If your car has Ambient Lighting, there is a setting for low, medium or high intensity under the vehicle settings, My Car\Lights and Lighting\Interior Lighting. My own observation is that the ambient lighting is mostly imperceivable, even when set on high. Even Volvo describes it as, "several LEDs that provide faint lighting in various colors." I believe they're only located on the dash above the glove box (to illuminate the decorative panel facing the passenger), and in the ceiling. I think the floor lighting, which Volvo calls Ground Lighting, only illuminates when the respective door is open, and that it is not part of the Ambient Lighting.