I signed up for that OnStar diagnostics program they offer over then internet last night. Totally thought the information was going to be off on the webpage, untill i checked it this afternoon.
The OnStar said i lost 3-4psi on all 4 tires, went out in the garage and fired up the air compressor. Turns out this OnStar diagnostics is pretty legit, my air psi guage read the same as the printout, only off by 1psi.
Just an FYI to anyone who thought about using it, it doesn't mess around.
The OnStar said i lost 3-4psi on all 4 tires, went out in the garage and fired up the air compressor. Turns out this OnStar diagnostics is pretty legit, my air psi guage read the same as the printout, only off by 1psi.
Just an FYI to anyone who thought about using it, it doesn't mess around.
