Unfortunately, there are no do it yourself instructions that will work to program the 2008, 2009, 2010, 2011, 2012, and 2013 Toyota Highlander remote keyless entry fob.
This remote must be programmed by a Toyota dealer or a professional automotive locksmith.
For more information about these remote keys or to place an order, please click on the link below:
https://www.carandtruckremotes.com/toyota-remotes-highlander-remotes.html