Just installed the rear window deflectors with the factory supplied clips. These clips are notoriously difficult to put in. bruceha_2000 (Side Window Deflectors | PriusChat) and chrisspaulding (weathertech window vents | PriusChat) have posted photos and a diagram in separate threads to show the way the clips supposed to work. I would like to add two more detail points that helped me and wished to know earlier. Hopefully my crude hand drawn diagrams will help others who wants to install with the clips. The Goal: Use the spring force of the metal clip and the rubber weather strip to secure the clip in the channel formed by the metal frame 1st problem: The deflector, the clip, and the metal frame are too stiff to allow insertion → the clip ends up popping out of the channel solution step 1: Instead of inserting the clip fully into the channel, only insert partially and then mate with the deflector before full insertion 2nd problem: Rough edge of deflector easily gets stuck on the rubber weather strip and prevents further insertion solution step 2: Lubricate the rough edge of the deflector. Now it is possible to insert the deflector together with the clip fully into the channel Some more tips: I tried sliding in the deflector with two clips simultaneously without success. I ended up doing the front clip first, then the rear clip. For the double sided adhesive tapes at the ends of the deflector, I only peeled partially before insertion and peeled the rest after complete insertion. I also cleaned the rubber surface in the channel before installation. Update: I took these pictures after installation but never posted them until now: As you can see they are very low profile (doesn't stick out from the side of the car too much) and I really like this feature of low profile.