My door remotes stopped working any ideas why?

Brought my new 2015 SR5 home two weeks ago both door remotes worked fine now either will work. Replaced batteries still no luck. I guess they need reprogrammed but found nothing in the owners manual about reprogramming except take it to the dealer.
Thanks for your help.

 

Google ,its online the reprogram.

 

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.