Oil Light ON on 2003 Dodge Grand Caravan

Just had my oil change now my oil lamp light comes on why is this coming on?

Asked by for the 2003 Dodge Grand Caravan
Check the oil level in your 2003 Dodge Grand Caravan. If it is low don't drive it back to the repair shop without bringing it back to the correct level. If the level is full then perhaps the oil pressure sensor or the oil pump have failed.