This is aFactory OEM (Original Equipment Manufacturer) 4 button keyless entry remote, aka"key fob" for a 2013 Lexus LX 570.
These are genuine Lexus OEM electronics with a new uncut key.
Please open your existing key fob and verify that the number on the circuit board is 271451-3370. See images for reference.
Need circuit board number 271451-0140 instead? Click here
THIS REMOTE MUST BE PROGRAMMED BY A LOCKSMITH OR DEALER