Intelligent keys are coming out with lots of new models of cars. Many times they make life a little easier, but the smart key for the new Nissan Altimas have had just the opposite effect. If your smart key is right next to your cell phone and your phone rings, the I-key is permanently disabled. There is no way to fix it, and these I-key’s cost about $400 a pop. Nissan is including I-key malfunctions under the factory warranty so if you have been affected by this, call the dealer you bought your car from.