2008 Other Toyota Models KEY FOB

As I don't have any info on the non US imports all I can do is go by it sister model the 4 Runner. So here is the instructions for that hope they work. I found these on Program your remote.

First start with the key out of the ignition, drivers door is open all others closed and
drivers door is unlocked.
Second, perform these steps within 5 seconds.
A. Insert the key into the ignition(Do NOT Turn) Pull key out.
B. Insert the key into the ignition(Do NOT Turn) Pull key out.

3. Perform these steps within 40 seconds.
A. Close then open the drivers door.
B. Close then open the drivers door.
C. Insert the key into the ignition(Do NOT Turn) Pull key out.

4. Perform these steps within 40 seconds.
A. Close then open the drivers door.
B. Close then open the drivers door.
C. Insert the key into ignition and leave it in ignition.
D. Close the drivers door.
E. Turn the ignition to ON (Do NOT Start) then back to OFF.
F. Remove the key from the ignition.

5. Within 3 seconds, the power door locks should lock then unlock automatically
indicating successful entry into programming mode.
Return to step 1 if the locks do not cycle at this point.

6. Perform these steps within 40 seconds.
A. Press the lock and unlock buttons on the remtoe simutaneously for 1.5 seconds.
B. Immediately after letting go of the lock and unlock buttons,
Press the lock button by itself and hold for 2 seconds. Within 3 seconds, the door
locks should lock and then unlock once indicating successful programming. If
the door locks cycle twice, repeat steps A and B in step 6 as the remote was
not accepted.
C. Repeat steps A and B in step 6 for each new remote.

7. Open drivers door.

OK if the keyless function is not working it may be that it isn't triggered to work. As you said it may be disabled. Now the only way to enable it if that is the case is to scan it and get into the body control module and turn on the option. Now I did find that the there a tranmitter on the truck under the hood see pic included. Now as for the Fob programming it looks like it was not correct I found something different with some deeper digging. The other procedure that I sent is if you have the transmitter code so you manually program it but you don't have that code. So here is another way to do it without the code, however you need a techstream display to do this so you may need to take to the dealer the first time. First use the pic below to see if your truck was set up for keyless entry, if this part (wireless door lock buzzer) is missing then you don't have a keyless option.