Apologies if this is the wrong page

I am trying to program my key fob for my 2005 350z but I am not having any luck.

I have followed all steps that I have read online:
1. Enter car and lock the doors using driver side switch but only the passenger door locks so I have to manually lock drivers (could this be the problem? They do both lock if I press the drivers lock.
2. Insert key in ignition 6 times
3. No lights flash but the doors do unlock themselves
4. Insert key into ignition once again, 2 clicks to ACC position.
5. I press lock button on key fob, and nithing
6. Remove key from ignition
7. Open door using driver side switch

new battery fitted, I have 2 remotes original and a new one.

 

I am certain you know already this.: You must program the new FOB and the two old FOB's as well (all three need to be reprogrammed).

 

not needed, I know I didn't when I programmed mine.

Dont program two cars close to each other within 5 minutes either, my moms G and dad's Frontier now share a remote

to the OP, simple to do, the door lock could be your issue. Need to look up the sequence myself

 

That's interesting. I had to reprogram my old FOB when I replaced one of them. I have a 2003. These are the instructions I received with the FOB.

1. Close and lock all doors with the driver’s side power lock/unlock switch.
2. Insert key into ignition and remove it from the ignition key cylinder at least six times within 10 seconds. Your Hazard Lamps will flash if you have performed this step successfully. NOTE: Withdraw key completely from ignition cylinder each time. If this procedure is performed too fast, system will not enter programming mode.
3. Insert key into the ignition cylinder and turn to the ACC position.
4. Within 5 seconds, push ANY button on the remote transmitter. Your Hazard Lamps should flash. NOTE: Do not press the button more than one time in the above step. If the button is pressed more than one time, the programming procedure will not be successful.
5. If there are any remaining transmitters (including the old ones), unlock then lock all doors using the driver’s side power lock/unlock switch and within 5 seconds, push ANY button on the next remote. Your Hazard Lamps should flash. Repeat this step for each transmitter (including any existing transmitters).
6. Turn the key to the OFF position, remove keys from the ignition, unlock doors using the driver’s side power lock/unlock switch and open the driver side door.

 

terrasmak made a good point, and I should have described this (updating the "old/existing" FOBs) as resetting instead of saying (as I did) reprogramming. It's only the 5th step (step "e" in my post) that applies to old/existing FOBs. That was what terrasmak points out.