spawn01 wrote:If you are not getting full depression on the brake pedal on 1st attempt, it may be possible that you are starting to leak a little brake fluid from the master cylinder into the brake booster. Altimas are known for this problem. Check to see if you are showing signs of leakage between the master cylinder and brake booster. It may be just a little wet or oily with dirt. As it gets worse, you may find signs of leaking on your driveway and getting a brake light warning on your dash due to low fluid levels. I would take it in. I believe nissan has a replacement recall if it is leaking. My wifes 08 failed at 46k miles. I would def get it checked out.