Just an FYI, I believe AutoZone and Advance Auto cant read "SVS" (Service Vehicle Soon) with OBDII scanners, you need a special scanner for it.
Which is why he might've said that, in confusion.
SVS lights usually indicate something like a burned out light bulb, I believe they also come up for ABS issues as well... Im not sure if our car has SVS, but my old Grand Am did.
But just go to Advance if you need a code read, they usually have great customer service in my experience, and I've been to several locations... free and fast too. I've found AutoZone isnt even worth walking in the door half the time.
Just come back here before you buy anything, if you're unsure about the code readout... dont let them talk you into buying stuff
