OnStar announced it is offering its safety, security and connectivity services for non-GM and older GM vehicles already on the road, in response to repeated customer requests.

A standalone rearview mirror packing all of OnStar's core technology will be available this spring through consumer electronics retailers, and is compatible with most top-selling vehicles from major manufacturers, according to the company.

The OnStar retail product offers the key features that have made OnStar's "blue button" an icon, including Automatic Crash Response, Turn-by-Turn Navigation, Stolen Vehicle Location Assistance, one-button access to emergency and roadside services, and hands-free calling, including Bluetooth connectivity.

OnStar will offer the mirror in the United States through Best Buy, its first strategic retail partner, beginning in spring 2011. The product will also be available through other selected consumer electronics retailers. The mirror will be priced at $299, plus installation (expected to cost between $75 and $100). A range of service plans will be available, starting at $18.95 a month or $199 a year.

Currently, the OnStar mirror is certified to work on 99 percent of the top 20 selling non-GM vehicles over the last 10 years, or approximately 55 million cars and trucks. OnStar expects to certify additional models in the months ahead.

Key features of the OnStar mirror include:

• Automatic Crash Response. An accelerometer built into OnStar the mirror detects the sudden shock of an impact from the front, side, or rear of the vehicle and automatically calls an OnStar advisor. If the driver doesn't respond, or responds to say there has been a crash, an OnStar advisor will direct emergency responders to the exact GPS location of the vehicle.

• Link to Emergency Services. By pressing OnStar's red emergency button, drivers are immediately connected to a specially trained emergency advisor for assistance in situations occurring inside or outside of their vehicle.

• Stolen Vehicle Location Assistance. If the vehicle is reported stolen to local law enforcement, OnStar subscribers can call 1-888-4-OnStar (1-888-466-7827) from any phone. OnStar advisors, available 24/7, can attempt to locate the vehicle through the mirror's internal GPS and provide the location to law enforcement.

• Turn-by-Turn Navigation. With OnStar's most popular service, drivers can press OnStar's blue button and ask OnStar advisors for directions to a specific location or ask the advisor to find a point of interest such as a gas station or nearby restaurant. The directions are then downloaded to the OnStar system, which provides spoken turn-by-turn directions for reaching the destination.

• Roadside Assistance. In non-emergency situations, drivers can push the blue button or call 1-888-4-ONSTAR for help with problems such as keys locked in the vehicle, a flat tire, or running out of gas.

• Hands-Free Calling. OnStar allows drivers to make hands-free, voice-activated calls either through a Bluetooth connection to the driver's mobile phone or through prepaid packages of minutes purchased through OnStar.

All these services are available directly through the OnStar mirror, without requiring the driver to bring along a mobile phone or even own a mobile phone. In the event of an accident, emergency services are alerted even if there is no mobile phone in the vehicle, the phone is damaged in a crash or the driver is unable to use a phone.

For more information on OnStar's innovation, the new OnStar mirror and a list of the compatible vehicles at launch, visit www.onstar.com.