One problem related to hazard flashing warning light unit has been reported for the 2006 Volvo S40. The most recently reported issues are listed below.
While driving at night without warning: ?interior lights, wipers on ?all gauges went to zero ?all warning lights, airbag, stability ctrl, abs, others-on ?no turn signals or hazard lights ?no door locks ?no window operation ?random messages such as trunk open ?all problems continuing cannot drive car during previous incidents gauges started jumping, lights blinking, warnings flashing, car has completely shut down while driving.