Excuse me, your elevator is low on oil

Low oil
I was in a hurry to capture the image, which is why it’s blurry.

I stepped onto an elevator in a local retail mall’s parking garage and spotted this Low Oil button. I was so busy scrambling to get my phone out of my pocket and the camera pointed in its general direction that it did not occur to me to press it to see what would happen. Why on Earth is there a Low Oil button in an otherwise unremarkable elevator in Bellevue, Washington? I am hopeful it is because someone has a great sense of humor and not because pressing it would actually summon someone with a cart full of 5W–30.