Parked can in front of store and attmpted to start it but it would not start. Yellow "key missing" light comes on but it won't start. Key battery is new, car battery is new, won't jump start. Car is dead. Turns out to be the steering lock mechanism. Only 57, 000 miles and this is only one of many issues we have had with this car. New battery (2) new brake switch new alternator new A/C pump new front rotor.

- Anaheim Hills, CA, USA

The low brake fluid light came on and I found out the brake master cylinder leaks brake fluid into the brake booster. There are no leaks at the calipers, hoses, or any other areas. This is a known issue with the 2007 and 2008 and there is an open investigation for those years NHTSA action number: PE11020, but it does not the include 2009.

- Roseville, CA, USA

Brake light started coming on and off on dashboard. Brake operation was not affected at the time. Brake fluid level was low, no visible leaks and brake pads were not worn out. Dealer diagnosed a master cylinder leaking internally into brake booster. This premature failure seems similar to the current investigation for the 07-08 Altima.

- Palm Harbor, FL, USA

I wish to file a complaint about a brake fluid leak from the master cylinder into the vacuum booster. On this date, the brake warning light turned on. I inspected the master cylinder and noticed that fluid was at the minimum level. I purchased brake fluid and filled the reservoir. When I took the car in for a routine oil change today (January 5, 2012, I told the dealer what I had done. They inspected the car and found the master cylinder was leaking brake fluid into the vacuum booster due to a faulty O-ring. The work was covered by my warranty. However, because it is unusual for a master cylinder to fail with so few miles on the car, I checked on the internet and found that a number of other Altima owners have experienced this problem, and I am concerned that there may be a safety issue brewing. I understand that the NHTSA in May 2011 was planning to investigate similar problems in 2007-08 Altima. It appears the problem may be in 2009 atimas also.

- Arnold, CA, USA

I was told that my master cylinder was leaking brake fluid at a slow rate. My current mileage is near 45,000 miles. I figured it would covered by Nissan due to it being a safety factor. Instead this dealership wanted to charge me $450 for this part, I opted not to do so. Its kind of disgusting that a car with only 45,000 miles has all these problems. This has not been on the only issue with this car. The drive belt went bad as well as my battery. Something has to be done about this problem. I have read that Nissan has a recall for these master cylinders on the Nissan Sentra. Shouldn't all there cars have this recall when it comes to safety? ## VIN passed ## Nissan Altima 2009 sedan 2.5S ##.

- Boynton Beach, FL, USA

My brake light kept coming on only a few months after I bought the car. I took it in and they said they replaced the brake master cylinder because it was leaking. About a year later I started hearing screeching when I braked, mostly at night or in cool weather. I had the brake pads looked at and they were fine. Now the brake light is coming on again, but I don't want to pay for another replacement master cylinder since my warranty is expired. Nissan knows about these defective brake cylinders and should be held responsible and made to recall cars up to 2009 or 2010!

- San Gabriel, CA, USA

The contact owns a 2009 Nissan Altima. The contact stated while driving approximately 5 mph, she applied the brake and the pedal depressed to the floor. The vehicle surged forward and caused her to crash into a tree and a metal pole. The contact was not injured. The vehicle was towed to an independent repair shop. The failure was not diagnosed. The manufacturer was made aware of the failure and informed the contact that they would send an inspector to examine the vehicle. The failure mileage was 16,000. Updated 11/29/11 updated 12/07/11

- Holbrook, NY, USA

The contact owns a 2009 Nissan Altima. The contact stated that the master cylinder was leaking fluid abnormally. The safety warning light started to illuminate and the vehicle was taken to the dealer. After inspecting the failure, they replaced the master cylinder under warranty. The manufacturer was not contacted. The failure mileage was 11,165. Updated 07/08/11 the consumer stated each time he went to the dealer, brake fluid had to be added. The mastery cylinder was leaking. Updated 07/20/11

- Oceanside, CA, USA

On July 27,2010 my vehicle was approaching a corner and trying to come to a stop. A truck was approaching perpendicular heading North. I motioned for the truck to take the right of way before making my turn. My foot was on the brake pedal, but the vehicle would not stop, resulting in the truck hitting my vehicle in the left front side, causing considerable damage. In addition the airbags did not deploy. The vehicle is now in the body shop. Nissan na has been contacted, and planning to investigate the problem concerning the brakes and airbags. Insurance is estimating body damage.

- Hallandale , FL, USA

The contact owns a 2009 Nissan Altima. While entering the vehicle, the contact noticed that the rubber padding had fractured from the brake pedal without warning. The vehicle was not repaired. The current and failure mileages were 9,000. Updated 08/11/10. Updated 08/17/10 the consumer stated the rubber brake pad fell off again as he was pulling out of the driveway. Updated 12/03/10

- San Diego, CA, USA

Brakes failed at 7500 miles while driving approximately 47mph on a busy highway. Nissan dealership found all 4 rotors warped and all 4 brakes defective. All were replaced under warranty. 2 days after dealership repairs, a very loud "clunking" noise was noticed while driving on another freeway and brakes failed once again at 50 mph. Another Nissan dealership stated there was a "brake rotor run-out excessive measure" and resurfaced rotors.

- Laguna Niguel, CA, USA

At regular driving, brakes failed at 7500 miles (while driving approximately 47 mph on the 5 freeway southbound). Tustin Nissan dealership found all 4 rotors warped and brakes defective. Replaced all rotors and all brakes. Also defective: Driver's side rear view mirror (replaced at 8000 miles), paint trim peeling (upon new vehicle delivery).

- Laguna Niguel, CA, USA