Write-Up: Replacing Twilight Sentinel Photo Cell

Wow, that is the opposite of my car. The next time I go to the garage I will pull out the parts I grabbed to see if they can help you.

I don't think that will help, but thanks. Maybe what I need is an updated photo cell that isn't sensitive to LED outdoor lighting. I wonder if some kind of stick on filter will help.

The last time I checked the part number was 914032 but nowhere to be found.

LARRY70GS wrote:

My Twilight sentinel stopped working outside long ago.  I recently got a garage for the Riviera, and I noticed that in the dark of the garage, the lights come on immediately upon starting the engine.  It is still dark outside as I pull the car out, but 15-20 seconds later, the lights go out, and I have to put them on manually.  No big deal, but I was wondering if the newer LED lighting outside triggers the sensor enough so that it thinks it is daylight?

It's not so much the "newer LED lighting" as it is any lighting with the color spectrum and intensity of sunlight. As compared, say, to lighting in a tunnel.

So yes if the night lighting is bright enough and has a spectrum more or less of daylight, the sentinel will think it's time to turn out the lights.

[quote="albertj"]

LARRY70GS wrote:

It's not so much the "newer LED lighting" as it is any lighting with the color spectrum and intensity of sunlight.  As compared, say, to lighting in a tunnel.

So yes if the night lighting is bright enough and has a spectrum more or less of daylight, the sentinel will think it's time to turn out the lights.  

That's exactly what is happening.  I am wondering whether it is my particular ambient light sensor, or whether this is simply a consequence of the newer LED street lighting.  Since a new light sensor is no longer available, maybe some kind of filter over the existing sensor might restore function?  If this is a problem with newer LED street lighting, do newer cars have a less sensitive sensor?

LARRY70GS wrote:

albertj wrote:

LARRY70GS wrote:

It's not so much the "newer LED lighting" as it is any lighting with the color spectrum and intensity of sunlight.  As compared, say, to lighting in a tunnel.

So yes if the night lighting is bright enough and has a spectrum more or less of daylight, the sentinel will think it's time to turn out the lights.  

That's exactly what is happening.  I am wondering whether it is my particular ambient light sensor, or whether this is simply a consequence of the newer LED street lighting.  Since a new light sensor is no longer available, maybe some kind of filter over the existing sensor might restore function?  If this is a problem with newer LED street lighting, do newer cars have a less sensitive sensor?

Hard to tell, Larry.

I took a look at Amazon - https://www.amazon.com/ambient-light-sensor/s?k=ambient+light+sensor - there are a bunch of sensors for sale, and several with the same top as our sensors but need new connector to go to the base.

The fix feels complicated. If the sensor could read the sky past the light, it would not be fooled. Not sure how to pull that off.