first it was my headlights..I'd replace one and shortly after the other side would go. Now the tail lights are going out!! each time the other goes out when one is replaced!!! Any help, suggestions?
1. What is the car's odometer reading? 2. How many times have you replaced each bulb? 3. If a given bulb has needed to be replaced more than once while the odometer reading is 100K miles or less, use a digital multimeter to measure voltage at the dedicated jumpstart terminal to body ground. It should be ~13.8V when the Prius is READY. If much more, that would be the reason the bulbs are failing faster than "normal".