還是不知道到底是哪一年的。過了保修期啦? 如果年頭不長，建議聯係toyota 而不是dealer.

https://www.youtube.com/watch?v=TodjV0xizs4

Steering wheel system should be the most reliable component on the car. Should not be failed in short period running. If real big accident caused by this, Toyota will pay huge cost of it. Remember this?
https://www.washingtonpost.com/business/economy/toyota-reaches-12-billion-settlement-to-end-criminal-probe/2014/03/19/5738a3c4-af69-11e3-9627-c65021d6d572_story.html?noredirect=on&utm_term=.bdc58f32ee35

I believe Toyota won't like to see this kind of customer complain.  

And check this:
https://www.techtimes.com/articles/39149/20150312/toyota-recalls-112-500-vehicles-due-to-power-steering-and-software-issues.htm

The true story, car radio died, checked internet, people paid $800 to $1000 for fixing in dealers. Some one mentioned on the internet there is design issue and ticket number. Went to the dealer and just mentioned the ticket number, then no question asked and fix for free.