u possibly hit the override button,under the fog light button,thats what I would guess happened.
None of the interior lights work so I think it might be a fuse?
If the instrument cluster on a 2002 Envoy is not working, check the fuses. There is a main fuse for this under the hood on top of the battery.
There are several things that can cause your GMC Envoy dim lights not to work. The most common cause is a blown fuse. A loose or corroded ground wire can also cause a problem.
Try turning on the button on the left of the ceiling console. Had the same prob myself.
If only the interior lights won't work, check the fuses.
Check your fuses - they are operated separately
If the headlights on the 2004 GMC Envoy are not working, there could be a loose connection somewhere. If all of the other lights are working, it is most likely not a fuse that has blown. Double check the wiring to see if there is a loose connection.
The lights may not work because the wires for the lights is not pluged in or you blew a fuse.
Check the fuse for the interior lights. Nick
ford van 2013 E250 inide lights wont work
interior light fuse
just had this problem with my 2002 durango, the mechanic ran it on the computer and nothing showed up so he disconnected the battery and then reconnected it and everything works now. The headlights, locks, panel lights, interior lights, locks, rear wipers all run through the body assembly moduale. Hope this helps you.