Very easy. Its a twist and a snap. Its a little more tricky finding the correct replacement blade though. See both related links.
It depends on if it has air conditioning or not
Not exactly sure what you mean by covers. Some people will go to Toyota and pay a little extra for rubber refill inserts that slide into the Toyota wiper blade frame. Most people just replace the entire wiper blade assembly with aftermarket wiper blades. The 2008 Toyota Highlander has "hook-end" front wiper arms and a "roc lock 2" rear wiper arm. See the Sources and Related Links section below for installation videos and correct attachment/length wiper blade sizes. Also, if you purchase the replacement blades first and there will be additional instructions/illustrations on the replacement packages. Very simple.
Replacing the rear wiper is very simple once you get the correct rear wiper blades (difficult to find in stores). See sources and related links below and you'll be good to go!!
The 2008 Toyota Highlander has the most common hook-end wiper arms. See sources and related links below for installation videos. Also, purchase the replacement blades first and there will be additional instructions/illustrations on the replacement packages. Locate and press the tab or button where the wiper blade is inserted into the hook of the wiper arm and pull wiper blade out of hook. You may have to rotate and flex the blade to make enough clearance for the hook to pass through.
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The Toyota Highlander rear wiper blade is held in place by two retaining clips. Remove the retaining clips and the wiper blade will slide out.
The 2006 Toyota Highlander has "hook-end" front wiper arms and a "roc lock 2" rear wiper arm. See the Sources and Related Links section below for wiper blade installation videos and correct attachment/length wiper blade sizes. Also, if you purchase the replacement blades first and there will be additional instructions/illustrations on the replacement packages. Very simple.
The Toyota Highlander has the most common hook-end wiper arms. See sources and related links below for installation videos. Also, purchase the replacement blades first and there will be additional instructions/illustrations on the replacement packages. Locate and press the tab or button where the wiper blade is inserted into the hook of the wiper arm and pull wiper blade out of hook. You may have to rotate and flex the blade to make enough clearance for the hook to pass through.
The bottom plastic piece pops open so the wiper can be stood straight up. The wiper then pops out like other wiper blades and can be replaced.
http://www.ehow.com/how_4454148_replace-wiper-blades-toyota-corolla.html