Or drivers side low beam only so far. Just replaced it 2 months ago with Silverstar bulbs and low beam is out again. Voltage is good plug does not look burnt but caked with dried out bulb grease. Checked with Toyota and they use Sylvania bulbs also. Can get genuine Toyota at 50 a piece. These are the halogen also. Any help much appreciated...............Matthew
Did more research. Always do before posting and this is common especially with the left side. What a pita.
Have you tried long life bulbs? The electrical system of a Prius runs at a slightly higher voltage than a non hybrid car. The long life bulbs gain the long life by being rated for a higher voltage than they use. They won’t be long life but they should last longer than a standard bulb.