Tire Pressure Button?

[superpowerdave]

I've searched, I promise, and found nothing.

On my wife's 2000 RR, the dash pod above the stereo has a number of buttons to activate various pieces of equipment. Starting from the drivers side there are:

1) Front fog lights
2) Rear fog lights
3) Suspension rocker up/down
4) Suspension setting indicator thing
5) ?
6) Hazards
7) Cruise Control

Obviously #5 is the one in question. It looks like a tire, and my thinking is that it is used for setting tire pressure so that when one tire drops its pressure the light will tell me ... my issue is that I can't find a damn reference for this anywhere! The owners manual displays the button, but ignores it in the text. A search on the internet hasn't helped me ... and maybe it's because I'm a luddite ... I'm not sure.

If anybody has any good intel on this I'd appreciate it.

[Choqiees]

It's for locking the airbags. basically, when you set the vehicle high, press the button and the airbags won't go down even when you go over 25mph (I guess that's the default speed setting)

[Zbb6]

yup it sets it into place only when you are at the normal setting or the freeway setting. the off road mode (highest) and the Get in and out mode (lowest) only stay up to 25 mph.