Gas light in 5th Gen 4Runner

So I checked the specs on my wife's 2016 4Runner and it says it has a 23 gal fuel tank. The problem is that the computer "cruising range" says she has 0 miles to go until empty and we pull over and fill up and voila, only 19.4 gal of gas were used. Is this normal? Reset the computer? What do you guys think? I told her not to worry, she's got 3 more gallons of gas but she doesn't believe me!
@bullaculla

 

its a Toyota thing, they are trying to save us from ourselves and not run out of gas. On the Tacoma when the light comes on there is still a few gallons in there.

 

Gas light will come on both my 2nd gens with 5-6 gallons left, agree that it's a toyota thing.

 

When my 3rd gen says zero fuel left, i have 2 gallons. when light turns on, 4 gallons.

 

so misleading Toyota!

 

My Tacoma does the same. I'll try and reassure her to remain calm when she gets below 25 miles to go. (I guess it didn't help that the salesman said "don't let it get below 25 miles left")

 

Yeah that's normal, basically there's a built in reserve to get you to the next station!

 

Sorry man. I rarely drive the 4Runner. I didn't even know it has the distance to empty thing...

 

Thanks fellas. I'll keep trying to convince the wife to drive it until it runs out of gas and then fill it up with Jerry can to see how far it'll go. She doesn't like that idea so much

 

It's a fancy new feature apparently!

 

Ours is a 16, it has it. I just checked

 

My work vehicle (scion xb) does the same thing, I've driven over 50 miles on 0 miles left. If you want to figure out how far the range is just carry a gas can and trip your miles after reaching 0.

 

Yup we got a 16 too

 

The fuel going thru the pump helps keep it cool, it does not to be immersed in fuel to keep it cool.

I've run my 'yota's on empty for 14 years, never ever had a fuel pump issue.