How does one make the dome lights brighter in a 2010 Cadillac DTS?

To make the dome lights brighter in a 2010 Cadillac DTS, you can adjust the brightness using the instrument panel dimmer switch. This switch is typically located on the dashboard, near the headlight control. Turning the dimmer switch clockwise increases the brightness of the dome lights. Additionally, ensure that the bulbs are in good condition, as dim lighting can also be a result of burnt-out bulbs.