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Another Headlight Question, 3-5-2020
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So as suspected, if the conversion was done in the manner intended by Prevost there would be no problem.
Perhaps naming the converter of the headights so others that have the same headlight conversion can be alerted?
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I really don’t know who did the conversion. I’ve looked for labels and names on the parts and don’t find any except for the headlight buckets, which were Hella.
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But the problem still exists for 2010 and newer coaches (VIP) because of a supposed regulation on allowable light levels. My 2011 had it, and my 2016 still has the exact issue the OP was talking about.
I wish Prevost would fix it or tell us how we could do it ourselves……
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Mark, it sounds like a safety issue and NHTSA might be interested in that. With your multiplex coach you cannot do anything unless Prevost decides to give you access to the programming.
If you can find an unused house circuit not in the multiplex programmed part of the system you can by-pass Prevost completely but then it becomes Mickey Mouse and that to me isn’t worth it.
But if you did do that you could have headlights similar in strength to sun spots.
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Well, curiosity got the best of me so I went out to the ‘Liberty’ to check the headlights (2014 chassis) as it is in storage.
We have a black car so I parked it in front of the coach perpendicular about 10-12 feet out. It gave me a perfect view of what the headlights were doing.
I turned the ignition on, let it run through the cycle and then I turned on the headlights. I flipped on the high-beams; our high-beams are the same bulb as the DTR lamps.
I cycled the high-beams and then back to the regular headlights. The headlights do go off when the high-beams are activated. I saw no difference in volume of light coming from the headlights when turned back on. I didn’t notice any ‘warm-up’ of the light beam.
Now, we’ve only driven at night a few times. Like Tom, when it’s dark, it’s time to eat!!!!
One of these days I’ll try them at night while on the road, right now we are hunkered down in ‘Elvis Country’.
Side note: Since I had the ignition in the ‘on’ position for a few minutes while checking the headlights, the hazard lights came on automatically with the message ‘shore cord connected’. I’ve never seen it do that before. I’ve seen that message normally in the message center when I start the coach before I disconnect but the hazards have never come on.
Be Safe!
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Mark, I think the hazards are associated with the rose petal dispensing system and may be an indication the dispenser is full or empty. I forget which.
1999 XLV X-6872, liberty #440 -
After you go to high beams, and have them on for a few minutes, you will for sure notice the warm up period when you switch back to low beams. I have had two coaches this way, and it is very noticeable.
Next time I am in Goodletsville, I will have to ask them about it.
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Do you think that the HID/xenon lights were OEM (Prevost) installed or did Liberty do the conversion from halogen?
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OEM all the way. Prevost has admitted they have this setup the way it is due to regulations on light brightness.
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I had my headlights (low and high beams) changed to LED’s by Marathon in Grand Prairie earlier this year. The replacement lights are from JW Speaker (Model 95). They are great and provide good light while driving. I had upgraded the halogen lights on the Millennium to HID projector lights. They were really good, but I didn’t like the warm up period for the high beams which is why I went with the LED’s for the Marathon. I just upgraded the fog lights to LED’s and they are brighter than the high beams. I also like the LED’s from JW Speaker because they have a dark tint when off that blends much better into the black paint on the front cap of the Marathon. According to Marathon they are plug and play.
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JON, How do you adjust the headlights on a 1998 XL ? Right/Left, Up/Down. Went to Prevost Mira Loma. Worse after their adjustment.
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No idea. Never adjusted them.
What does the book say?
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dmac , I needed to adjust our headlights after having new brighter ones installed . Open your lower drive side door and you will see the 4 screws used for the adjustments. After playing around there you are now ready to deal with the curb side , or at least thats what I thought , lol . That adjustment is not so easy . You can try to remove a interior panel and reach way down there or do as I needed to do and remove the front bezel and do as you did on the drive side .
Pull up about 6 feet or so from a wall and start to aim your lights . Then drive the coach at night or early in the morning as we do to test . Readjust as needed and in time you will have the lights shining far enough to at least see the deer before you hit him . I was thinking of using the spot light on those dark empty roads but seem to forget to turn it on . One day I might ask a cop about using it 🙂
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Al: Just use the spotlight. If a LEO doesn’t think it’s a good idea, he’ll let you know.
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