What's the different between 2010 package IV and V?

Well....I guess I don't have JBL in my car then. No sub.

BTW: Today I have the Prius for exactly a year!

 

Since the OP doesn't have her location in her profile, I just wanted to be clear. No harm in that.

 

I believe that the rain repellant is a coating on the glass from the factory that is applied to the windshield and front side windows. It is similar to Rain-x in that is causes water to bead.

 

I have been putting rain-x on all the cars I've owned since highschool. The stuff is a miracle and I love that it lasts a few months + relatively cheap product to use (I also tried rain-x wipers and washer fluid with good results. I've put it on all the glass of my Prius include the mirrors and they definitely do keep a LOT cleaner. Esp. during the winter months when there is no shortage of truck spray and salt.

I've worked in a detailing shop for Lexus and apparently, the front windows (or all windows) of a lot of the models have this water repellency coating. I didn't find those factory coatings actually any better than rain-x so it really makes me wonder of the oem coating is hype. Regarding durability, our department was not warned and there were no instructions that mentioned anything about not using a razor the windows with this coating. Our team frequently used steel wool on all the windows to just remove all the fallout / dirt in preparation for customer delivery.

 

hey this is cool, based on the pdf... I have a prius iv not a iii

jbl, nav, heated leather seats, felt pillar covers, plasma cluster, usb port...no sunroof