Tire sensor does not match the correct tires. Also, the sensor says that one of the tires is at zero even though there is air in all my tires. Because of this, the tire pressure light remains on.

- Washington , DC, USA

The contact owns a 2008 Pontiac G6. The vehicle was equipped with hankook optimo H725A tires, size 225/50/17 with dot number, 5mlppdyh4707. The contact noticed the sidewall on all four tires exhibited several cracks which resulted in consistent loss of air pressure. The tires were not replaced. The contact attempted to notify the manufacturer and was unsuccessful. The approximate failure mileage was 12,400.

- Ancramdale, NY, USA

Goodyear assurance fuel max 225 50/R17 tires that are defective are being sold to consumers. Goodyear was contacted but they will not listen and address the issue. Purchased 4 brand new tires 7/1/11 and garage installed the new front tires. Could not install back tires due to garage found that one of the tires had a bubble in the tire on the side wall with a small whole in it. Defective tire was returned. Replacement tire received 7/5/11 and two back tires were installed on the car. Car driven 15 miles home from garage and not driven since then. Rear passenger flat tire discovered on morning of 7/7/11, could have been flat before then but car has not been driven since brought home from garage when back tires installed. Goodyear was once again contacted to advise that the tires are defective, they will not investigate issue. Flat tire was filled with air and this tire has the exact same problem as the other tire. Bubble in sidewall of tire with small whole in it. Garage advised they think that Goodyear is using a defective mold to make tires. Pictures taken and video taken of second defective tire.

- Mercersburg, PA, USA

I was driving my 2008 Pontiac G6, at approximately 40 mph, northbound on ward drive, in the goleta, California, area. With no warning of any kind (I.e. loud pop, pull, or car movement), the tire pressure sensor indicated to check tire pressure. The tire pressure monitor indicated 15 psi in the left front tire. I pulled off the roadway, while monitoring the pressure monitor, and the tire was quickly leaking air until the tire was fully deflated. I did not run into, or over, any debris, curb or other obstacle. The left front tire split on the inside face of the tire (facing the car), right where the sidewall meets the tread and starts to curve around. The split started about 2/3 of the way from the rim, and continued radiating outward toward tread (as opposed to along the sidewall, parallel to tread) about an inch to an inch and a half long. It is a jagged split. There was not any puncture, penetration, or cut in evidence. I am being told that I need to buy a new tire, and if the manufacturer determines the tire failed, then the tire manufacturer will determine any amount of refund, if any. Based on the location of the split in the tire sidewall, and the lack of any external influencing event(s) prior to the failure, I believe this tire failed without explanation. As all four tires are of the same production lot (based on the dot #), I believe all four tires should be examined and fully tested to determine if the remaining three tires are prone to failure as well. As this event occurred at relatively slow speeds, I feel quite lucky that nothing serious happened. If this had occurred two minutes later, I would have been on the freeway, at freeway speed, and could have experienced a serious accident and injuries. These tires (hankook, optimo H725A tires) need to be checked on!

- Santa Barbara, CA, USA