I forgot my security code for a Sony xav-62bt

You have to contact the Seller or Sony. details in the link

Welcome to the Sony Community!

We are sorry to hear about the issue that you are having with the XAV-60 car stereo. The code that the car stereo AV center is looking for is a 4-digit security code that is programmed into your system during the installation process. This code is generally needed when one of the following issues occurs on the car stereo:

• the AV center was reset.
• the screen locks up on the unit.

If you purchased the vehicle from an individual, contact the seller of the car to see if they can give you the code. If you had your AV center professionally installed, we recommend that you contact the installer to see if they are able to provide you with the code.

If the seller of the vehicle or the installer is not able to assist you, or if you installed the system yourself, please contact the Customer Experience Center using this link:

https://us.esupport.sony.com/support/s/support-contact?language=en_US&category=car

https://us.community.sony.com/s/question/0D54O00006cxxEBSAY/what-do-i-do-when-i-forget-my-security-unlock-code?language=en_US

..

https://www.sony.com/electronics/support/res/manuals/4263/42632321M.pdf

Page 56

This requires the original 4 digit security code.

Contact the authorized service centre for Sony.

Answered.

There are installation and operating instructions on the Sony site:
Sony eSupport XAV 62BT Support

How can How unlock my xav-622

Try entering code "5415" with your remote to unlock this radio.
Or you can reset your unit by reset button. download XAV-62BT manual from here and refer to the Page 14 for reset instructions and Page 10 for reset button location on unit. http://www.docs.sony.com/release/XAV60_EN_FR_ES.pdf

usually is 0000

Security Code: This unit has a 4-digit security code function to discourage theft. Once the security function is activated, you need to enter the security code to turn on the unit after reinstalling the unit in another car or charging the battery
http://a248.e.akamai.net/pix.crutchfield.com/Manuals/158/158XAV70BT.PDF

http://www.crutchfield.com/S-BJEnfuzcgCY/p_158XAV70BT/Sony-XAV-70BT.html?tab=detailed_info