Remote keyless entry not responding

Hi,

Here are two things for reprograming a FOB. See it either helps. The second one is specific to your vehicle.

https://www.2carpros.com/articles/how-to-re-program-a-key-remote-fob

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2007 Lexus Truck RX 350 FWD V6-3.5L (2GR-FE)
Registration
Vehicle Accessories and Optional Equipment Antitheft and Alarm Systems Keyless Entry Testing and Inspection Programming and Relearning Wireless Door Lock Control System Registration
REGISTRATION
REGISTRATION

HINT:
- Register the recognition code when replacing the door control transmitter or the door control receiver.
- Add mode is used to register new recognition codes while still retaining codes already registered. This mode is used when a new transmitter is added. If the number of registered codes exceeds 4, the previously registered codes will be erased in order, starting from the first registered code.
- Rewrite mode is used to erase all the previously registered recognition codes in order to register all-new recognition codes. This mode is used when the transmitter or the door control receiver is replaced with a new one.
- Confirmation mode is used to confirm how many recognition codes have already been registered before another recognition code is registered.
- Prohibition mode is used to erase all the registered codes and disable the wireless door lock function. This mode is used when the transmitter is lost.

1. REGISTRATION OF RECOGNITION CODE (MANUAL OPERATION)

HINT: All the following registration procedures must be performed in order.

a. Ensure that the following conditions are met:
1. No key is in the ignition key cylinder.
2. Driver side door is open (Other doors are closed).
3. Driver side door is unlocked.

b. When the above conditions are met, perform the following:
1. Insert and remove the key from the ignition key cylinder twice (end remove).

HINT: Complete this step with in 5 seconds.

2. Close and open the driver side door twice (end open).
3. Insert and remove the key from the ignition key cylinder.

HINT: Complete this step with in 40 seconds.

4. Close and open the driver side door twice (end open).
5. Insert the key into the ignition key cylinder and close all doors.

HINT: Complete this step with in 40 seconds.

pic 1
6. Turn the ignition switch from the ON to the LOCK position at approximately 1 second intervals according to the number of times given as the illustration.

HINT: If the number of ON-LOCK operations of the ignition switch is 0, 4 or 6 or more, there will no response (power door lock and unlock operation) to show which mode has been selected.

7. Remove the key from the ignition key cylinder.

HINT: Complete this step with in 40 seconds.

pic 2

8. The body ECU automatically performs the power door LOCK-UNLOCK operation with in 3 seconds after the mode has been selected and informs the technician of the selected mode using the response patterns as given in the illustration.

HINT:
- When the confirmation mode or prohibition mode has been selected, the registration procedure will be completed.
- In the confirmation mode, when the LOCK-UNLOCK operation is performed twice, the number of registered recognition codes is 2.
- In the confirmation mode, when 0 codes are registered, the LOCK-UNLOCK operation is automatically performed 5 times.

c. Registration of the door control transmitter.
1. If the add mode or rewrite mode has been selected, press LOCK and UNLOCK on the transmitter simultaneously.
2. Press either of the switches on the door control transmitter again.

HINT:
- Switches must be pressed for at least 1 second each time. The second operation must be performed with in 3 seconds after the first operation.
- A recognition code must be registered in the door control transmitter with in 40 seconds after a selected mode is responded to.

pic 3

3. The body ECU automatically performs the power door LOCK-UNLOCK operation with in 3 seconds after the switch on the door control transmitter is turned off, in order to indicate whether registration has been completed correctly or not.

HINT: If the LOCK-UNLOCK operation is performed twice, registration of the recognition code has failed. Perform registration procedures from the beginning once again.

4. If registration is continued, the next recognition code must be registered in the door control transmitter with in 40 seconds.

HINT: Up to four recognition codes can be registered.

d. Completing the registration mode.
1. The registration mode will cease when any of the following occurs:
- 40 seconds or more have elapsed after a previous registration mode is input.
- Any of the doors is opened.
- The key is inserted into the ignition key cylinder.

e. Perform the following after registration is completed.
1. Perform the wireless door lock control operation check

HINT: If the wireless door lock control does not operate, perform the registration procedure again.

2. REGISTRATION OF RECOGNITION CODE (USING INTELLIGENT TESTER)
a. Turn the ignition switch to the ON position.
b. Select the add or rewrite mode according to the intelligent tester display.
c. The number of registered codes is indicated.

d. Registration of the door control transmitter.
1. If the add mode or rewrite mode has been selected, press LOCK and UNLOCK on the transmitter simultaneously.
2. Press either of the switches on the door control transmitter again.

HINT: Switches must be pressed for at least 1 second each time. The second operation must be performed with in 3 seconds after the first operation.

pic 4

3. The body ECU automatically performs the power door LOCK-UNLOCK operation after the switch on the door control transmitter is turned off, in order to indicate whether registration has been completed correctly or not.

HINT: If the LOCK-UNLOCK operation is performed twice, registration of the recognition code has failed. Perform registration procedures from the beginning once again.

4. If registration is continued, the next recognition code must be registered in the door control transmitter with in 40 seconds.

HINT: Up to four recognition codes can be registered.

e. Completing the registration mode.
1. The registration mode will cease when any of the following occurs:
- 40 seconds or more have elapsed after a previous registration mode is input.
- The intelligent tester is used to order completion.
- The intelligent tester is disconnected.

f. Perform the following after registration is completed.
1. Perform the wireless door lock control operation check.

HINT: If the wireless door lock control does not operate, perform the registration procedure again.

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I hope this helps.

Take care,
Joe

You are very welcome.

If you have a chance, could you let me know how things turn out for you? Your post will likely help others in the future.

Take care,
Joe