Service bulletin NTB20-037

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)
Type	Service bulletin
NHTSA id	10176250
Published by NHTSA	2020-06-10
Manufacturer's number	NTB20-037
Manufacturer's date	2020-05-19
NHTSA component	POWER TRAIN

NHTSA's summary

2018-2019 SENTRA, VERSA SEDAN, AND VERSA NOTE; ENHANCED DIAGNOSTIC LOGIC FOR CVT IF YOU CONFIRM The customer reports a transmission judder (shake, shudder, single or multiple bumps or vibration), hesitation on acceleration, lack of power, or RPM flare. NOTE: • A new diagnostic logic has been established to enhance the diagnostic process by storing a diagnostic trouble code (DTC) on Applied Vehicles. • New DTCs: P17F0, P17F1, P17F2, P17F3, P17F4 will not turn the MIL ON. • New DTC P0868 will turn the MIL ON. • This new diagnostic logic will monitor conditions in the CVT while the customer is operating their vehicle in their usual daily drive patterns. • If any of the above DTCs are stored, refer to NTB20-035 (Sentra) or NTB20-036 (Versa Sedan and Versa Note) for repair information. ACTION 1. Confirm the current TCM part number. 2. Reprogram the TCM, if applicable

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

Trouble codes named

P0868, P17F0, P17F1, P17F2, P17F3, P17F4

Vehicles listed
NISSAN SENTRA	2018, 2019
NISSAN VERSA	2018, 2019
NISSAN VERSA NOTE	2018, 2019

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
NTB12-103I	2024-06-07. 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.
REV1 Altima_Sent	2023-12-08. Service bulletin. CVT Warranty Extension REVISION 1 Please discard earlier versions of this bulletin. The announcement from May 23, 2023 has been revised to include the following: • The voucher program has been updated and the program rules and dealer instructions have been added to the FAQ section of this dealer announcement.
NTB12-103H	2023-06-07. 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.
Altima_Sentra_Ve	2023-05-24. Service 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 the class actions, 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) 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.
NTB12-055J	2023-04-06. 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.
NTB20-035C	2023-03-07. Service bulletin. 2018-2019 SENTRA; CVT JUDDER This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
Altima_Sentra_Ve	2023-01-10. Service bulletin. CVT Class Action Owner Notification In mid-December, current and former owners and lessees of the following vehicles will receive a postcard from a Settlement Administrator informing them of the terms of a proposed class action that, subject to final court approval, could extend the warranty on the CVT for the following vehicles: 2017-2018 Altima (L33) 2018-2019 Sentra (B17) 2018-2019 Versa Sedan (N17) 2018-2019 Versa Note (E12) The proposed settlement (including the proposed warranty extension) is still subject to final approval by the court presiding over the proposed settlement. The court will determine if the settlement will be approved at or shortly after a hearing that is scheduled for March 20, 2023. To be clear, unless and until the proposed settlement is approved by the presiding court, there is no warranty extension and you should proceed with CVT-related claims as outlined below in #3 under what dealers should do. The proposed settlement, and the associated potential warranty extension, include many terms and conditions. Rather than attempting to address questions about the proposed settlement terms from customers, it is strongly recommended that you refer customers to the website and/or telephone number listed below so that they can receive information from appropriate sources and in order to avoid providing incorrect and/or incomplete information. The telephone number and website should be active by December 15, 2022. *** What Dealers Should Do *** No action is necessary at this time. Nissan will provide additional instructions in late May if and when the proposed settlement is approved and becomes effective. 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.
NTB22-101	2022-12-06. 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.
NTB12-055I	2022-10-07. 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.
NTB20-037A	2022-08-27. Service bulletin. ENHANCED DIAGNOSTIC LOGIC FOR CVT This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.