I asked the dealer to give me a copy of the alignment specs. Unfortunately they did not. A few months later the tires had gotten worse. I had my alignment checked and the rear of the vehicle was out of alignment. I had it done again. The tread is 10/32 ans has less than 7,000 miles but due to the cupping the tires sing going down the road. Neither the dealer or Nissan will assist in this issue. Worse customer service you could imagine. It took the Nissan representative 12 days and 8 phone calls to call me back and tell me They would not help. Vehicle is less than a year old.