Why "Check" button in DIC not working ?Yukon Denali07

[almenyawe]

Hi
I have Yukon Denali 07.
My DIC was working fine,two days ago i tried to change some of the options ,but it seams that the "Check" button is not responding ,the other two buttons are working fine.
I checked all the driver door Fuses all it seams to be OK.

what could be the problem?
anyone can help !!!!

 

[llllljrlllll]

I know that you said you checked the fuses on the driver door, but, try this. Remove the DSM fuse on the driver side, wait 20 seconds, and reinstall it again. Test, see if that works. Just in case, the fuse panel is on the left side of the dash, in order to get access to it, you have to open the driver door. Check your manual to locate the DSM fuse. Good Luck.