I thought this was pretty niffty
 

http://www.wishop.com/automobiles/HE...iagnostics.htm
Does #8 show you what year your car is, if so I got cheated on my car.

cool, other then see readings can that feature calibrate anything, ie needles after you put in new gauges?

Wow, that's pretty cool. On my 03 silverado, the change oil prompt would not go off on the cluster. After 3 phone calls, I had to put the key in, turn it to the on position, and floor the gas pedal 3 times to clear it. It was the damnedest thing and mentioned nowhere in the manual.