The engine air filter element in a 2nd generation (2008, 2009, 2010, 2011, 2012 & 2013) Toyota Highlander SUV with the 2GR-FE 3.5L V6 motor should be cleaned at every oil change and replaced when dirty. To view my DIY tutorial for the procedure (including replacement filter part numbers) click on the text link or thumbnail image below.
Toyota Highlander Engine Air Filter Replacement Guide
