Have gone over all fuses and they look ok. Any ideas on what else to check?

 

bulbs themselves?

what car is it?

 

have you checked the dimmer relay?

 

ok if its all at once i highly doubt its the bulbs......are the shifter lights on(right down next to the shifter(if automatic) and are the A/C control lights on as these also run on the dimmer switch...if they aren't check any fuse related tot hem including under hood fuses as these are a pain in the ***....if you also have no corner markers or taillights it is almost definitely an under hood fuse