When the gas bliner goes on, how many miles do i have left until the car completely runs out of gas?

And another one, is when i take off the keys of the ignition, my interior lights turn on... is there a way too keep the interior lights off?

I would appreciate the help thx!

 

I think when the light comes on you have 3 gallons left in the tank. Somebody correct me if I'm wrong.

My interior lights turn off when I lock the car.

 

I have the message center on mine and it says low fuel when there are 50 miles till out, so I would guess its the same for you too. As for the lights...I don't know about that one.

 

I just searched my owners manual...nothing for the map light issue.
As far as the gas gauge..we found that "0 miles to empty" = 1 gal in the tank.