[SSFury]

It's to save on fuel. If you are at low RPM's in first gear, and attempt to upshift to second, the car figures your not in a hurry, and in an effort to use less gas, it locks out second, so as your pulling down on the shifter, it slips instead into fourth. Which, at low RPM's, the car barely has the power to turn the gears. It shutters a little, and generally gives you no power whatsoever. On the rare occasions this has ever happened to me, it is automatically followed up with a downshift to third. Not exactly what it was designed for, I'm sure.

Like HDRDTD Said, if you drive it right (knowing what NOT to do..) You really dont ever get this to kick in.