* Low oil pressure. This is the most likely cause of the oil pressure light coming on. If the oil level is low, the oil pump won't be able to circulate enough oil to the engine, which will cause the oil pressure to drop. This can damage the engine, so it's important to check the oil level and add oil if necessary.
* Faulty oil pressure sensor. The oil pressure sensor is responsible for sending a signal to the dashboard indicating the oil pressure. If the sensor is faulty, it may send a false signal that the oil pressure is low, even when it's not.
* Oil pump failure. The oil pump is responsible for circulating oil to the engine. If the oil pump fails, the engine won't get any oil, which will cause the oil pressure to drop and the engine to seize.
* Clogged oil filter. A clogged oil filter can restrict the flow of oil to the engine, which can cause the oil pressure to drop.
In addition to the above, there are a few other things that could cause the car to shut off when you brake.
* Brake booster failure. The brake booster is responsible for assisting you in braking by amplifying the force you apply to the brake pedal. If the brake booster fails, the car may not brake properly and could stall.
* Transmission failure. If the transmission fails, the car may not be able to move forward or backward, and it could stall.
* Electrical problems. Electrical problems can also cause the car to stall, such as a faulty ignition switch or a loose battery cable.
If you're not sure what the problem is, it's best to have the car towed to a mechanic for diagnosis and repair.
