Originally Posted by Richter12x2

I'll chip in my two cents. 6 psi low may be easy to spot in large sidewall tires, but the low profile tires I have on the XFS and that I had on my previous 540, basically ALWAYs looked flat to the eye (especially if the front tires are at an angle).

I'd like to know the actual pressures, too, because we just had a cold snap, which caused two of the tires to read low. That's expected, and I can take care of it. Well, a few days later, colder again, and another warning for one of the same tires. So I figured ok, it's running a little low, I'll take care of it when we get home. Then come outside ready to leave and think "Okay, that really DOES look low". So I filled it up on the spot and was reading like 16 psi. If I hadn't just happened to walk by on the passenger side, I would have just assumed it was fine.

So while the current system is better than nothing, because I might not have noticed my passenger rear tire was low, I still think actual numbers would be an improvement.