I had this happen with my wife's Sienna actually. It ended up being the door switch (the one that tells it the driver door has opened and closed). Check whether your door ajar light comes on when you open the driver's door. The theory of operation seems to be that the headlights remain on until 20 second after the drivers door has been opened and closed. With a bad switch, it seems to think the driver is still sitting in the vehicle and leaves the headlights on. It only took a $14 switch and about 10 minutes to swap it, but I probably spent an hour messing with things before coming up with a plausible theory (proved right in my situation).

The switch is only connected by one wire and grounds through the body, so good ground is necessary. When you test, make sure you put the screw in or your switch will probably not work.

There is absolutely a low fuel light. I've had it come on in my 2017. I'm fairly sure NHTSA requires it on all US vehicles. (Working to try to confirm this...)

Low washer fluid alert is not overly common, however. I've had plenty of vehicles without.

Re: low fuel lilght - ok, will keep an eye out for it, haven't seen it yet in 40k miles, and usually run pretty low on fuel before i fill up.

page 591 5th gen owners manual (2012 model year for reference). washer fluid lights are only for canada (probably due to more road salt conditions requiring frequent sprays, I wonder if the reservoir is larger too). low fuel light indicator is on all vehicles

For a while I didn’t know trd pro had auto headlight setting on stalk. I know in techstream, you can adjust the timeout duration after lock.

I thought I'd run mine really low the other day, gauge was just tickling the "E" line. Lowest I've seen since I've bought it.

I filled up 17 gallons. IIRC we have a 23 gallon tank.

Light won't come on until there's about 2-3 gallons left.

So I’m having a couple issues with my 2011 Limited.
1- The auto headlights turn on when the sensor is covered, or it is dark. However they do not turn off when light is back on the sensor, the interior lights do brighten up like day mode though.
2- Auto lights don’t turn off when the vehicle is turned off, I exit and try locking (it won’t let me lock). The door switch is working, already checked that.
3- With the ignition OFF, if I switch the lights ON, or to AUTO when it is dark, the climate control comes on as if I put it in the ACC position.
Totally lost as to what could be causing this.
Any ideas?

do you have an aftermarket remote start installed? with ignition OFF - you turn your lights on and your climate control starts working? that is strange. I know for some of these settings on the auto lights they can be adjusted

UPDATE: Issue resolved.
I don’t know that anyone else will ever have this same problem, but I figured out what it was. I think it would be nearly impossible to figure out if it wasn’t for these weird circumstances.
The passenger heated seat didn’t work, so I pulled the switch. The switch was burned out inside, somehow shorting out the climate control and lighting circuits, creating that weird issue. Ordered a new switch, but with the switch disconnected everything is working fine.

I know, this issue was so strange, a real head-scratcher. But glad to have resolved it along with the heated seat issue!

Low fuel light will come on, but you need to bring it down pretty damn low (mine usually doesn't trigger till my range is down to about 25 miles at most).