Sims 3 Ambitions: Firefighter won't go to fires

I recently installed the ambitions expansion pack. I already have late night, university life and island paradise. My sim joined the fire fighter career but I noticed that no car or anything came to pick my sim up for work so I had to manually make my sim go to the fire station, the second day my sim wouldn't go to work so I changed the work outfit and then she went to work, the third day a car came to pick my sim up and she went to work. My sim can do things like upgrade and maintain the firetruck and alarms. There is only ever one other sim at the firestation but my sim has met other people around town who are firefighters but don't come to work. My sim lives in the town that came with ambitions and I have no mods.

However, the main problem is that my sim can't go to any fires. The fire alarm rings once a day and everytime it does I try to make my sim respond to the fire but she doesn't. I have tried clicking on the firetruck, the fire alarms and the house where the fire is on the map but everytime nothing happens, the alarms stop ringing and if I go on the map, the fire is no longer there.

My sim is still a 'watergirl' and can't level up because she's already mastered handiness and athletic, and she cannot respond to fires. It looks like this has been a problem for a long time, is there a solution yet? I would prefer not to reinstall, and I don't really want any mods.