Extreme dry rot to a 3.5 year old tire. Tire leaks air. Yokohama also refuses to do anything.

- Hermitage, TN, USA

I have had 3 tire pressure monitor stems crack and disappear into the tire causing a flat at 3 separate occasions. The first time was at 38,000 miles, the last 2 were at 76,000 and within a week of each other. I called Kia but they stated I have to have Kia examine them. The first time Kia told me that this just happens and charged me $200. I went to mavis tire the 2nd time and they replaced it for $83. I called Kia today after the 3rd time and they told me to go to the dealer.

- Highland Mills, NY, USA

Tire pressure monitoring stem broke off when tire was being repaired. Mechanic says other valve stems on the car are also fraying and could break. Car has less than 60,000K miles. Stem fragility poses an immediate and very dangerous threat to safety.

- Durham, NC, USA

On July 31, 2014 I was driving 65mph when rear passenger TPMS sensor gave way causing tire to lose pressure quickly. The back end of the vehicle kicked sideways and then became hard to steer. Rear tire was shredded and tire sensor in pieces. Replaced all four tires twice since buying the vehicle in 2011 due to TPMS indicator light on. First time, on Nov. 7, 2011 replaced all four tires. TPMS light continually came on and had to be reset by tire shop. Tires cupped so bad we had to replace all four again. Second time, on Oct. 7, 2013 replaced all four tires and two sensors from previous flat tires. In 2012 and again in 2013, a TPMS gave way causing the tire to lose air quickly. Both times I was told by the tire shop it was an original sensor that caused the tire to go flat. Once again the TPMS light came on and was continually checked and reset by tire shop. This is the third time an original sensor has caused a flat tire on this vehicle and the third sensor to be replaced. Once again, the TPMS light is on and the tires are cupping.

- Gloversville, NY, USA

The contact owns a 2010 Kia Forte. The contact stated while driving 74 mph, the front driver's tire spontaneously blew. The contact alerted both the manufacture and dealer about the failure. The manufacturer stated that the tread separated and caused the tire to fail. The tire was replaced however shortly after the first tire failure the front passenger's side tire spontaneously blew. The contact again alerted the manufacturer and dealer about the failure however, declined to help the contact with the repair costs. The tires were replaced. The approximate failure mileage of the tire and vehicle was 34,900.

- Bradengton , FL, USA

On January 19th, 2014, while the car was being driven on the expressway, the driver's side rear tire suddenly went flat. Upon inspection, the hole where the valve stem should reside was empty. This is the second occurrence of this type. Previously, on February 28th, 2013, while driving on a secondary road at 55 mph, the passenger side front tire failed in the same manner. At that time, a complaint was submitted with Kia (confirmation id K2441671). No response or contact was ever given by Kia. Once the tires were disassembled, and the TPMS parts examined, heavy corrosion and metal erosion was present. At some point, the securing nut lets go, and the stem ejects into the tire, rapidly releasing the air. If this is an issue of inferior metal being used with the Kia valve stems, then I feel that a safety recall should be issued. Thus far the failures have only caused the loss of time, inconvenience, driving on the dreaded space-saver tire, cost of replacement sensors and tires, and risk of changing tires at roadside, but sudden loss of control of vehicles could easily lead to serious injury or loss of life to the driver and others sharing the roadway. I am not aware how common this type of failure may be, but it is a potentially serious danger that could be eliminated or at least significantly minimized. Over several hundreds of thousands of miles driven, I have never experienced a normal valve stem ejection, nor know of anyone who has. The TPMS valve stems in question seem to be of some grade of aluminum or aluminum alloy. The Kia sensor body part number is 52933-2M000. Thank you.

- Shorewood, IL, USA

Vehicle was slowly losing pressure in all four tires for about one week prior to incident. Failure of driver's front tire occurred while driving to service station approximately eight miles after inspection of pressure. Service inspection after the incident found that all four sensors were leaking. Tires had less then three thousand miles of wear at the time of the incident.

- Bowling Green, IN, USA

I was driving home, the low air pressure indicator turned on, and I stopped at a gas station to put air in the tires. I noticed that one of the tps on the rear wheel was cracked. Once I tried to remove the plastic valve stem cover, the valve stem broke releasing all air in the tire. I put the spare on, then contacted dealer. Dealer states that I need to purchase new tps, as the "sensor will not break on its own." Car has 35K on it, still has factory warranty, however, this item is not covered.

- Herkimer, NY, USA

The TPMS on three tires have corroded and caused loss of tire pressure. This has lead to having to replace all three sensors. When this sensor corrodes, you cannot add any air to the tire for a temp fix until it is repaired and you are forced to drive on the spare tire. This repair runs around $200 at the local Kia dealer.

- Erie, PA, USA

After incident at 70 mph and taking the car to the Kia ann arbor Michigan, the service manager refuses to write in the service report the observed cracked nut supporting the front passenger wheel stem. The complaint was issue under Kia #[xxx] information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Brighton, MI, USA

Kia case #[xxx] after inform Kia on wheel stem failure due to corrosion(Kia case number[xxx]) Kia decided not to issue nor elevate the problem on wheel stem supporting nut failure. Kia did not accept my offer to ship the failed stem and nut for test or inspection. Kia denied to warrant the involved parts after offer the car for 100,000 miles or ten years "bumper to bumper" information redacted pursuant to the Freedom Of Information Act (FOIA), 5 U.S.C. 552(B)(6).

- Brighton, MI, USA

The tire deflate rapidly when driving at 70mph on freeway. When in the tire shop technician reveled there was no puncture but the stem was missing. After removing the tire the stem was found inside the tire with visible corrosion signs. By inspecting the rest of the stem, was found that all three stem supporting nuts have traces of corrosion but one of them on the passenger front wheel the nut was cracked. We concluded as cause of the problem was the crack in the nut that secure the stem in position. The failure can be verified by the corrosion mars present of the failed wheel stem. The component is identify as fcci id: Kr5S180052015B ic:267T-S118015B id:0C2bde37 S180052017E 09096 Continental PA66 GF30 52933-2M000.

- Brighton, MI, USA

The TPMS sensor retaining nuts crack and cause the tire to suddenly loose all air pressure. This has happen on two different occasions while traveling on the highway. This destroyed the tire. Today while getting brakes serviced it was found I have a third retaining nut that is cracked.

- Marion, NY, USA

I was on the interstate passing an 18 wheeler. My rear passenger side tire blew. The tire caused me to make a sharp right hand turn which threw me under the 18 wheeler. The truck went over the passenger side. I was then thrown into oncoming traffic then into the median. The vehicle is totaled - the air bags did not deploy.

- Baton Rouge, LA, USA

My wife and I own a 2010 Kia Forte which came with Goodyear LS2 tires, size 215-45 17. In the three years and 25,000 miles we have used the car, four of the Goodyear tires have developed bubbles in the sidewall. This has resulted in having to replace the four tires. At the time the third one needed replacement, I replaced it with a different tire by another manufacturer. This tire has performed flawlessly on the car with no bubbles whatsoever. Recently, I noticed a new bubble on one of the goodyears still on the car. This tire happens to be one the same side as the replacement tire from another manufacturer. I believe that the Goodyear LS2 tires may have a serious defect in the sidewall construction. Resulting in sidewall failure (bubbles) with normal use. I am in the process of replacing the three remaining Goodyear tires on the Kia with a different brand of tire.

- Rumford, RI, USA

Driving on highway at 60 mph and passenger front tire sidewall completely separated from tire. Original tires when vehicle purchased. Only 11,000 miles on tire; Goodyear Eagle ls 2.

- Lakewood, CO, USA

Front tires on 2010 Kia Forte koup was worn so severely on the inside edge the cords was showing. Took it back to dealership to have alignment checked. Dealer advised alignment was within specs. You can not see the tire wearing unless you get under the car and look at the inside edge. The rest of the tires still look in good condition.

- Woodland, AL, USA

Owned car for 1 day on day 2 driving down road and tire blows out. Garage refused to warranty tire w/O completely inspecting tire.

- Woodridge, NY, USA