chuck1992

I was wondering if anyone knows about why the headlights wont go down on c5 corvette after starting the car and turning the setting to off. They do sometimes but not all the time as of tonight they wouldn't at all. I assume that its not a fuse because it random and they go up and down when I start and turn off the car. I was wondering what ground I should check or what wires in the fuse box? or the blinker is bad but everything else on the blinker works just fine which leads me to think that it is the grounds. thanks for your help you are a big help!!

Fed Up

1. Assumption or not, check fuse #6 in the passenger foot well compartment.


2. Check your ground (driver side, ahead of the windshield washer reservoir) for tightness and cleanliness.


3. If not either of these two, you may need a new light switch / stalk.


Good luck!

Ducati Guy

Does this happen only at night or when it is getting dark. If so check to see if your twilight setting is "on". This is found in your owners manual.

runner140*

OR in a dark garage.

chuck1992

I don't have the owners manual how do i turn it off

Fed Up

Just press OPTIONS until it says Twilight and then press reset to change ON to OFF. Any other button to get out.

Ducati Guy

What he said. Easy as pie. And get yourself a manual. Lot's of helpful stuff in there.

chuck1992

what kind of manual should I get?

Ducati Guy

Owners manual. Easy to find usually on Ebay.

You can learn a lot from it.

jd911

http://www.corvetteactioncenter.com/...ual-links.html

Jim

73Corvette

THAT or spend a LOT of time on the forum... I have NO manuals and get along fine, because this forum is SO freaking awesome...

Ducati Guy

But where are they at 3:00 am..or when you are stuck on the road. Or....when you are bored and want to read something you like.

jackthelad

These cars are complex compared to earlier Corvettes. I cannot imagine trying to keep one running without the service manuals - they are fact, not hearsay.

Re headlights. When you turn them on, power goes to the motor. When you turn the switch back to "off" the motor gets a shot of power to bring them back down. The service manuals have the wiring diagram which enables you to understand exactly how the headlight up/down mechanism functions.

They were my very first C5 accessory purchase. Spend the money and buy them - and make sure they are for your year, things changed over the life of the C5.

junito147

Hello: You found out what was the problem with the headlights ? I have the same problem, but mine go down only if the high beam is on, if you can help me I appreciate your help. Thank you

73Corvette

Probably your "twilight" mode is ON... you need to go to the DIC options and turn it OFF...

junito147

it is off right now, they only go down when the high beam are on!

gpruitt54

Yep, that would be my first place to look. I turned the twilight to ON, and what you are describing was the result. The lights would not turn down. turned the twilight to OFF and all was well.

I don't get it, but it worked.

zwoobah

My '00 does this same thing. I've found that if I turn the headlight switch OFF with the engine still running, they fold down every time. If I shut off the engine first and then turn off the headlights, they stay up. I rebuilt both headlight motors with brass gears and it made no difference.

gpruitt54

How easy was the brass gear upgrade?

zwoobah

Getting the headlight motors out of the car takes some time and fiddling. Not much room to swing a wrench or get your fingers in place, but it's not too bad. Otherwise the job is straightforward. I used this kit, I think:

http://my.execpc.com/~rodney1/vettegears/index.htm