The method involves scrambling cell phone signals in cars.
LaHood appeared on a cable TV show Friday, and said technology can be installed to restrict cell phone use while the car is turned on. He also talked about the new 'distracted driver campaign' being launched on his department's website.
A big theme at this year's Los Angeles Auto Show is electric cars. The 2011 Chevrolet Volt is powered by electricity but also includes a gas-powered onboard generator, which it rarely uses.
Honda meanwhile marked the global debut of its new plug-in electric car. The new Fit will be available for customers in 2012 and has a range of between 70 and 100 miles before it needs recharging.
The iPhone and Cobra Radar have mated, and the iRadar is born. It alerts drivers to radar and laser guns, speed and red light cameras, speed traps and dangerous intersections all with the ease of a smartphone.
The radar plugs into the smartphone using its Bluetooth, GPS and internet services. The iRadar will set you back about $170.