Tire Pressure Monitoring System problems of the 2015 Hyundai Sonata

215/55 r 17 my right rear tire has been losing air for at least 6 months. My tire pressure light is constantly on. I had my tire inspected and was told all 4 tires are compromised. The mechanic told me that my tires were wavy??? and that the tread inside my tires were damaged and I needed to replace all 4 tires. He also said my car would not pass inspection because of this defect in the tires. I feel my safety is at risk because of the inconsistent pressure that the tires may blow at any time.

Tires on 2015 Hyundai Sonata sport. At 9000 mi. During scheduled routine maintenance at the dealership, I was informed that the tires could not be rotated due to a blister in the side wall of one of the tires. I replaced this tire with a new one of same make and model. At approximately 21,000 mi. I was again informed (during routine maintenance) that the tires could not be rotated due to a blister in the side wall of one of the tires. In 43 years of driving, I've never experienced a tire developing a blister in the side wall. . . Until now. Two tires in 14 months. I believe that these tires are defective. Hancook ventus s1 noble2 - dot 17n9 1a h-2514, 235/45r18 - 94v this vehicle was purchased new in March, 2015 and is equipped with tire pressure monitoring system monitoring. The dealership services my vehicle every 3 to 5 thousand miles. They always inflated the tires to 32 psi. Vehicle placard recommends 34 psi. The tire itself reads 51 psi max. After the second 'blister' incident, I increased the tire pressure to 40 psi. No issues with tires since.