Automatic Lights Not Working

2017 OR, loaded

I washed and detailed the truck 2 weeks ago. Since then the auto lights don’t work. There’s nothing obstructing the sensors. It just totally stopped working.
Any ideas?

 

Are you using the correct light bulb fluid?

 

Mines kinda unreliable... lights will often go on when they probably shouldn’t and not go on when they definitely should!

 

No

 

That might be the issue.

 

Synthetic works the best.

 

Now the bigger question is, which brand?

 

Not sure which brand I bought. But I am happy with it.

 

You magnificent bastard.

 

So any real help would be awesome.

 

Is your 2017 still under warranty? The sensor might need to be replaced.

 

Warranty up?

 

Have you tried swapping the sensor with a known good one?

 

Since you detailed the truck, did you verify the stalk is still in the Auto position?

 

Just out of warranty. Of course now something happens!

I have not. Any way to find the part number?

Yes

 

Next step, did you use any product such as Armor all on the sensor?
I am going to assume the lights do work manually.

 

Does the dash still show the auto symbol? Are your high beams in the on position?

 

Sure do hate it when something doesn't worl.

 

Call the parts counter or Google it?

 

Nope. Nothing was used on the sensor. I can still turn them on manually

I’ll have to check the dash. Why would my high beams need to be on?