Problems with 2016 Toyota Prius TIRES

2015 toyota prius. consumer writes in regards to issue with vehicle tires. *ld the consumer stated the tires had a brown substance on them. the consumer was informed the tires were not new like the document from the dealer stated they were. the tires needed to be replaced. the dealer was notified, but did not offer any assistance. *js

We purchased a new 2016 prius from longo toyota in march 2016. everything has been fine until march 2018 when we have had two incidents where the next morning a tire was completely flat when it was perfectly fine the night before. the oe tires are toyo nanoenergy a29 p195/65r15. now it has happened a third time, april 15, 2018. it is parked in my garage overnight so its impossible to be tampered with. all three instances have been exactly the same. the cause has been a small hole in the outside sidewall. i have to believe that these tires are defective since it has now happened to 3 out of the 4 original tires. there is no evidence of a nail, screw, debris, etc., that would cause this small hole/tear. we have 30k miles on the tires and the tread is still pretty decent.

Tl* the contact owns a 2016 toyota prius equipped with yokohama bluearth s34 tires, size: p215/45r/17 (na). while driving approximately 70 mph, the vehicle suddenly became unstable and a thumping noise was present coming from the rear end. after stopping the vehicle and inspecting it, the contact discovered that the rear driver side tire was flat. after removing the tire, it was discovered that the sidewall blew out inside the tire. the cause of the failure was not determined. the tire and vehicle manufacturer were both notified along with the local tire dealer (les swaub and goodyear). the vin and dot number were unknown. the tire and vehicle failure mileage was 15,900.

At highway speed tire tread separated completely from sidewall on both sides of right rear tire. vehicle: 2016 toyota prius two eco. tires - manufacturer: toyo - model: nanoenergy a29 - dot code: n39n size:195/6515 tire - date of manufacture: 1216 (december 2016)

While driving on hwy 14 at approximately 1100 am, my son's vehicle left rear tire blew off. he summoned assistance to aaa who came and put the spare tire in, he subsequently drove the car to sierra toyota in lancaster ca and chanin yescas service dept mgr assisted with having the car check. i am concerned with this vehicle it is the 2nd incident with have had with the vehicle within a week. please assist asap.

If the tire pressure is decreased by the slightest amount the light will go on and stay on. if the temperature is cool the light will go on and stay on. i've brought it back to service 4 times during november and december of 2016. their scan shows no fault. i purchased the prius in february 2016 and didn't have this problem until november. the light may come on while driving or sometimes when the car is first started. *tr