No idea. My wife's car does the same... I'm assuming I've only noticed it in neutral, since in D, you tend to forget about looking at the gauge cluster.
Why not check and see if it happens in D, too?
Maybe I'm completely wrong, and it's a ploy by GM to make you think your car will do stupid stuff if you put it in Neutral...
__________________
"¿ʞɐǝɹɟ ɐ ǝɹ,noʎ uǝɥʍ 'ʇı ʇ,usı 'ʎlǝuol s,ʇı"
|