One problem related to brake popping noise has been reported for the 2006 Infiniti QX56. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Infiniti QX56 based on all problems reported for the 2006 QX56.
Oh my . . . What a bad problem. After idling for about 10 minutes when it was about 90degf outside the "brake" light came on . . . Then when trying to move the brakes would not work. They had a very bad vibration in the pedal and made grinding and spring popping noises. Even though going slow (<30 mph) the car would barely stop. I cannot imagine this happening at highway speeds. Very dangerous. Turning the car off and then back on resolved the problem, but I am very concerned that this is going to happen again at a very bad time. The brake pads and rotors were checked and they are fine. There needs to be a definitive fix and recall for this dangerous issue.