Turn the light off

Check headlamp fuses and relay.

1. Launch the Settings app on your iPhone.
2. Tap on General.
3. Inside the General menu, tap on Accessibility.
4. Scroll down a ways and under the Hearing section, turn the option for LED Flash for Alerts to On.

Could be your igniter or possibly your control board. The red light not being on indicates you most likely have an electrical issue. Check your breaker as well. If you nee any parts this site will have them all

http://www.suburbanrvparts.com/

Maybe the battery inside key fob needs changing. It sounds like its to do with the alarm / immobiliser.

There is a slider to dim instument panel lights, if the slider is past the click position it will keep inside lights on. Move slider till moves past the click position toward dim, this should turn inside lights off.

Take the battery cables off one by one and clean the inside of the clamps with sandpaper/emery cloth. do the post also, re-clamp and try again. Many times the inside of the cables become corroded and have enough contact to power the lights but when you try to start it there is not enough flow to turn the starter.

Try pressing the switch by hand and see if this turns it off, if so try some packing on the door where it contacts the switch

There's probably something sticky inside the button between the plunger and the housing or the spring inside is weak. Try to clean it out. If that doesn't work then replace it.

How did you get inside?