Assembly & Testing1 Fob Key with Electronics board and Batteries are included and pre-installed; Each item has been tested before shipping.Instructions for useIt's a 100% Brand New 4 buttons Keyless Fob Remote Control Car Key and blank key, which needs to be programmed and cut before use; if not don't know how to do, contact us please. This Transmitter Works on Push Start Button Vehicles;Replacement For Remote fob P/N: 89904-0E031; FCC ID: HYQ14ACX; Board:271451-5290 GNE; Frequency: 314MHz; Key Fob Replacement Suitable for 2009 2010 2011 2012 2013 2014 2015 RX350 / 2010-2015 RX450 / 2010-2015 RX450H / 2011-2014 CT200H / 2010-2014 GX460 /2008-2011 LX570 .Purchase InstructionsMake sure that your OEM information (include FCC ID, Frequency, part number) and button appearance is the same as ours and If you don't know, please consult your dealership or us.Programming MethordThis vehicle is not on board programmable and requires a qualified professional to program smart key remote fobs, this remote key fob must be programmed and cut by a qualified locksmith or dealership.