oil indicator light

[Jwhy]

Should the oil pressure light come on when the ignition key is turned to on?

 

[justsomeguy]

Yes.

 

[Ralph Johnstone]

Should the oil pressure light come on when the ignition key is turned to on?

The question you want to ask yourself is ..... " Is the engine running when the ignition key is turned to ON ?"

If it's not running, there's no oil pressure, so for sure you want to see that low oil pressure light doing its job.