03 escalade speedo stuck??????

Hi guys & thanks any way 03 escalade speedo does'nt return to 0 it stays on 80 mph!! im told cars not mine, speedo(needle) moves like it should it just starts out at 80 & when u get to the end it stays there untill u slow down. i'm thinking its in the dash unit?? but figured i ask before to see if this maybe something common.Thanks again

Yep it needs a new cluster. There is a GM bulletin for this issue.