Tail Light Assembly

Remove and replace the tail light assembly on a 2007 Ram 3500 to restore proper lighting function and visibility.

Warnings

Tools required

Parts

• Tail light assembly × 1 — Use OEM specification for 2007 Ram 3500

Preparation

1. Park the vehicle on a level surface and engage the parking brake
2. Disconnect the negative battery terminal and wait 2 minutes for electrical system discharge
3. Open the tailgate or rear access doors for better working access
4. Identify which tail light assembly needs replacement (driver or passenger side)

Procedure

1. 1

   Access the tail light mounting area
   Open the tailgate fully for better access. On this model the tail light assembly is retained by two screws accessed from the inner bed sidewall area behind the assembly; verify the fastener locations on your specific vehicle before proceeding.
2. 2

   Remove the tail light mounting bolts
   Locate the two mounting screws securing the tail light assembly to the body, accessed from the inner bed sidewall behind the assembly. Remove both screws using the appropriate driver (commonly Phillips or Torx on this model). Keep the fasteners in a safe place for reinstallation.
3. 3

   Release the tail light assembly
   Gently pull the tail light assembly straight back away from the body. The assembly is held by the two mounting screws and alignment pins. If the assembly is stuck, use a flathead screwdriver wrapped in a cloth to carefully pry at the edges, being careful not to damage the paint or lens.
4. 4

   Disconnect the electrical connector
   Once the assembly is pulled away from the body about 2-3 inches, reach behind it to access the electrical connector. Press the release tab on the connector and pull it straight off the tail light socket assembly. Support the tail light to prevent it from falling once disconnected.
5. 5

   Remove the old tail light assembly
   With the electrical connector disconnected, completely remove the tail light assembly from the vehicle. Inspect the mounting area on the body for any corrosion, damage, or debris that should be cleaned before installing the new assembly.
6. 6

   Prepare the new tail light assembly
   Remove the new tail light assembly from its packaging. Inspect it for any shipping damage. Verify that all bulb sockets are present and that any seals or gaskets are properly positioned on the back of the assembly.
7. 7

   Connect the electrical connector
   Position the new tail light assembly near its mounting location. Connect the electrical connector to the back of the new assembly, ensuring it clicks securely into place. Give it a gentle tug to verify a proper connection.
8. 8

   Install the new tail light assembly
   Align the tail light assembly with the mounting holes and alignment pins in the body. Push the assembly firmly into place, ensuring it sits flush against the body. The rubber seal should compress evenly around the perimeter.
9. 9

   Install mounting bolts
   Thread both mounting screws by hand first to ensure proper thread engagement. Once both are started, tighten them using the appropriate driver. Tighten firmly but do not over-torque, as this can crack the plastic mounting tabs on the assembly.
10. 10

    Reconnect battery and test
    Reconnect the negative battery terminal. Turn on the ignition and test all tail light functions integrated in this housing: running/tail lights, brake lights, turn signals, and reverse lights (shift to reverse with the parking brake set to verify reverse lamps). Have an assistant observe the lights or use a reflective surface to verify all functions work properly.

Reassembly

1. Ensure the tail light assembly is seated flush with no gaps that could allow water intrusion
2. Close the tailgate and verify it does not interfere with the tail light assembly
3. Check that all electrical functions work before returning the vehicle to service

Verification

• Verify all lighting functions operate correctly: running lights, brake lights, turn signals, and reverse lights
• Inspect the tail light assembly to ensure it is properly seated with no gaps around the perimeter
• Check for any moisture or condensation inside the lens after a few days of operation
• Confirm that the assembly is secure with no rattling or movement when the tailgate is closed

Related trouble codes on this vehicle

Codes that commonly send this job to the bay — tap one for symptoms, causes, and diagnostic steps.

Chasing one of these codes and not sure which part is guilty? Ask a master mechanic about YOUR car →

More procedures for this vehicle