Do not continue driving. Pull over safely as soon as possible and have the vehicle inspected by a mechanic. Possible causes include:
* Low oil level: Check your oil level immediately using the dipstick. If it's low, add oil of the correct type and grade (check your owner's manual). However, even if you add oil and the light remains on, you still need professional help.
* Oil pump failure: The oil pump might be failing to circulate oil effectively.
* Leaking oil: There could be a leak somewhere in the engine or oil system.
* Blocked oil filter: A clogged oil filter can restrict oil flow.
* Worn engine bearings: Severe wear could be causing insufficient oil pressure.
Ignoring this warning light could lead to a seized engine, requiring a very expensive repair or even replacement. Get it checked out right away.