2021-2024 Nissan Intelligent Key Unit Service TSB

Nissan has issued Technical Service Bulletin (TSB) NTB20-073C to provide updated service information for replacing the Intelligent Key unit in several of its 2021-2024 models. This bulletin outlines critical steps that technicians must follow to ensure the proper function and longevity of the new Intelligent Key unit. Owners of affected vehicles should be aware of these procedures, especially if they experience issues requiring a replacement.

This TSB is specifically for the proper procedure when performing a Nissan Intelligent Key unit service. It highlights key steps to prevent potential damage and ensure the system operates correctly after replacement.

Important Warning

Nissan explicitly states a critical warning for technicians performing this service:

"To prevent damage to the Intelligent Key unit, perform module configuration BEFORE NATS initialization."

This means that the module configuration must be completed before the Nissan Anti-Theft System (NATS) initialization (key registration) process begins. Once NATS initialization is performed, certain configuration settings become locked and cannot be changed, making the correct sequence vital for a successful Nissan Intelligent Key unit service.

Service Information Summary

When replacing the Intelligent Key unit, which is also referred to as the hands-free module, it is imperative to always replace it with a new one. The TSB stresses that module configuration must be performed before NATS initialization. This sequence is crucial because, once NATS initialization is complete, specific configuration parameters are locked and cannot be modified.

Technicians are instructed to follow the detailed work procedure outlined in the Electronic Service Manual (ESM) when replacing the Intelligent Key unit. The TSB provides specific navigation paths within the ESM to guide technicians to the correct instructions for different vehicle models.

ESM Navigation for Intelligent Key Unit Replacement

For ARIYA, Pathfinder, and Rogue models, technicians should navigate the ESM as follows:

• BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY > DOOR & LOCK > BASIC INSPECTION > ADDITIONAL SERVICE WHEN REPLACING INTELLIGENT KEY UNIT

For Sentra models, the navigation path is slightly different:

• BODY EXTERIOR, DOORS, ROOF & VEHICLE SECURITY > DOOR & LOCK > BASIC INSPECTION > INTELLIGENT KEY UNIT > ADDITIONAL SERVICE WHEN REPLACING INTELLIGENT KEY UNIT

These detailed instructions ensure that all necessary steps are followed precisely, minimizing the risk of errors during the Nissan Intelligent Key unit service.

Bulletin Amendment History

This TSB has undergone several revisions since its original publication, reflecting updates to the information and applicable vehicles:

• October 14, 2020 (NTB20-073): Original bulletin published.
• January 28, 2021 (NTB20-073a): Classification number updated.
• January 26, 2022 (NTB20-073B): APPLIED VEHICLES list revised.
• May 20, 2024 (NTB20-073C): APPLIED VEHICLES list revised again.

What This Means for Owners

While this TSB is primarily for technicians, it provides valuable insight for owners of 2021-2024 Nissan Ariya, Pathfinder, Rogue, and Sentra vehicles. If your vehicle requires an Intelligent Key unit replacement, understanding this bulletin can help ensure that your service center follows the correct procedures. The emphasis on pre-NATS initialization configuration is vital for the proper functioning of your vehicle's security and keyless entry systems. Always ensure that any Nissan Intelligent Key unit service is performed by qualified technicians who are familiar with the latest service bulletins.

NHTSA ID: 11004966