For Taillights (Left or Right):
1. Safety First: Park on a level surface, engage the parking brake, and turn off the ignition.
2. Access the Taillight Assembly: Usually, you need to access the taillight assembly from inside the truck bed or through a small access panel in the wheel well. This varies based on trim level. Consult your owner's manual for the exact location and method for your specific truck. You may need to remove some screws or panels.
3. Disconnect the Electrical Connector: Once you have access to the taillight assembly, carefully disconnect the electrical connector. It usually just pulls apart, but be gentle.
4. Remove the Bulb: The bulb is typically held in place by a retaining clip or a twist-lock socket. Depending on the design, you may need to gently twist the bulb to release it or press a retaining clip to free the bulb. Consult your owner's manual for your specific setup. *Don't force anything*.
5. Replace the Bulb: Install the new bulb, ensuring it's seated correctly. Make sure to match the bulb type (refer to your owner's manual or the old bulb).
6. Reconnect and Reassemble: Reconnect the electrical connector and reassemble the taillight assembly.
For the Third Brake Light (CHMSL):
1. Safety First: Same as above.
2. Access the CHMSL: This is typically located on the top of the rear window. You'll likely need to open the rear hatch or tailgate. There might be screws or clips holding the CHMSL assembly in place; your owner's manual will detail this.
3. Disconnect and Replace: Once you have access, disconnect the electrical connector and carefully remove the bulb (similar process as the taillight – twist or push release). Install the new bulb and reassemble.
Important Considerations:
* Bulb Type: Use the correct bulb type. The owner's manual will specify the correct wattage and type (e.g., 1157, 3157). Auto parts stores can help you find the correct replacement.
* Gloves: Wear gloves to avoid getting grease or dirt on the new bulb.
* Photos: Before disassembling anything, take pictures. This can be helpful if you forget how things go back together.
* Owner's Manual: This is your best resource. It contains specific instructions and diagrams for your vehicle.
If you're uncomfortable performing this task, it's always best to take your vehicle to a qualified mechanic. Improperly installed bulbs can lead to electrical problems or safety hazards.
