Tried moving that bushing with a prybar and it wouldn't budge. Its probably okay for the time being, but next time I have it on a lift ill take a closer look.

 

I am not sure what to make of the sub-frame bushing as it is not very visible from the picture, but I can assure you that both the bushings from the lower control arms are just fine.
—from someone who just had it replaced on warranty on his 2017 QX60 AWD.

 

Thanks for the reply, I was also told by a mechanic friend that slight cracking like that is normal and superficial not to worry too much.

 

no single issue with these bushing 130k miles mmm but a lot of other suspensions parts replaced like struts , sway bars etc

 

My lower control arm bushings look exactly like yours. I drive a 2013 with 155k, and will wait a bit longer before replacing. The dealer wants $1,7k to replace both lower arms.

I watched a youtube video last night, and normally I don't mind trying to tackle those things myself, but it looks pretty involved.