My 2007 Nissan Sentra was purchased new in December 2006. After having to bring in my car on several occasions for minor glitches (a rear-view mirror falling off, one of the sun-visors fell off), I finally had a big problem. In February 2008, while driving on a straight, flat road, while approaching an intersection I prepared to stop my vehicle for a light. I was about 4 car lengths behind the car ahead of me, and was only traveling about 35 mph. When I pressed the brake pedal softly, nothing happened. Then I pushed the brake pedal down all the way, and still nothing happened. I had a wide shoulder to my right, so I tried turning the wheel and it had locked up. At this point, I made contact with the car ahead of me. My car was immediately taken to a repair shop and had the steering column replaced, as well as the hood of the car and various other parts needing to be fixed. The emotional trauma from the accident was difficult and though there were no established injuries, I did experience slight neck and back pain afterward. I was found to be at fault for the accident, despite the brake and steering wheel malfunction, and subsequently had a large increase in my car insurance premium. A Nissan representative was flown out at my request to run diagnostics on the Sentra but since the steering column was replaced as well as other replaced/fixed parts, no information was found. I am 100% positive that the accident was caused due to a mechanical failure and would warn against purchasing a Nissan Sentra. It was a horrible experience and I'm stuck with the car since Nissan would offer no assistance for the trouble.

- Honolulu, HI, USA

Vehicle: Nissan Sentra 2007 problem: When starting the car, the power steering may fail, making it difficult to steer the car. Stopping and restarting the engine will temporarily fix the problem. I have not yet experienced loss of power steering while driving and hope I never do.

- Fredericksburg, VA, USA

The contact owns a 2007 Nissan Sentra. In March of 2008, the vehicle made a grinding sound when making left turns. The contact took the vehicle to the dealer, but no failures were found. Immediately after leaving the dealer, the contact noticed that the front wheels were unstable. He returned the vehicle to the dealer a week later and a diagnostic test indicated that there was an alignment failure. The mechanic stated that the failure had been previously repaired on the vehicle. Immediately after leaving the dealer the second time, he noticed that the vehicle would stop abruptly when the brake pedal was depressed. This was a persistent failure. He currently must avoid crashing into other vehicles as a result of the brake failure. He took the vehicle to the dealer again and they advised the contact to go to the original dealer to receive any repairs. The current mileage was 12,000 and failure mileage was 8,000. Updated 10/20/08. Updated 10/20/08.

- Lynbrook, NY, USA

A manufacturing defect of the rear cross member does not allow adjustment for toe alignment which resulted in excessive tire wear creating an incalculable risk of failure.

- Zanesville, OH, USA

I had to purchase new tires due tro uneven wear on the passenger side of the car. I have been hearing a thunking noise, periodically, in the location of the passenger front tire location. The dealership looked at the vehicle 4 days ago and stated that the steering rack needs to be replaced. I am still waiting for the parts to arrive and the noise is getting worse. It now can be heard every time I turn the steering wheel and even stop.

- Hope, RI, USA

When turning the wheel to the left either a stop or a slow roll the steering made a low toned noise. This only happens to the left. It is not low on power steering fliud and has done it since I've owned the vehicle. I've talk to other owners and they have the same problem. The dearlerships are saying it has to do with the ABS and something else. The brakes work fine and still makes the noise even if you are not pressing the brakes.

- Apo, AE, USA