What do I need to unscrew in the trunk to change the reverse light in my 01 chevy impala

Tail Lamp Assembly Removal & Installation To Remove:

1. Open the rear compartment.
2. If equipped, disconnect the cargo net.
3. Remove the wingnut and pull back the rear compartment trim panel.
4. Remove the wingnuts from the tail lamp assembly.
5. Remove the tail lamp assembly from the rear body panel.
6. Disconnect the electrical connector from the tail lamp assembly.
7. Remove the tail lamp socket by turning counterclockwise.
8. Remove the side marker lamp socket by turning counterclockwise.

1. Install the side marker lamp socket by turning clockwise.
2. Install the tail lamp socket by turning clockwise.
3. Connect the electrical connector to the tail lamp assembly.
4. Position the tail lamp assembly to the rear body panel.
5. Install and secure the wingnuts that attach the tail lamp assembly to the body panel.
6. Position the rear trim panel to the rear compartment. Install and secure the wingnut.
7. If equipped, connect the cargo net.
8. Close the rear compartment.