My Frontier had a flat tire and when my spare tire was lowered, there were 4 spots of the tire that had been worn through the side wall. I tried another tire from a 2011 Frontier and the tire was the same exact way. The way its mounted is the problem.

- Charleston, SC, USA

My vehicle has the low tire air pressure sensor. All 4 of the tires leak because the valve stems are cracking internally. The valve stems are $100 each plus labor to install them. Soft tires are unsafe and could blow out causing accidents and injury. These should be recalled. Nissan says they won't help.

- Gloversville, NY, USA

On 01-13-2011 I was driving my 2007 Nissan Frontier pick up on pa sr 92S. Between nicholson and tunkhannock ABS and slip warning lights came on. I called my Nissan dealer immediately, explained the problem and difficulties I had handling the vehicle on the snow covered road. I was told that earliest appointment I could get was 01-20-2011. On my way back, when I drove on another snowy road I applied 4X4 system but it failed to engage. Now the ABS, slip and 4X4 did not work and I had hard times to make it safely home. I called the dealer again a was again told that I could get it fixed on 01-20-2011. I decided to report this problem and I hope that your investigation of my complain will make driving, especially winter driving of Nissan vehicles safer.

- Factoryville, PA, USA