OnStar now offers its safety features through a phone app

You no longer need to be in your car to use OnStar’s safety features. GM just launched an app for Android and iOS, Guardian, that brings OnStar to phones for the first time. So long as you have an active OnStar plan, as many as eight people can use the service’s safety features whether or not they’re in a car. You can reach emergency advisors, share locations between family members and get roadside assistance. This may also provide a safety net if you’re in another car (when that’s an option, at least) — a Mobile Crash Response feature uses your phone’s motion sensing to detect a collision and, on Android, automatically connect you to an OnStar advisor.

Guardian is available in the US and Canada, and those who jump in by July 31st get a free six months of use.

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