What should I do if the oil pressure light illuminates while I am driving?

If the oil pressure light illuminates while driving, you should immediately pull over to a safe location and turn off the engine. Check the oil level using the dipstick; if it's low, add oil to prevent engine damage. If the light remains on after adding oil or if the oil level is normal, avoid driving the vehicle and consult a mechanic as there may be a more serious issue with the oil pump or engine.