Warning Light On problems of the 2013 Toyota Prius

Hybrid warning light comes on out of nowhere. Code 3107: lost communication between srs ecu and power management ecu. All wires are otherwise good and no corrosion is apparent. This miscommunication means that the airbags are not working properly. Battery is healthy according to Toyota dealership. Hybrid warning light comes on intermitently to show when miscommunication is happening.

Often referred clock spring as it is referred to part number 84307-47020 it affects a multitude of things on my car that are safety related including the horn, the buttons on the steering wheel that control the radio and tricks odometer, the airbag, maybe be airbags plearle, be adaptive cruise control and maybe other things. My knowledge my car has never been wrecked or had airbags blown and this is very premature for this part to fail. Believe Toyota should take responsibility for it. The warning light came on and it says in the manual that is unsafe to drive. Do not have a clue why it failed. The Toyota dealer repair is close to $900 which is ridiculous.

Front passenger's airbag sensor doesn't sense medium weight passenger. I've talked to the Toyota dealer and they told me that if someone over 70lbs in passenger seat, the light will come on "airbag on" and stay on. If there is something in the seat that is lightweight, the light will say "airbag off. " if there is nothing in the seat, the light will remain off. My wife is about 110 lbs but the warning light "airbag off" is on most of the time. Sometimes I notice it and ask my wife to get out and then get back in to activate it. Seems like it works that way. Many times I did not pay attention to it until we came to our destinations. I did ask my wife to lift her body up for a few seconds and sit down but the warning light "airbag off" just stay on. Dealer says there is nothing they can do because the sensor is non-adjustable and there is no recall for it.