grease fittings on 2005 Chevrolet Equinox

I have been told my grease fittings are factory sealed and I have a squeaking noise when I go over bumps and make turns, could this be the problem?

Asked by for the 2005 Chevrolet Equinox
There is a service Bulletin regarding noises/ squeaking over bumps for your vehicle dated November11, 2005. Reference number 04-03-08-008B. Correction taken to repair noises is to Replace Strut Assembly to affected side and Stabilizer Shaft Link Replacement. Contact your Local Dealer for further Information regarding service Bulletin.
2 answers
Ito had that problem,it was the sway bar bushing in back of sway bar,but the problem is they replacement one,s are the same,solid steel ,can not be greased.