How do you program a 2002 Nissan Frontier remote key?

put the key six times in ten secs. push the button manually lock and unlock the drivers door then push the button on any extra remotes repeat for up to four remotes

its is so easy just put the key three time in the ignition, then press the remote button soon it'll program the remote

I'm a Nissan Master tech.
The real deal. get into the truck use the lock switch on the door lock the truck. Push the key into the ignition lock and out of the lock six times in ten seconds. The turnsignal indicators will flash twice turn the ingnition to acc. the posistion where the warning lights light up around the speedometer turn on, Then push any button on the remote and turnsignal indicators will flash twice Second remote unlock and relock the door with the switch push any button on the second remote you may be able to have as many as five remotes. But you must program all the remotes you want to use simultaneously.