Immediate Actions:
1. Pull over immediately and turn off the engine. Continuing to drive could severely damage your engine.
2. Check the oil level. Use the dipstick to see if the oil level is low. If it's low, you'll need to add oil (the correct type and amount for your engine – check your owner's manual). Do not overfill.
3. Check for leaks. Carefully inspect the engine for any visible oil leaks. Look under the car as well.
Possible Causes (after checking oil level and for leaks):
* Low oil level: This is the most common cause. If the oil level is low, you need to determine *why* it's low. Is there a leak? Did you forget to change your oil?
* Oil pump failure: The oil pump is responsible for circulating oil. A faulty pump won't deliver enough oil pressure. This is a major repair.
* Worn bearings: Worn engine bearings allow oil to escape, reducing pressure. This is also a significant repair.
* Clogged oil filter: A severely clogged filter can restrict oil flow. This is a relatively easy fix (replace the filter).
* Faulty oil pressure sending unit: This sensor could be faulty and giving a false reading. While less serious than the other problems, it still needs attention.
* Oil that's too thin (wrong viscosity): Using oil that's not the correct viscosity for your engine's operating temperature can result in low pressure. Check your owner's manual for the correct oil type.
What to Do Next:
* Don't start the car again until you've addressed the possible causes. If the oil level is low, add oil *carefully* and check for leaks.
* Have the car towed to a qualified mechanic. They can diagnose the problem accurately and perform the necessary repairs. Ignoring the issue risks very expensive engine damage.
* Avoid driving the vehicle until the problem is resolved.
The low oil pressure light is a critical warning sign. Ignoring it could lead to a seized engine, requiring a very costly rebuild or replacement. Get it checked out immediately.
