While driving on highway tire pressure light blinking.. i checked with tire shop they told everything is good

- Livermore, CA, USA

Purchased used Camry from Chrysler/Dodge/Jeep/Ram, 8701 abercorn St., savannah, ga. The dealership had replaced the tires, 4 each, with nexen npr/Z AH5, 215/55R17, maer 4618, dot 8E8V. My purchase date was 11feb2019 and the vehicle had 59,554 miles. At 60,325 miles (729 miles on the tires), driving back from the license plate office at approximately 45mph, I heard air exiting my left front tire and then the tire was immediately flat. I took the said tire to cdjr dealership for a tire replacement and the accused me of hitting a pothole, no pothole was hit and eventually the dealer replaced the tire with no further issues. Tis past Friday night after coming home from work (05/31/2019) getting my personal equipment from my car and with 63,052 (3456 miles), I noticed a bulge on the right hand tire at night, no pothole has been hit. The bulge is similar to the tire that blew out, the bead is separating from the wheel. I have had 2 of 4 nexen 215/55R17 that have failed and these tires should not be allowed on our highway system, very dangerous, especially if driving on the interstate at 70 mph. Please see attached photos. I have an appointment tomorrow to install Goodyear tires and be rid of the nexen brand, very bad tires, thank you.

- Bloomingdale, GA, USA

This not a complaint, but it is a safety question. My vehicle came equipped with 16 inch diameter wheels. The supplied convenience spare is a 17 inch diameter wheel. My question concerns the difference in diameter between the main wheels and the spare. Is this a safety issue?

- Coral Gables, FL, USA