One problem related to brake disc pads 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.
Brakes suddenly makes grinding sound when depressed that also sounds like a large spring is about to snap. There is a loss of braking power and the brake pedal gets mushy. This has occurred in heavy stop and go traffic numerous times. If the vehicle is turned off and restarted the problem immediately disappears. The vehicle has new rotors/disc and new pads installed by the dealer. I am in fear for my life because I no longer trust that I will be able to stop when depressing the brakes. I have contacted the dealer and they said I have to bring it in when the problem is occurring.