How do you reset the immobilizer in a 2010 Nissan Altima?

To reset the immobilizer in a 2010 Nissan Altima, first ensure that all doors are closed and the key is in the "OFF" position. Insert the key into the ignition and turn it to the "ON" position without starting the engine. Leave it in the "ON" position for about 10 minutes until the security light stops blinking and stays on. Turn the key back to "OFF," then start the engine. If the immobilizer issue persists, consult the vehicle's manual or a professional technician.