Headlights jitters/tremors....driving me crazy
10-24-2013, 10:43 PM
#22
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I've determined mine do not jiggle anymore than the front of the car bumps. Meaning, the lights direction is on par with the car's nose. Going over the 405 bumps tonight made me see that there was no extra "jiggle". Just a crappy freeway making my car do not-so-fun things.
10-24-2013, 10:45 PM
#23
I've determined mine do not jiggle anymore than the front of the car bumps. Meaning, the lights direction is on par with the car's nose. Going over the 405 bumps tonight made me see that there was no extra "jiggle". Just a crappy freeway making my car do not-so-fun things.
11-04-2013, 08:12 PM
#24
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So I finally took the car in to my dealer who has been excellent so far. They kept the car for a couple of days and gave me a loaner. They had to open the wheel wells or something to get to the light assembly.
Anyway, they found nothing that would cause the lights to wiggle, jiggle, dance or whatever.
I still notice the problem when I go over bumps. the light beam at a distance seems steady and does not bounce but there is some slight jiggle immediately in front of the car nose that happens for a split second after a bump! Should I just learn to live with it?
Anyway, they found nothing that would cause the lights to wiggle, jiggle, dance or whatever.
I still notice the problem when I go over bumps. the light beam at a distance seems steady and does not bounce but there is some slight jiggle immediately in front of the car nose that happens for a split second after a bump! Should I just learn to live with it?
11-06-2013, 02:15 PM
#25
So I finally took the car in to my dealer who has been excellent so far. They kept the car for a couple of days and gave me a loaner. They had to open the wheel wells or something to get to the light assembly.
Anyway, they found nothing that would cause the lights to wiggle, jiggle, dance or whatever.
I still notice the problem when I go over bumps. the light beam at a distance seems steady and does not bounce but there is some slight jiggle immediately in front of the car nose that happens for a split second after a bump! Should I just learn to live with it?
Anyway, they found nothing that would cause the lights to wiggle, jiggle, dance or whatever.
I still notice the problem when I go over bumps. the light beam at a distance seems steady and does not bounce but there is some slight jiggle immediately in front of the car nose that happens for a split second after a bump! Should I just learn to live with it?
05-24-2014, 01:01 PM
#27
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Yes, they still happen and still drive me crazy
So with many more C7's sold since the last post, anyone else noticing this or is it still just me?
My headlights seem to jiggle or bounce when going over a bumpy road. I notice it mostly close to the front end of the car. It does not seem to affect the light beam distally.
It is of course worse when in sports mode or track mode but still happen in touring mode
Very annoying!
So with many more C7's sold since the last post, anyone else noticing this or is it still just me?
My headlights seem to jiggle or bounce when going over a bumpy road. I notice it mostly close to the front end of the car. It does not seem to affect the light beam distally.
It is of course worse when in sports mode or track mode but still happen in touring mode
Very annoying!
05-24-2014, 01:18 PM
#28
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I only have noticed the headlights jiggle when I hit a bump due to the stiff suspension. Does yours continue to jiggle after a bump?
05-24-2014, 03:29 PM
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05-24-2014, 03:35 PM
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I found this interesting explanation on a mustang forum where somone posted a reply to a similar complaint:
"You first need to understand how the HID headlamps work. There is only one HID bulb per side and is the only light source for low and high beam function, these HID bulbs are fixed in the housing and do not move. When the high beams are activated, an electronic shutter is moved inside the headlamp which directs the light differently through the projector lens, basically changes the focal point and thus projects the light from the HID bulb further down the road.
Now you may know where this is going. Sometimes the shutter comes loose and moves around when the car hits bumps and changes the focal point of the HID and thus "bounces" the light around in front of the car. I have read maybe two posts where this has happened to people and the only fix is complete headlamp replacement.
Those dealer mechanics can look at and tighten fasteners outside the headlamp all day long and that will not solve the problem. The problem is inside the headlamp."
Now you may know where this is going. Sometimes the shutter comes loose and moves around when the car hits bumps and changes the focal point of the HID and thus "bounces" the light around in front of the car. I have read maybe two posts where this has happened to people and the only fix is complete headlamp replacement.
Those dealer mechanics can look at and tighten fasteners outside the headlamp all day long and that will not solve the problem. The problem is inside the headlamp."
Last edited by marktigerz; 05-24-2014 at 03:37 PM.
05-24-2014, 10:10 PM
#32
Mine jiggle quite a bit too, but only on one particular road home that is pretty bumpy. I always think there is something loose, but they do go back to normal again after...
05-25-2014, 01:44 AM
#33
). My lights are solid with zero jitter. Demand a jitter free life. 
05-25-2014, 11:02 AM
#35
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My stiff suspension C6 Z06 with wide, stiff 275 front tires has zero HID low beam headlight jiggle.
I don't see how the C7 should have the headlight jiggle being considered as a normal condition, if the C6 Z06 doesn't. Both had to be designed for the same application, under the same driving conditions and meeting the same federal laws.
I don't see how the C7 should have the headlight jiggle being considered as a normal condition, if the C6 Z06 doesn't. Both had to be designed for the same application, under the same driving conditions and meeting the same federal laws.