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Service bulletin PC421

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10090648
Published by NHTSA2017-02-07
Manufacturer's numberPC421
Manufacturer's date2016-06-14
NHTSA componentEQUIPMENT:APPLIANCE:AIR CONDITIONER

NHTSA's summary

NISSAN IS CONDUCTING A VOLUNTARY SERVICE CAMPAIGN ON APPROXIMATELY 39,968 MY 2013-15 NISSAN SGRADE LEAF VEHICLES SOLD IN THE UNITED STATES, CANADA, GUAM, AND PUERTO RICO TO REPLACE THE AIR CONDITIONING (A/C) SYSTEM LINE AND REMOVE A BRACKET. THIS ACTION IS BEING TAKEN TO PREVENT DAMAGE TO THE A/C LINE NEAR THE CONNECTION BETWEEN THE LINE ASSEMBLY AND CONDENSER FROM ELECTRIC MOTOR MOVEMENT, WHICH COULD RESULT IN REFRIGERANT LEAKAGE AND POOR AIR CONDITIONING SYSTEM PERFORMANCE. THE NEW PARTS AND BRACKET REMOVAL WILL ALLOW FOR ADDITIONAL FLEX IN THE A/C LINE DURING ELECTRIC MOTOR MOVEMENT.

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Equipment and accessories, Heating and air conditioning

Vehicles listed
NISSAN LEAF2013, 2014, 2015

Listing a model year does not mean every vehicle of it is concerned: the document says which.

Recalls for the same vehicles and component
23V2960002023-04-26. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; VISIBILITY:DEFROSTER/DEFOGGER/HVAC SYSTEM
20232252023-04-03. Heater And Defroster

A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.

Other bulletins for the same vehicles and component
NTB11-088D2023-09-08. Service bulletin. AV CONTROL UNIT EXCHANGE AND MAP SD CARD REPLACEMENT 8This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB14-084C2021-05-24. Service bulletin. 2-Sensor occupant classification System Diagnostics and Information
PC421OL2021-05-10. Service bulletin. Nissan is conducting this voluntary service campaign on certain specific 2013 ? 2015 LEAF vehicles to replace the high pressure pipe and the high pressure flexible hose for the AC system.
NTB11027B2021-05-10. Service bulletin. SERVICE INFORMATION Temporary tire Flat Spotting is common on New Dealer In-Stock vehicles that have not been occasionally moved. Flat Spotting can occur after the vehicle has been parked (not moved) for a few days, or longer. In most cases it is temporary. In extreme cases it can be permanent. Vehicles should be moved every 30 days, in one direction only, enough to rotate the tires 90° (see Figure 1). Moving vehicles as shown will prevent tire Flat Spotting. See this bulletin for further detail.
NTB160502021-05-10. Service bulletin. INTRODUCTION Nissan is conducting this voluntary service campaign on certain specific 2013 2015 LEAF vehicles to replace the high pressure pipe and the high pressure flexible hose for the AC system. This service will be performed at no charge for parts or labor. IDENTIFICATION NUMBER Nissan has assigned identification number PC421 to this campaign. This number must appear on all communications and documentation of any nature dealing with this campaign. See this bulletin for further detail.
NTB09099A2021-05-10. Service bulletin. IF YOU CONFIRM A refrigerant leak at a refrigerant pipe/hose joint location. ACTIONS 1. Inspect the metal surfaces of the pipe/hose joint for damage or contamination. NOTE: Do not replace a refrigerant pipe, hose, or other A/C component if an o-ring seal will solve the leak incident, if it should occur. 2. If no damage is found to the joint metal surfaces, replace the O-ring seal. See this bulletin for further detail.
NTB09131B2021-05-10. Service bulletin. SERVICE INFORMATION Because of collision damage or other vehicle repair, a replacement "Certification Label" or "VIN Plate / Label" may be needed. These items may be available from Nissan by request if certain criteria are met. This bulletin lists the criteria and provides an application form for such replacements. See this bulletin for further detail.
NTB10135F2021-05-10. Service bulletin. SERVICE INFORMATION This bulletin contains important service procedures that must be performed in order to set-up and maintain the Nissan LEAF Telematics system. Sections: Turning ON the TCU During PDI When a TCU Needs To Be Replaced After A/V Control Unit Replacement - Enter "NissanConnect EV" User ID and Password See this bulletin for more detail. NOTE: Detailed Telematics system information outside the scope of this bulletin can be found in the AV section of the Electronic Service Manual (ESM).
NTB151002021-05-10. Service bulletin. IF YOU CONFIRM DTC P18A5 (AUTO P CANCELLATION) is stored as CURRENT, and will not erase. NOTE: This DTC can be set during manufacture and will not reoccur once cleared. This DTC is not in the Electronic Service Manual (ESM) and no further diagnostic is necessary. ACTION Follow the Service Procedure in this bulletin to erase the DTC. Please see this bulletin for further details.
P53272021-05-10. Service bulletin. Nissan is conducting a Voluntary Service Campaign on Certain 2013-2015 LEAF vehicles to reprogram the Electrically-driven Intelligent Brake Control Unit.