Is there any way to Adjust the sensitivity on the Auto Headlight System on the Cobalts? If year specific is needed, I drive an '07SS

Thanks!

 

nope why? you can turn them on or off manually and or cover the "eye" to make them auto come on at times

 

Actually we can't turn them off, unless the car is sitting still with the parking brake up. No way to adjust the sensitivity either as far as I know.

 

i can turn mine off at anytime. maybe canada model is different?

 

yea canada has some laws/regulations so they dont get the on/off option

 

DRLs have been required here since the early 90s. The Cobalts here get reprogrammed so you can't turn the autolights off unless you're not moving and the ebrake is on.

 

ummm, unless older years are different I can turn mine so that only the parking lights are on and not the headlights and I can also turn them off by turning the switch back instead of forwards

 

That sucks for you guys. i have an 06, and i can turn mine on or off as i please. while both moving and non moving

 

Thats great, but as stated the CANADIAN version of the cobalt is different, being from Canada, I can back up what there saying, and yes it sucks

 

pull the fuse?

 

True true about the Canadian market cars not allowing you to actually use the headlight switch to turn your lights on / off as you see fit

Only way I have found to over ride this behavior is to add a variable resistor in parallel with the light sensor on the dash to con the BCM into thinking it's lighter out than it is.
Have not done this yet myself and I am not sure what kind of resistance range you would need.

Also, the BCM appears to use the sensor to determine when the dash lighting (cluster, radio, etc) needs to be dimmed. Bypassing the sensor appears to keep these lights on full brightness, dimmer knob has no effect.

Do a search for "Canadian auto headlight bypass", I remember seeing a thread on this site where the op did this with a fixed resistance instead of a variable - his goal was to defeat the auto headlights completely though, not adjust the sensitivity, so a plain old resistor worked for him.

 

I wonder if you can ground the lead from the drls at the ebrake so they stay off during the day.

 

i just got my single bulb HID's and since i no longer have my highbeams i just flip my switch for highs and all my lights go out.

 

Auto headlights and DRL's are different. Pull the fuse and DRL's are gone, but for the auto headlights the light sensor is horrible and every bright sunny morning on the way to school the car thinks it's dark and I can't read the radio or DIC.

 

do you have the brightness adjusted to the highest setting?

 

Not that I know of.

 

I can crank that brightness knob but even when the early morning sun is WELL above the horizon it still fails. When I get a day off school here I'm gonna hack away and try to see what I can wire up.

 

Same same.....

Driving towards the sun in the morning, the lights go off (or rather, revert to the drl's) and the radio lighting goes to full brightness. Turn around, back to the sun - lights come on, radio display dims to the point of uslessness even at max on the dimmer. I'm being blinded by the sun in the rear window but it's "dark" according to the sensor?

Working on an adjustable solution, going to try it out this weekend. If I can't make that work, I will just add a resistor and a switch across the sensor, make it think it's daylight all the time and just flip the switch when I want the lights on.

 

07 DRL/Auto lights are controlled under the same fuse last I checked.

....

 

False, in anyway.

Pulling that fuse does not affect the actuation of automatic head/dash lights by the ambient sensor on the dash.

 

maybe we should label the title CANADIAN Auto headlights?!

just a thought

 

I'm pretty sure it's the same in this regard. You're telling me on your car when you pull the DRL fuse your car no longer turns the headlights and cluster lights on when it gets dark?

Didn't think so.

 

i'll look again, but i keep thinkin over and over that someone before had said that in 07+, DRL and auto headlights can be disabled by one fuse or relay, forget which of the two.

 

It's just the DRLs. Auto Headlights can't be disable by anything that easy.

 

https://www.cobaltss.net/forums/electronics-audio-video-49/canadian-auto-headlights-bypass-solution-154636/

Here ya go.....what i did to kill the autolights......Hope it helps ya....Later