Hello. I just bought an 07 Grand Prix. I was going throught the DIC and set the "Exterior Lighting Delay" to 90. When I turn the car off at night, none of the lights stay on except for the backup lights. I was reading the owners manual and it said the tail lights, headlights, and backup lights should stay on.

I have the headlights set to automatic.

Is there something I'm missing?