Honda civic 2006 weird alarm sound?

So my car was on and I was just sitting in the drivers seat on my phone, and all a sudden I hear a loud alarm. It sounded exactly like a smoke detector alarm and I was shocked. I didn't think it was me, so I turned my car off and the noise stopped. What does this mean? I'm paranoid it'll happen again.

Check all the fluid levels including the antifreeze.

  • Which is better Honda civic 2006 or vw Passat 2006? I'm getting a car soon and I can't decide which one. Which has better reputation, safety, which will last me longer? They're both in good shape. About 130,000 miles on both.
  • My Car is having a weird sound occurring? Recently i been having a weird cranking dry sound occur, when i either turn right/left on the right front tire side, i was thinking it can be the axle since it is a front wheel drive car, i own a Honda Civic LX 1993 am transmission. Previous owners have tried to solve the problem, as you can see no luck. Any suggestions or assumptions that can be the problem solution or the component making this happen, can it be suspension or the chassis defect from the manufacturer?
  • Honda Civic making weird noise while turning after running over a curb? I have a 2010 honda civic and I ran over a curb the other night and it made a pretty bad sound but nothing was hanging and it drove just fine. But now, 3 days later, its making a weird noise when I turn. Wondering what it could be?
  • 2019 Honda Civic Touring is making some weird noises when I shift gears? It is a CVT so when I shift from D to R it makes a rattling sound only in R. It is quiet in N, D and P. I always keep it in Sport mode. It has about 134 Km on it.