I ended up getting a notice on my car that I had to look up in the book and so then went down to get the tires inflated. The lady who was there just used the regular air instead of 'is it nitrogen?' that my car has in its tires? So all in all I was not impressed with the original service plus when I had the low air figure on my dash' it took me awhile to figure it out and then to find out all my tires were low! Shouldn't that have been dealt with while the car was in for its service? And where do I go to get nitrogen put in to the tires or is the air added now screwing things up? Can't do much with servicing like that!