Well the current and old system might alert you at the same loss of psi, but you can at least pull up the display and see what each tire is at any given moment. I'm sure VW put a range where it wouldn't throw a flag if it goes above or below due to when the tire warms up or cools down, but a lot of tire wear can occur with even a couple of lbs difference in a tire. I drive 100 miles a day and it's just becoming a pain in the ass checking my tire pressure all the time. GF has a 2011 sonata and it's only ever had one sensor replaced in 8 years.