My first guess is that a ground lead has disconnected somewhere...with the interconnectivity of a typical automotive lighting system, one bad lead can create a bunch of weird lighting failures.
2009 ML350 (84K) - Family vehicle
2001 CLK430 Cabriolet (71K) - Wife's car
2005 BMW 645CI (124K) - My daily driver
2012 Mustang V6 (60K) - Daughter's car