I own a Toyota 4-runner (2005, 53635 miles) which is a company car. On 8/27/07, I attempted to add air to all 4 tires. The metal valve caps that were supplied on these tires from Toyota seized to the aluminum valve stems and could not be removed from the valve stem. The rims are also aluminum. On one tire, I attempted force the removal of the metal valve cap with a pair of pliers which resulted in the top of the valve stem breaking off which resulted in an immediate flat. I contacted aaa to change the tire. I then brought the car to ira Toyota in manchester, nh to repair the tire. I was charged $119.75 to replace the valve stem and sensor. They did not charge labor for this service. The dealership could not remove the Toyota supplied metal valve caps from the 3 remaining tires on my vehicle. The service representative said that they were aware that some vehicle had this problem. The dealership planned on obtaining 3 more stem/sensor units because they believed that they could not remove the valve caps without damaging the remaining valve stems and sensors. This would have cost me an additional $360 to have the dealership replace the units. Not good Toyota workmanship in my opinion. I was forced to leave the dealership with the 3 remaining tires on the vehicle without a way to put additional air into the tires. I was left to deal with this issue myself. I had to manually grind the caps off with the aid of a dremmel grinding tool which took me 2 hours to do myself. I replaced the metal caps with black plastic caps. I believe that all Toyota customers should be made aware of this serious issue immediately. I believe that a full recall should be made on Toyota vehicles with metal caps on the aluminum rim tires. Please note that I listed the vehicle as a "Highlander" because it was the closest to the "4-runner" which I own but was not listed in the available selection.

- Derry, NH, USA