It's not anything you can do yourself. Any Toyota dealer or well equipped locksmith shop can "flash" the chip in the key.
The 2013 Toyota Highlander-Hybrid is a hybrid-powered vehicle.
The 2007 Toyota Highlander-Hybrid is a hybrid-powered vehicle.
The 2012 Toyota Highlander-Hybrid is a hybrid-powered vehicle.
The 2006 Toyota Highlander-Hybrid is a hybrid-powered vehicle.
The 2014 Toyota Highlander-Hybrid is a hybrid-powered vehicle.
The 2009 Toyota Highlander-Hybrid is a hybrid-powered vehicle.
The 2011 Toyota Highlander-Hybrid is a hybrid-powered vehicle.
The 2008 Toyota Highlander-Hybrid is a hybrid-powered vehicle.
The 2010 Toyota Highlander-Hybrid is a hybrid-powered vehicle.
The 2010 Toyota Highlander-Hybrid has a V6 engine.
The 2006 Toyota Highlander-Hybrid has 24 valves.
The 2008 Toyota Highlander-Hybrid has 24 valves.