D.i.c.

I noticed sometimes my DIC display on my 98 will reset sometimes when im driving, like if i have it set to read how much oil life i have left it will be on lets say 93% and while im driving it will instantly go to 0% and blink then go back to 93% the other readouts will do that too, any idea what that could be, it started doin that when i got the oil changed.