Hummer 2004 H2 User Manual download pdf (Page 453)

Vehicle Data Collection and Event

Data Records

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 air bag

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 or near crash event by computer systems

commonly called event data recorders (EDR).

In a crash or near crash event, computer systems, such

as the Air Bag Sensing and Diagnostic Module (SDM)

in your vehicle may record information about the

condition of the vehicle and how it was operated, such

as engine speed, brake applications, throttle position,

vehicle speed, safety belt usage, air bag readiness, air

bag performance data, and the severity of a collision.

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 SDM 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.

Others, such as law enforcement, may have access to

the special equipment that can read the information

if they have access to the vehicle or SDM.

If your vehicle is equipped with OnStar

, please check

the OnStar

subscription service agreement or

manual for information on its operations and data

collection.

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Hummer 2004 H2 User Manual Page 453

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