The official notice
Defect
On vehicles equipped with a jackknife-type folding key, over time the key blade may not stay locked in the fully extended (open) position. If you drive the vehicle with the key in the partially folded position, you could bump the ignition key and turn the engine off. This can cause a sudden loss of engine power, power steering and power brakes. This could also cause the airbags not to deploy in a crash. Note: This recall only affects vehicles that have an "S" trim level.
Safety Risk
Airbags that do not deploy in a crash could create an increased risk of injury. A loss of power brakes can cause a sudden increase in brake pedal force and lead to an increase in stopping distance. A loss of power steering assist can cause a sudden increase in steering effort. A sudden loss of engine power could also increase the risk of a crash.
Remedy
Nissan will notify owners by mail and advise you not to attach any accessories to the key fob, and to ensure that the key is fully extended before driving. As an interim repair, a dealer will install a fastener in the key slot to prevent the key from folding. Once replacement parts are available, you will need to return to a dealership to have a spacer inserted into the slot of the key fob that will stop if from collapsing.