Four problems related to brake fluid leak have been reported for the 2009 Nissan Altima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2009 Nissan Altima based on all problems reported for the 2009 Altima.
Takata recall leak in the steering wheel fluid hose, steering wheel fluid leaks out of the rubber band in the steering hose causing the steering wheel to not be able to turn. Takata recall emergency brake is not connected or working. Takata recall suspension broken causing car to rattle and make loud noises while driving.
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.
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 Altimas. It appears the problem may be in 2009 atimas also.
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.