Gmc envoy2004 xuv
Cluster gauges, speed and tach

My 2004 GMC envoy Xuv, the Tach and the speed on the cluster panel. Stopped working, I heard it was a recall. When i went to the GM dealer, they said the recall is for the Denali and Yukons only ..This doesnt make sense. If its a danger on the 2 higher valued, models why not mine. Cluster not working .is not safe to my family .i can get a ticket, for having no speedometer. And im not able to sell it because of faulty gauges