September 17, 2004


GM expands OnStar’s automatic crash notification for 2005

Detroit – General Motors announced that its Advanced Automatic Crash Notification
(AACN) system is now available on a dozen more new 2005 GM models equipped with
OnStar.

AACN makes emergency information available to 911 centres so that they can send the
appropriate life-saving personnel and equipment to crash scenes faster.

Using a collection of sensors, AACN automatically calls an OnStar advisor if the
vehicle is involved in a qualified frontal, rear or side-impact crash, regardless of
air bag deployment. AACN provides crash severity information to OnStar advisors, who
relay it to 911 dispatchers. AACN systems can determine the severity of crash,
direction of impact, air bags deployed, multiple impacts and rollover (if equipped
with appropriate sensors).

“We know that shortening the time to treatment by EMS and trauma physicians can make
a big difference in survival and recovery,” said Jeffrey W. Runge, M.D.,
administrator of the National Highway Traffic Safety Administration. “This
technology should result in better response times after a crash when travelling in
less populated areas, and more accurate information to EMS dispatchers even in the
city.”

Traffic safety and emergency medical experts say AACN may be especially important in
rural areas, where there may not be a passerby to report a crash and few local
hospitals equipped to treat the kinds of injuries sustained in severe crashes. Sixty
percent of U.S. fatalities are in rural areas, even though rural areas account for
only 20 percent of the total annual crashes.

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