When you say seat belt latch, I assume you are referring to the buckle. They are pretty interchangeable terms but I just want to make sure I provided what you are looking for. Here is the complete procedure. Please make sure you read through the entirety of the documents because the SRS or airbag system is involved and I don't want to inadvertently activate the system.
Please let me know if you have questions and we can go from there. Thanks
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.