Next week the 3G faces shutdown

The looming shutdown of 3G networks won't just impact older phones.

With AT&T's 3G network shutting down next week (on February 22), and other carriers following suit later this year, a range of products require updates to continue working, including some home alarm systems, medical devices such as fall detectors, and in-car crash notification and roadside assistance systems such as General Motors' OnStar.

Just as many mobile carriers have urged customers to swap their older 3G iPhones, Android phones, e-readers and other handheld devices for newer models ahead of the shutdown, other businesses are urging customers to upgrade or replace some of the everyday products and services in their homes and cars before they drop connectivity.

If left unaddressed, the stakes could be high in certain cases. Millions of cars, for example, may no longer have the ability to contact first responders after a collision or receive updates such as location or traffic alerts for built-in GPS systems. Some vehicles, including Chevrolet, Buick and Cadillac, have software upgrades for drivers to connect their systems to a 4G network, but other models will reportedly lose this feature for good.