DETROIT – Owners of most new 2011 Chevrolet,

Cadillac, Buick and GMC vehicles will soon be able to control key vehicle

functions from their smart phones, thanks to the power of OnStar.

Chevrolet, Cadillac, Buick and GMC are developing brand-specific mobile

applications that will leverage OnStar technology to allow vehicle owners

to activate all of the functions available on a traditional vehicle key fob

– remote start, horn and lights and door lock/unlock – from their

smartphones. This means drivers will no longer have to be within a

requisite distance, or even have their keys with them, to control these

functions on their vehicles.

“Giving our customers control of their vehicles with smart phone

application technology is a key advantage of OnStar’s in-vehicle

connectivity,” said Chris Preuss, OnStar president. “This technology

empowers drivers to make decisions about their travels well before they

enter the vehicle, meaning their full attention can stay where it needs to

be – on the road ahead.”

For example, say someone is racing to catch a flight and realizes at

the gate that he forgot to lock his vehicle. OnStar’s mobile app technology

allows him to sign into his Chevrolet, Cadillac, Buick or GMC app and send

a remote lock signal to his vehicle, giving him the peace of mind to go on

with his trip knowing his vehicle is secure.

Or, for example, a family attending a baseball game on a hot summer day

could remotely start their vehicle as they are leaving the ballpark, so the

vehicle is cooled to a comfortable temperature by the time they reach it.

In addition, the Chevrolet, Cadillac, Buick and GMC apps will leverage

OnStar’s unique connection to the vehicle to provide key diagnostic

information, including fuel tank level and range, remaining oil life,

current and recommended tire pressure and lifetime average miles per gallon

. The diagnostic information is current as of the last vehicle start,

giving OnStar subscribers an up-to-date health report of their vehicle

anytime they need it.

Important vehicle information, such as current odometer reading,

vehicle VIN and OnStar account number also will be readily accessible

within the apps. And should OnStar subscribers need assistance with

something that the mobile apps don’t provide, they can one-touch dial to

specially trained advisors, who are available to assist customers 24 hours

a day, seven days a week.

The OnStar mobile app services will be available for the vast majority

of vehicles in the 2011 Chevrolet, Cadillac, Buick and GMC portfolios,

including the just-launched Chevrolet Cruze and Cadillac CTS Coupe, and are

currently functional on the iPhone and Android systems. The Chevrolet,

Cadillac, Buick and GMC mobile applications will offer a variety of other

features tailored specifically for each brand’s customers that will be

revealed in totality when the brands begin bringing their apps to market in

the months ahead.

“We’re working aggressively to bring the Chevrolet, Cadillac, Buick and

GMC applications to market as soon as possible,” says Joel Ewanick, vice

president, GM Marketing. “Because we know that each brand’s customers have

different tastes, wants and needs, the apps will be very specifically

tailored to offer them the services they value most, leveraging these

innovative OnStar features as a compelling mutual foundation.”

OnStar and Chevrolet announced the auto industry’s first working

smartphone application for the Chevrolet Volt at the 2010 Consumer

Electronics Show. The Volt mobile application is a unique app that will be

available to customers in tandem with the launch of the vehicle, as

previously announced.

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