Well, that's an unfortunate stereotype. Even more unfortunate is that it's often true.
The codes are determined by the manufacturer and, depending on equipment, will mean the same thing from one model to the next. (eg; DTC 9-3 is a seat belt buckle switch fault, which is the same on Civics, Accords, CR-Vs, etc.)
If you wanted to, you could call the dealer and ask them to look in their files for the DTC for you. I know that we have to document pretty much everything that we find on every vehicle we work on. This way if the vehicle returns for the same problem, it comes back to the technician who did the work the first time. It shouldn't be a big deal.
If you were to perform the clearing procedure that I've provided you with, and the DTC returns, the SRS light will come back on. If it comes back on right away, you have a current fault and if it takes a little while, you have an intermittent fault.
If you'd like me to see if your vehicle is covered by the warranty extension, I could check that for you if you were to provide me with your VIN#.