Table 1 shows one common exterior lighting related problems of the 2006 Volvo S40.
| Problem Category | Number of Problems |
|---|---|
| Hazard Flashing Warning Light Unit problems |
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.