Hope this is ok to post here, I’m borrowing my friend’s car for the summer and when I got it from him it started up no problem but every time I’ve turned it on since there’s 30 seconds of what I assume is the alarm (or some kind of critical engine disaster that sounds like an alarm but probably an alarm) and then the car starts normally.
I think it’s from unlocking from the passenger side or trunk since the old key doesn’t work in the driver’s side lock. Manual doesn’t say anything about an alarm on start.
Is this the sign of a bigger problem/a problem other than unlocking weirdly? Any suggestions other than ignore it/disconnect the alarm system? Thanks!