They are not backlit
In the top of the trunk near where the brake light is located, there is a small plastic window, remove it and you access the light bulb.
You can not, you will have to replace the entire tail light.
That light is for low oil pressure, not low level.
The brake light switch is above the pedal.
The cause of the code that turned the light on will have to be repaired before the light will turn off.
Chrysler uses that abbreviation for "electric back light" which is what they call a heated rear window defroster.
The abs light stays on when the computer has detected a malfunction and set a trouble code.
The meaning of dashboard symbols and warning lights on a Chrysler town and country can be any of things. When you see the light it will mean low tire pressure.
There are pages and pages of things that will turn the check engine light on. You need to have it checked for codes, and can diagnose from there.
No there are no timing marks. The engine controller controls the ignition timing the input sensor is the knock sensor.
Which model of chrysler van? Resubmit the question with make, MODEL and year.
The airbag light stays on when a malfunction has been detected. The failure will need repaired to get the light off.