DUNLOP GRAND TREK PT20 TIRES Complaints

Traveling on interstate, 60 mph. All of a sudden, I heard a loud noise followed by a thump. Managed to get off the exit and pulled over onto the shoulder. Noticed the sidewall had separated from the tread of the tire. 5343 miles on vehicle. Original equipment tires.

I was driving on the Highway at 70 mph and the rear passenger tire blew out. Thank God I was able to stopped the car safely and no one was injured. It was a scary moment and it is still is.My safety and other was at risk It is a brand new car with only 4397 miles. I took the car to the dealership and they replaced the tire. They found NO indications of a puncture or road hazard. Tire split at the shoulder and sidewall. Tire description Dunlop Grantrek 225/60 R 18

The contact owns a 2025 Toyota RAV4 equipped with Dunlop Tires, Tire Line: Grand Trek PT20, Tire Size: 225/60/R18, DOT Number: (N/A). The contact stated that while driving approximately 5 MPH and depressing the accelerator pedal, the contact stated that there was an abnormal clicking sound coming from the rear driver’s side tire. Upon inspecting the vehicle the following morning, the contact became aware that the tire was flat. The local dealer was contacted. The contact stated that the tire was taken to a tire repair shop, and it was determined that the tire could not be repaired, and a stone was removed from inside of the tire. The tire was replaced. The manufacturer was not notified of the failure. The failure mileage was approximately 800.

TPS monitoring systems were reading or installed on the wrong tires. Asked if possibly the sensors need to be recalibrated after rotations, dealership said no the vehicle is suppose to relearn the new location. One morning my front tire said it was low, added air and rechecked it with a handheld PSI reader. Also visually checked it for nails or defects. Tire appeared fine so I got in to drive home. It was the rear tire that blew on the interstate driving home not the front left which was the one that was telling me was low. I did look at the rear while getting in the vehicle. It didn’t appear low visually but it was dark at the time and was reading just fine through the Toyota’s PSI monitoring system. Also didn’t drive any different. Typically you can tell if your tire is low or flat by how it drives. You usually can hear a thumping too. Thought maybe the cold weather was just telling me it’s low, cold weather causes tire air to contract dropping PSI but it will stabilize later. Thought maybe it was that or possibly the sensor was bad in it. All I knew was I checked it and made sure the PSI was at the factories recommended amount. Turns out all 4 tires were reading on the wrong location. Which I didn’t know at the time. Caused my vehicle to hit the side of the bridge from fish tailing. Which resulted in damage to the rear arm that needed to be replaced and significant suspension damage. Totaling 3K+ in repairs. Toyota opened an investigation but has been dragging their feet on the issue. And don’t want to take responsibility nor tell me why my tires are reading in the wrong locations. They stated that I should have checked all the tires PSI by hand because back in the day they didn’t have monitoring systems that told you the exact tire that was low. But if you are going to integrate a monitoring system, it should work properly. If it doesn’t then it shouldn’t be used with the public at all. How is the customer suppose to know that your system is unreliable.

P225 / 60 R18. Passenger rear tire blew out driving at highway speeds (75-80 mph). The car swerved back and forth across lanes almost into the median and then to the shoulder a couple of times and almost flipped before I was able to pull to the shoulder and stop. Another driver stopped to make sure I was ok and said he also thought I was going to flip more than once. I did not notice any warning lights prior to the incident. There were a couple of times prior to the failure that it felt like the car was swerving slightly - I thought possibly due to wind or different texture of the road surface, then the tire blew. The entire inside wall of the tire is separated from the tread. The dealer has not inspected the tire yet. I am ordering a set of new tires - I don't trust these and never want to go through that again.