I just bought the replacement "buzzer" Part Number: 897470R020. Does anyone know the easiest way to replace it? I can get my hand on the installed one and I can see it with a mirror. I'm hoping that someone has experience with getting at it without having to go in through the wheel well. Thanks

 

Awh, come on. somebody has to know how to deal with this. i know that it is located up inside the left front fender/wheel well area.

 

Ok so.... figured it out on my own. Here's what I did: Jacked up the left front and removed the wheel. Found that the wheel well liner had to come down. Removed three rivets (drilled them out), four hex head screws, three pop-up fasteners, and three torx screws. Pulled down the liner just enough to get access to the buzzer which was mounted external to the engine compartment. Found the buzzer just above. Removed the old buzzer and installed the replacement. Reinstalled the liner using new pop-up fasteners where the three old ones were and also where three rivets were. New buzzer works just just fine. The old one appears to have corrosion on the plate and probably elsewhere inside. Back to being plenty loud. Hopes this helps out someone down the road. Toyota certainly did not make it very accessible including using four different types of fasteners to secure the wheel well liner.

 

Well done.