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TL Switchblade Key Not Working With Old Set

1964 Views 4 Replies 3 Participants Last post by  BigBurton13
Got my TL Type-S switchblade key and I also have my old remote. I programmed my new key and everything works fine but my old one doesn't work. The remote won't lock and unlock or open the trunk. For some reason, I can only sync one or the other with the car. Any reason why?
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are both keys Memory 1 or Memory 2? Also, how many remotes do you have in total? Our cars can only accept up to 3 remotes, which may or may not be an issue here.
Did you bring the old keys to the place you had program your switchblade key?

If not, then that is your issue. When programming the TL switchblade key (or any key for that matter) you need to bring all keys in order to make sure all get programmed at the same time. The ECU does not hold memory for programmed keys. Once a new key programming sequence is started, it wipes all keys.

Source: I had my TL key programmed and forgot one and now it's just a dummy one. Opens the doors manually though.

As for the remote programming:

You can find instructions online fairly easy. There is a process that makes our cars go into learn mode for key fobs. I'm sure Google can assist you.
I have 2 original keys and the TL switchblade key. I only have 1 original remote though. I brought all of them to the dealer when they programmed it. They said they couldn't program the remote and I'd have to do that myself but they did program the key to the ECU and that works fine. I don't have memory keys either. I have a 2004 that didn't come with that feature.
Found after searching with the Google Machine...

Storing transmitter codes:

The codes of up to three transmitters can be stored into the keyless receiver unit memory. (If a fourth code is stored, the code which was input first will be erased.)

NOTE: It is important to maintain the time limits between the steps. Make sure the doors, the hood and the tailgate are closed.

1. Turn the ignition switch to ON (II).

2. Within 1 to 4 sec, press the transmitter lock or unlock button with the transmitter aimed at the keyless receiver in the power window master switch. (located by the driver’s window switches)

3. Within 1 to 4 sec, turn the ignition switch OFF.

4. Within 1 to 4 sec, turn the ignition switch ON (II).

5. Within 1 to 4 sec, press the transmitter lock or unlock button with the transmitter aimed at the keyless receiver in the power window master switch. (located by the driver’s window switches)

6. Within 1 to 4 sec, turn the ignition switch OFF.

7. Within 1 to 4 sec, turn the ignition switch ON (II).

8. Within 1 to 4 sec, press the transmitter lock or unlock button with the transmitter aimed at the keyless receiver in the power window master switch. (located by the driver’s window switches)

9. Within 1 to 4 sec, turn the ignition switch OFF.

10. Within 1 to 4 sec, turn the ignition switch ON (II).

11. Within 1 to 4 sec, press the transmitter lock or unlock button with the transmitter aimed at the keyless receiver in the power window master switch. (located by the driver’s window switches)

12. Confirm you can hear the sound of the door lock actuators within 1 to 4 sec, then push transmitter lock or unlock button again, or the code will not be stored.

13. Within 10 sec, aim the transmitters (up to two additional ones) whose codes you want to store in the keyless receiver, and press the transmitter lock or unlock buttons.
Confirm that you can hear the sound of the door lock actuators after each transmitter code is stored.

14. Turn the ignition switch off, and remove the key.

15. Confirm proper operation with the transmitters.
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