Trouble starting, making weird noise

Count your blessings and keep your fingers crossed.

Could be bad flasher unit. Hazards use separate flasher.

I would tend to believe it's more likely a worn sway bar bushing or link if it's a rattle or a small clunk, if it's a loud clunk probably a strut, try bouncing he back of the car when parked, if you get the clunk probably a strut if only when driving,turning,braking probably just a bushing on the sway bar

Think you need to stop using it & have a repair
shop look at it

Cancel the turn signal ( doubles as a park light switch and warns you audibly that the park lights are on)

it could be in fact the turn signal sound since this is produced electronically by the cluster

pull the cluster and confirm its making the sound

I replaced quite a few at the dealer for similar concerns

most likely its the turn signal relay. which is under the hood. in the fuse box. also make sure ur running lights are working if they are connected to the turn signal.

maybe is the air compresor and that's the noise that you hearing. Put the air in off if the noise stop, your problem is the compresor.

This problem can be three things. The ignition switch is a good place to start but its under a recall and you should not spend any money on this repair. The passlock system next to ignition switch should probably be changed at the same time and is also under a recall. The instrument cluster is the most probable in your case. The reason i say that is because the key is the headlights not turning on you may also have some lights on the instrument cluster flickering on and off at weird times.The speedometer or other gauges are probably not working all the time. if you are handy you can remove the cluster and send it out for repair. The tech who repairs this might even tell you that the instrument cluster has nothing to do with non start issue but it does. the passlock anti theft reads the ignition key when you insert it into ignition cylinder. Once you turn the key the ignition sends a signal through the instrument cluster to the pcm. the pcm will allow the car to start if the correct signal is recieved. If the pcm recieves no signal it allows the car to start for a second and then kills the car.

sounds like your electronic flasher unit maybe stuck causing the noise. they are generally located under the dash on driver side just below the instrument cluster.