Technology That Can Send the Right Help

Crashes happen, even to the best drivers. And the seconds and minutes following a collision are crucial.

With Automatic Crash Response1 and Injury Severity Prediction (ISP) from OnStar, you can be immediately connected to the right help. It’s this level of connectivity that is contributing to dramatic advances in vehicle safety by providing automotive engineers, emergency responders and medical personnel with critical information at critical moments.

The Connected Car: Driving Vehicle Safety Forward

Dr. Stewart Wang, a trauma surgeon and director of the University of Michigan International Center for Automotive Medicine, has dedicated his career to reducing the number of injuries caused by crashes. He lives by the mantra that getting the right person to the right place at the right time makes all the difference.

Dr. Stewart Wang
Director of the University of Michigan’s International Center for Automotive Medicine

Having accurate information from the scene about the conditions of the crash allows us to identify the exact injuries that are most likely.


Every Second Counts

Things happen fast in a crash, and you don’t always have time to react. It’s nice to know that with Automatic Crash Response (ACR) your car can immediately connect to help, even when you can’t.

Built‑in sensors in your OnStar-equipped vehicle can detect when a collision happens and within a millisecond begin collecting and analyzing data — including the change in velocity, the direction of impact, if there were multiple impacts, whether or not the air bags deployed, and if there has been a rollover. This data is then transmitted to an EMD-certified OnStar Emergency Advisor who is connected to your vehicle to make sure you’re OK.

Injury Severity Prediction (ISP) technology enhances these emergency services with an algorithm that can help predict the likelihood of severe injury. Make sure your next car is equipped with ACR.

Dr. Stewart Wang
Director of the University of Michigan’s International Center for Automotive Medicine

ISP helps the EMS know before they show up at the scene whether they need to go to a level one trauma center or not.

Using GPS technology, an OnStar Advisor determines your exact location and relays your coordinates along with all of the crash data to emergency responders. Knowing if there is a high likelihood of severe injuries allows emergency responders to determine what resources to dispatch to the scene and where to take you for care — saving valuable time. First responders can then relay the crash data to medical personnel — better preparing doctors and allowing them to provide the best treatment possible. Learn more about the benefits of OnStar Emergency Services.

Dr. Stewart Wang
Director of the University of Michigan’s International Center for Automotive Medicine

Safety Is at the Core

Automakers today are staying one step (or three car lengths) ahead by merging performance and design with cutting-edge safety technology to make cars that are much safer to drive. OnStar was the first in the industry to develop built‑in telematics and available automatic crash notification technology to connect drivers to help in a crash and has responded to more than 5.2 million emergencies since 1996.

Jeff Boyer, Vice President of Global Vehicle Safety at General Motors, says nothing is more important than vehicle safety.

Jeff Boyer
VP of Global Vehicle Safety at GM

We can’t get a better compliment than knowing we helped a customer when they needed it most.

Technology Changes Lives

Thanks to continuing innovation and constant connectivity, you can get the timely help you need. More than six million Members rely on OnStar to connect them to help when they need it. Hear how OnStar technology and specially trained Advisors helped these Members after a crash:

Celebrating Life After Her Crash

I calmed down as soon as I heard the OnStar voice. I knew help was on the way.

New Memories, New Beginnings After Her Crash

My granddaughter was just four when I had that crash. I’ve been able to enjoy all of these years with her since then, and I’m so grateful for that.


When it comes to your safety and the safety of your family members and loved ones, your connected car works to help OnStar, EMS and medical providers know more, so they can react faster and provide life-saving care.

Here’s an overview of how this technology works during a crash:

ISP Helps Save More Lives

We’ve come a long way from safety belts and air bags to high‑tech safety features that can help drivers avoid collisions altogether. And if one is unavoidable, these services can help predict the likelihood of severe injuries and get you the help you need.

When we combine data with connectivity, our time spent on the road becomes safer. This is the future of the connected car. Learn about the other services OnStar has to offer.

Jeff Boyer
VP of Global Vehicle Safety at GM

Almost always, they remember one thing. If their vehicle had OnStar, they remember that reassuring voice that said, ‘Are you OK?’