Do you have an AWD QX60? I ask because this InfinitiPartsDeal site shows 96401-9PB0C are for "Premium" QX60'sThink you want 96401-9PB0A - $90
The other one 96401-9PB0C - $150 shows a "Required Packages - Israel"
I had both my sun visors replaced by dealer under warranty - 964019PB0A and 964009PB0A
I'm having the same issue with my driver side visor. Annoying.@Thriftydawg - My driver and passenger visors would not go all the down - that is, toward the windshield and they both made this loud popping sound when we pushed them up. They also squeaked loudly on the way down. Additionally, the visors would not stay in the up position against the headliner - they inevitably dropped down a few inches by themselves - quite annoying.
I just complained about them to my Infiniti service advisor and he promptly replaced them both. Explained there was a known issue with them - cam devices going bad.