The tires on our vehicle are failing. They are prospector brand tires, size 225 70 16; dot bf 5cf9cc 4404 (3 tires) and dot bf 5cf9cc 3604 (1 tire). In the 3 years we have owned these tires we have always had difficulty keeping them balanced. The tires have less than 20,000 miles on them, and have significant tread life remaining. Over the years we have had to rebalance them frequently (about 7 times, most recently less than 1000 miles ago). At the last balancing, the mechanic said that there were buldges appearing in the tires, indicating to him that the tires were experiencing multiple ply separations. Now, once again, the tires are shimmying almost uncontrollably at expressway speed; less so at speeds below 40 mph, but still shaking. Using the internet, I found that prospector tires had been recalled by their manufacturer, bf goodrich, once before. I called bf goodrich (at 1-877-788-8899) and was told they had absolutely no information on the prospector tires, other than that they were manufactured in the same plant that makes bf goodrich tires. The customer service representative checked several times with her supervisor, returning each time saying that bf goodrich had no responsibility at all relating to these tires or this issue. I believe these tires are unsafe to use and will be replacing them within a week.

- Portland, OR, USA

Driver noticed that while driving the tire track control engaged. This causes the vehicle to slow down on its own without applying the brakes. Driver took vehicleto the dealer, but mechanic could not duplicate the problem.

- Westerville, OH, USA