2008 prius headlight hid vs halogen how to#

These lamps typically die a slow death, unlike filament lamps that tend to die in a flash on startup. The gas pressure also plays a role in the energy required to run the lamp but both of these parameters have to be balanced with the desired light output.

The e-mix lowers the work function so that a lower anode voltage can be used to ignite and power the lamp. This is done to both hot and cold cathode lamps. One commonly used method for extending the lifespan is to dope the electrodes with an emission mix (e.g.thoriated). (Did They charge you or was it warranty?) You never know, one day they may owe you a refund. Oh, and if they charged you to fix it, keep your R.O. Search this sight and you’ll see some stories. Shouldn’t that lead to a government reqired recall? What I don’t understand is why Toyota hasn’t had a campaign to replace some of these faulty parts before people get tickets or possibly have accidents. Checking the wiring and ECU on the “dead” side comes next. Simple, eh? A bulb that works on one side, but not the other, is generally a good bulb. Technicians are advised to swap bulbs, right to left. It usually is a bad bulb, HID ECU (computer box), or wiring/connecter.

2008 prius headlight hid vs halogen how to#

Toyota dealers have access to their own TSBs (Technical Service Bulletins) that tell them how to diagnosis this problem. There Have Been Several (Many?) Prius Headlight Horror Stories Posted Here. Lesson learned, all Toyota dealers are not the same.Īnswer by: common sense answer 8:06:45 AM Were overheating, going out, then coming back on. We took it to the dealer we bought it from and they gave us a loaner and then ended up replacing the “computer/box” that controls the headlights annd two new lamps. I said, “forget about it.” Then we were stopped and given a warning ticket for a burned out headlight. Toyota (not the dealer we bought from) wanted to charge $140 to replace one lamp on my wife’s Prius. A couple of months back I had asked about Prius headlights. Here’s A Rerun Of A Recurring Problem Discussion.