GM stopped putting grease fittings on cars about 15 years ago. Most of them are built with silicon or other high end grease that just doesn't need any help over the expected lifetime of the vehicle. (according to the shop guys I've asked this too.)
I know that at places like J.C. Whitney and other catalogs you can buy the fittings to put them in yourself. If the locations are there, which I would think they are. But, I wouldn't do this until you talk to your dealership's shop to find out the best grease to use and any other "good to know" items.
A forum community dedicated to GMC Terrain, Chevy Equinox, and Cadillac SRX owners and enthusiasts. Come join the discussion about modifications, classifieds, troubleshooting, maintenance, reviews, and more!