Dodge 2010 Caliber - Manual (Page 431)

2. Grasp the tail lamp and pull firmly to disengage the
lamp from the aperture panel.
NOTE: It is not necessary to completely remove the tail
lamp unit. Once loosened from the quarter panel, there
should be enough room to service any of the bulbs.
3. Disconnect the electrical connector from the bulb.
4. Twist and remove socket from the lamp.
430 MAINTAINING YOUR VEHICLE