I've had both low beams go out before with high beams fine.
According to the 09 Vibe owner's manual,(available at
viewtopic.php?t=755 ) there seems to be five fuses associated with headlights in the under hood fuse block
- 09hlf.jpg (46.84 KiB) Viewed 422 times
Since 14 and 15 are labelled "low beam", perhaps 12 and 13 are for high beam.
I don't have wiring diagrams for the 09, but in the 03 there is a main headlight relay, and another one named "Dimmer" that controls the high beams. If it's unlikely that both high beam parts of the bulbs burned out, its also unlikely that both high beam fuses burned out. Maybe whatever works as the dimmer relay in an 09 isn't happy, or perhaps an issue with the switch on the column.
When you try to turn on the high beams, do the low beams go out?