is it as simple as finding a new key and following the steps to get the car to learn the chip? or do i need a key cut for an EL / my specific barrel?

Cheers

I just got a key cut for my cars

It's only the remote you need to learn i think.

the keys cost about $30

the key you will need the have cut, as for remote read below...


Adding and Removing remote Keypads to the Smartlock module
Up to four Keypads can be programmed and used with the Smartlock Remote Central locking system.
If you have replaced the BEM, or new keypads are being added to the system, you will need to train the keypad codes to the module.

1. The ignition switch should be in the Off position, with all the doors shut and Unlocked.
2. Turn the ignition key to the ACCESSORY position and within 5 seconds, operate the rear demister switch exactly three times in quick succession. (IE. Press the switch so the Demister light turns on, then off, then back on again.) if this does not work then use the boot release button.
3. After the 5 seconds is up, the door locks will change state, to indicate that the BEM has entered keypad learn mode. (if this does not work then use the boot release button insted of the rear demister).
NOTE : All existing keypads at this point, have been erased from memory !
4. Press either buttons on the keypad that is to be trained. The door locks will change state twice, to indicate that the keypad has been added to the BEM memory.
5. Follow step 4. for each keypad that is to be added to the BEM memory. A maximum of 4 keypads can be added to the BEM memory.NOTE : You must teach all remote keypads for the Smartlock module, before proceeding.
6. When you have thought all the remote keypads, turn the ignition to the Off position to leave the learn mode. The door locks will change state to indicate a return to normal mode.
7. Check the function of both buttons on each keypad, to ensure that the keypad has been trained.