like other modern motor vehicles, has a

number of sophisticated computer systems that monitor

and control several aspects of the vehicle’s performance.

Your vehicle uses on-board vehicle computers to monitor

emission control components to optimize fuel economy,

to monitor conditions for airbag deployment and, if so

equipped, to provide anti-lock braking and to help the

driver control the vehicle in difficult driving situations.

Some information may be stored during regular

operations to facilitate repair of detected malfunctions;

other information is stored only in a crash event by

computer systems, such as those commonly called event

data recorders (EDR).

In a crash event, computer systems, such as the Airbag

Sensing and Diagnostic Module (SDM) in your vehicle

may record information about the condition of the vehicle

and how it was operated, such as data related to

engine speed, brake application, throttle position, vehicle

speed, safety belt usage, airbag readiness, airbag

performance, and the severity of a collision. If your

vehicle is equipped with StabiliTrak

, steering

performance, including yaw rate, steering wheel angle,

and lateral acceleration, is also recorded. This

information has been used to improve vehicle crash

performance and may be used to improve crash

performance of future vehicles and driving safety.

Unlike the data recorders on many airplanes, these

on-board systems do not record sounds, such as

conversation of vehicle occupants.

To read this information, special equipment is needed

and access to the vehicle or the device that stores

the data is required. GM will not access information

about a crash event or share it with others other than:

• with the consent of the vehicle owner or, if the

vehicle is leased, with the consent of the lessee,

• in response to an official request of police or similar

government office,

• as part of GM’s defense of litigation through the

discovery process, or

• as required by law.

In addition, once GM collects or receives data, GM may:

• use the data for GM research needs,

• make it available for research where appropriate

conﬁdentiality is to be maintained and need is

shown, or

• share summary data which is not tied to a speciﬁc

vehicle with non-GM organizations for research

purposes.

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