Reuters - May 26, 2007

Nissan North America has a warning for customers: Placing your electronic key too close to your cellphone could leave you stranded.

The automaker is asking customers driving new models of two of its flagship sedans to keep their car keys and cellphones at least an inch apart to avoid disabling the "intelligent keys."

Cellphones kept near Nissan's I-Keys — wireless devices designed to allow drivers to enter and start their cars at the push of a button — can erase the electronic code on the keys, rendering them unable to unlock or start the cars.

Spotted here

The problem has occurred on the 2007 Nissan Altima and Infiniti G35 sedans, two top-selling models, the company says.