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Service bulletin WBI/21-002

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 id11024393
Published by NHTSA2025-10-21
Manufacturer's numberWBI/21-002
Manufacturer's date2025-10-03
Campaign id or software versionCVT
NHTSA componentPOWER TRAIN

NHTSA's summary

CAMPAIGN BULLETIN CVT Warranty Extension In an effort to assure customer satisfaction, demonstrate our confidence in continuously variable transmissions (CVTs), and to address customer concerns including those expressed by customers in a class action, Nissan will extend the warranty coverage on the CVT. The warranty extension includes the CVT assembly and internal CVT components, gaskets, and seals, CVT control valve body, torque converter, cooler kit (if applicable), Automatic Transmission Control Unit (ATCU) and reprogramming of the Transmission Control Module (TCM), on the vehicles listed in this announcement. The warranty is being extended from its original duration of 60 months/60,000 miles to 84 months/84,000 miles (whichever occurs first). Coverage of other vehicle components remains unchanged, and all other terms, conditions, limitations and exclusions of Nissan’s New Vehicle Limited Warranty continue to apply. ***** What Dealers Should Do ***** 1. If an owner contacts a dealer with a CVT concern in an owned or leased vehicle, verify warranty coverage for the specific VIN and then inform the customer of any diagnostic charges. NOTE: Some owners may have opted out of the warranty extension by excluding themselves from the class action settlement, thus it is important to check the VIN for each vehicle to verify coverage. 2. Use the appropriate Technical Service Bulletin (TSB) and/or Electronic Service Manual (ESM) to diagnose the root cause of the customer concern and identify the correct repair to resolve the customer concerns. NOTE: Dealers will need to follow the warranty process and obtain pre-approval using the VCAT tool. Please reference WBI/21-002. Control valves and CVT belt and pulley kits do not require pre-authorization for repairs made under warranty if they are within the dealer’s DCAL limit. 3. CVT warranty coverage can be confirmed using the warranty extensions/customer service initiatives page in Service Comm or DBS National Service History. 4. If the vehicle is no longer covered by a powertrain or parts warranty, provide owners a repair estimate for a test drive, diagnosis, and repair. If an owner requests assistance, be sure to consult goodwill guidelines available in the Assurance Products Resources Manual (APRM) section 2.2 and obtain the necessary approvals before proceeding.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Transmission and driveline

Vehicles listed
NISSAN MAXIMA2016, 2017, 2018
NISSAN MURANO2015, 2016, 2017, 2018

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

Other bulletins for the same vehicles and component
NTB17-039R2024-06-07. Service bulletin. DTC P17F0 OR P17F1 STORED IN THE TCM This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
NTB12-103I2024-06-07. Service bulletin. CVT/TCM CALIBRATION DATA “WRITE” PROCEDURE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB21-094B2024-01-09. Service bulletin. TRANSFER ASSEMBLY SEAL REPLACEMENT FOR AWD FRONT DRIVE SHAFT REMOVAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB17-039Q2024-01-09. Service bulletin. CVT JUDDER AND DTC P17F0 OR P17F1 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
NTB17-003F2024-01-09. Service bulletin. FLUID LEAK CAUSED BY TRANSFER ASSEMBLY RIGHT SIDE DRIVE SHAFT OIL SEAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB17-039P2023-06-07. Service bulletin. CVT JUDDER AND DTC P17F0 OR P17F1 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
NTB12-103H2023-06-07. Service bulletin. CVT/TCM CALIBRATION DATA “WRITE” PROCEDURE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB12-055J2023-04-06. Service bulletin. CLICKING NOISE FROM FRONT OR REAR AXLE DURING TAKE-OFF/ACCELERATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB22-1012022-12-06. Service bulletin. DRIVE SHAFT BOOT SERVICE INFORMATION SERVICE INFORMATION If a Drive Shaft (Axle Shaft) Boot on an APPLIED VEHICLE is found to be leaking grease, AND There is no abnormal noise or obvious CV Joint risk due to water intrusion and/or complete grease loss, check for REPAIR KIT-DUST BOOT (CV Joint Boot Kit) availability. • If there is a REPAIR KIT-DUST BOOT (CV Joint Boot Kit) available for the vehicle being repaired, do NOT replace the axle. Install a new boot kit following the procedure in the ESM. o Refer to the ESM: TRANSMISSION & DRIVELINE > FRONT AXLE > REMOVAL AND INSTALLATION > FRONT DRIVE SHAFT BOOT o If the complete axle (drive shaft) is replaced when only a new boot is required, the over-repair may be charged back to the dealer. • If there is NOT a REPAIR KIT-DUST BOOT (CV Joint Boot Kit) available for the vehicle being repaired, refer to the ESM for further diagnostic information. IMPORTANT: When servicing vehicles with staked axle nuts, refer to NTB21-013 to prevent Drive Shaft thread damage.
NTB10-029I2022-12-06. Service bulletin. ABNORMAL NOISE, VIBRATION AND/OR BINDING FEELING FROM REAR DIFFERENTIAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.