Saturn Repair Questions? Ask a Mechanic for Answers ASAP
Hello my name is XXXXX XXXXX I will be more that happy to assist you.
One of the door Ajar switches may be sticking or bad. Normally it is one of the front doors switches.
Unplug both of the switches and see if the dome light goes off.
If it still stays on let me know and I will load up the info to remove the rear door switches.