Remote key fob programming issue

(Video explanation below)

I bought a key fob set off Amazon after seeing a couple videos on how it’s done. I went into the programming mode the remote sent a signal to the car showing that it is reading the remote but when I exit programming mode the remote does not tell the car to unlock the doors.

I’m curious if anyone has a issue or if they know any ways to get around it.

I’ve already removed aftermarket signal systems from the car for a broken remote start system.

 

Are you sure you have the correct FCC ID Number on the new FOB? It has to be the same.


Here are the complete process for programming the remote FOBS. You may want to clear everything and reprogram the truck to receive the FOBs you have. Note: The info in RED for other models.

Try this. There are 4 modes. You should use Rewrite Mode to start over and only program the remotes you want to use.

There are four different programming commands when setting up or verifying your remote transmitter, they are:

1. Add mode, used to add a remote to your car that is not currently registered.
2. Rewrite mode, used to erase all previously registered remotes and allow you to begin again the programming process.
3. Confirmation mode, used to verify the number of remotes that are already programmed in your car.
4. Prohibit mode, to prohibit all remotes from operating the door locks.

https://www.carandtruckremotes.com/...eplacement-keyless-entry-control-remotes.html

Procedure To Program Toyota Wireless Remote Transmitters:

Begin with: The driver's door open and unlocked. Key out of the ignition.

1. Insert and remove the key from the ignition switch 2 times within 5 seconds.

NOTE: Steps 2 and 3 should be performed within 40 seconds.

2. Close and open driver's door TWICE.

3. Insert the key into the ignition and remove it.

NOTE: Steps 4 - 6 should be performed within 40 seconds.

4. Close and open the driver's door twice.

5. Insert the key into the ignition.

6. Close the door.

NOTE: Steps 5 and 6 should be reversed for the following models ONLY (close door first, then insert key into ignition):

2000 - 2005 Celica

2001 - 2003 Prius

2001 - 2005 ECHO

2001 - 2005 RAV4

2003 - 2004 Avalon

7. Turn the ignition switch from "Lock" to "On" and back to "Lock" at about 1 second intervals to select the desired mode:

1 time for ADD mode.

2 times for REWRITE mode.

3 times for CONFIRMATION mode.

5 times for PROHIBITION mode.

8. Remove the key from the ignition.

9. To confirm your mode selection, the power locks will now cycle "lock" to "unlock" a number of times corresponding to your key cycles in step 7.

NOTE: If Confirmation or Prohibition modes have been selected, opening the door will complete the procedure.

10. For Add or Rewrite modes do the following within 40 seconds of Door

Procedure Lock confirmation:

A. Press both car transmitter Lock and Unlock buttons simultaneously between 1 and 1.5 seconds and release.

B. Within 3 seconds of step A, press the transmitter Lock button for more than 1 second and release.

If the keyless entry remote transmitter has been successfully programmed, the power locks will cycle "lock" to "unlock" once at this time.

If there are problems with the remote transmitter or the procedure up to this point, the locks will cycle twice. If this occurs, verify that you have received the correct transmitter, and then repeat the above procedure.

C. If multiple remotes are to be reprogrammed, repeat steps A and B.

11. Open the driver's door to conclude programming mode.

 

@Jimmyh thank you for the instructions I was unaware of the other programing sequences.

Unfortunately this did not work for me I tryed “rewrite mode” and then “add mode” but the car still gave me the four lock and unlock sequence which means I must’ve bought the wrong remote. :/

for reference this is the remote kit I purchased

$21 Key Fob Keyless Entry Remote fits Toyota Tacoma Tundra Sienna Sequoia Highlander (GQ43VT20T), Set of 2

https://www.amazon.com/Keyless-Remote-Sequoia-Highlander-GQ43VT20T/dp/B06XRK62CT

 

I bought the same exact one that you have!

It worked for me, but it was tricky to set up. What worked for me was that I had to erase all the existing remotes and then start adding the new remotes.

Once I added a remote (and it worked) I wanted to add the second remote. But once I added the second remote, the first remote that was program wouldn't work. So, that's why I needed to erase all the existing remotes first.

 

Using the chicken dance method provided by the vendor when I got my two new fobs (purchased from eBay) I managed to get them programmed. The first time, it didn’t work; the second time it did, and what I changed was I locked all of the doors in the truck and only unlocked the drivers door per the instructions. I didn’t see that mentioned in either the instructions or things I read online when looking for a solution, but in the end I think that’s what did the trick.

 

Did you compare the FCC ID Number on the back to the remote that came with the vehicle. It must match, no exceptions.

 

@Jimmyh I forgot to mention when I had purchased the truck it did not come with key fobs the keys are actually aftermarket also.

 

You will need to visit the Dealer and hope that they can give you the FCC ID Number. If it doesn't match the receiver then they cannot communicate.

I would go to the dealer with the VIN and have them ID what the proper key FOB is then you can use that to cross reference what you want from Amazon or .... where ever.

 

Thank you so much

 

I am also having issues reprograming the fob... FCC ID Number is

$13 GQ43VT20T 3-Btn

GQ43VT20T.
but after holding the key lock and unlock, then lock. it will cycle two times, locking and unlocking. not once.

I even tried 5 times for PROHIBITION mode. then mode 1.

and the 2 times for REWRITE mode.

any ideas? thank you.

 

I tried calling the dealership to find the FCC ID number they gave me the part number for the key fob which I didn’t need and said that they were unable to find the FCC number or at least they didn’t want to give it to me kind of stuck in the water now might just stay old-fashioned unlocking the doors with the key.

 

I have the same FCC ID Number "

$13 GQ43VT20T 3-Btn

GQ43VT20T" in my 2012 Prerunner 2.7 liter engine and I used the procedure I posted above and it works just fine. I have no idea what you are doing wrong or if your receiver or FOB are broken...

I have used this same procedure many times in the past with no issues. The procedure works assuming the electronics are working and the steps are carried out exactly. I'm not saying you did screw it up only that I know for a fact the procedure works if done correctly. Your sender (FOB) or receiver (ECU) may have issues.

I do wish you luck.