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08-08-2019, 02:46 PM
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#1
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Senior Member
Join Date: Mar 2018
Location: Wisconsin & the U.P.
Posts: 190
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How do you adjust headlights?
I have a 2104 Berkshire and the headlights illuminate the highway very poorly. It would help if they were adjusted upwards. All I can figure out is to adjust the light assembly mounting bolts. Doing this will adjust the bright and dim at the same time, this doesn't seem right to my previous years of adjusting headlights.
Bottom photo is the backside of the RH light assembly.
Thanks!
__________________
2014 Berkshire 400QL; sometimes towing 2018 Silverado and other times
towing my 20' Aluma trailer with a vehicle on it.
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08-08-2019, 05:11 PM
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#2
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Senior Member
Join Date: Apr 2013
Location: Up and down the east coast
Posts: 2,351
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I bought two new OEM assemblies. Haven’t installed them yet
__________________
2020 S.O.B.
2016 Jeep Wrangler 75th and a
Cooler full of good ideas
Full Time in the Summer, soon
Part Time in the Winter
Days Camped, Not Enough
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08-08-2019, 06:18 PM
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#3
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Senior Member
Join Date: Mar 2015
Location: Calgary
Posts: 994
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Erniet,
If you look at your photo of the back of the headlights, you'll see a white toothed wheel on the extreme right. They are designed so that you can turn a screw driver that is inserted beside the wheel and catch the teeth to turn the wheel slowly. That turns a gear and adjusts the headlights. Look around and there should be an up-down and left-right wheel for each lamp. Sometimes there are markings to say which is up, etc.
The headlights are Autoeyes clones of Toyota Highlander headlights and Autoeyes copies the OEM alignment system. So, look up the alignment of Toyota Highlander 2001-03 headlights.
–Gordon
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08-08-2019, 06:41 PM
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#4
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Senior Member
Join Date: Mar 2018
Location: Wisconsin & the U.P.
Posts: 190
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Thanks Gordon, I really appreciate it.
__________________
2014 Berkshire 400QL; sometimes towing 2018 Silverado and other times
towing my 20' Aluma trailer with a vehicle on it.
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08-10-2019, 08:52 AM
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#5
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Senior Member
Join Date: Jul 2014
Location: SouthWest Michigan
Posts: 5,977
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Many Many years ago we would shine headlights on a blank garage wall,,,
So we would know how we were changing the lights !!!
Good Luck !!!
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08-10-2019, 09:55 AM
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#6
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Just as confused as you
Join Date: Aug 2013
Location: south central Wisconsin
Posts: 5,108
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The blank wall headlight aiming procedure found here https://www.wikihow.com/Adjust-Car-Headlights or https://shop.advanceautoparts.com/r/...ust-headlights can be adapted to larger vehicles. The 3.5 foot from ground at 25 feet is what you are aiming for with all size of vehicles. Years ago when I had my first car all garages and service centers had a wall marked off the same way with a DOT issued wall banner. I have used the same procedure on my last 12 vehicles over the years, 4 trucks, 1 car and 1 mini-van were new from the dealer. My latest 2018 Silverado was fine when I bought it, but I don't drive much after dark now days.
__________________
Richard & Jill
2014 Flagstaff 832IKBS Classic Super Lite
2018 Silverado 1500 Crew Cab Z71 4WD All Star Edition
Camping since 1989, Seasonal since 2000.
Car Shredder Op/Tech, Scrap Metal Recycling - retired
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12-13-2019, 06:57 PM
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#7
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Senior Member
Join Date: Mar 2018
Location: Wisconsin & the U.P.
Posts: 190
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Well tonight I tried adjusting my headlights, both sides, by turning the toothed wheel. I ended up turning many many revolutions and the headlights never moved. By turning the toothed wheel one direction it got hard to turn. I never could find a 'up' or 'down' on the back of the housing, nor an arrow pointing up or down.
Anyone have any ideas?
Thanks, Ernie
__________________
2014 Berkshire 400QL; sometimes towing 2018 Silverado and other times
towing my 20' Aluma trailer with a vehicle on it.
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12-13-2019, 11:40 PM
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#8
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Senior Member
Join Date: Mar 2015
Location: Calgary
Posts: 994
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The adjustment using the toothed wheel is famous for being very slow. Shine the lights against some vertical surface like a wall of board. Mark the hot spots and then start turning. You should see it move.
If you got to one point where you can't turn any more, you've come to the end. Might have to reposition the mounting points of the headlights.
BTW, I've only adjusted the lights on my car and not the motorhome. But, the systems are the same.
–Gordon
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12-14-2019, 12:31 PM
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#9
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Senior Member
Join Date: Jul 2017
Location: North of Seattle, WA
Posts: 17,354
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Quote:
Originally Posted by gordonsick
The adjustment using the toothed wheel is famous for being very slow. Shine the lights against some vertical surface like a wall of board. Mark the hot spots and then start turning. You should see it move.
If you got to one point where you can't turn any more, you've come to the end. Might have to reposition the mounting points of the headlights.
BTW, I've only adjusted the lights on my car and not the motorhome. But, the systems are the same.
–Gordon
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Don't just turn the adjustment and expect the assembly to move. It helps to press on the back of the housing as well as sometimes they stick a little.
More than once I've made adjustments, gone out and driven, only to have the beams move after a few bumps.
All are slightly different.
Haven't had to adjust mine for several years now. Quit driving at night. No need to drive the hours I used to and now I merely start when I feel like it and pull off for the night by 4 PM.
__________________
"A wise man can change his mind. A fool never will." (Japanese Proverb)
"You only grow old when you run out of new things to do"
2018 Flagstaff Micro Lite 25BDS
2023 f-150 SCREW XLT 3.5 Ecoboost (The result of a $68,000 oil change  )
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12-16-2019, 11:52 AM
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#10
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Senior Member
Join Date: Mar 2018
Location: Wisconsin & the U.P.
Posts: 190
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That's all I want, is to be going down the road and and the lights shoot straight up or down. In other words have a screwdriver and some old clothes handy in case I need a quick adjustment! Thanks for the 'heads up'.
And Gordon, I've thought about your idea of moving the whole assembly.
Thanks Guys!
__________________
2014 Berkshire 400QL; sometimes towing 2018 Silverado and other times
towing my 20' Aluma trailer with a vehicle on it.
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12-16-2019, 12:48 PM
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#11
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Senior Member
Join Date: Jul 2017
Location: North of Seattle, WA
Posts: 17,354
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Quote:
Originally Posted by erniet
That's all I want, is to be going down the road and and the lights shoot straight up or down. In other words have a screwdriver and some old clothes handy in case I need a quick adjustment! Thanks for the 'heads up'.
And Gordon, I've thought about your idea of moving the whole assembly.
Thanks Guys!
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A pair of baggy coveralls are great to have around. Baggy so they slip on easy over whatever you are wearing and are great for just about every task around an RV.
Whenever I have to work on either truck or trailer while on the road I swear that it THROWS dirt on me 
__________________
"A wise man can change his mind. A fool never will." (Japanese Proverb)
"You only grow old when you run out of new things to do"
2018 Flagstaff Micro Lite 25BDS
2023 f-150 SCREW XLT 3.5 Ecoboost (The result of a $68,000 oil change )
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