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Service bulletins for the 2021 Nissan Sentra

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.

132 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
NTB09-081K2024-06-07. Service bulletin. VISIBILITY/WIPER. WINDSHIELD CRACKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB24-0222024-04-06. Service bulletin. POWER TRAIN. CVT SUB-ASSEMBLY SERVICE PARTS ARE NOW AVAILABLE SERVICE INFORMATION The CVT Belt & Pulley (sub-assembly) Kit is now available to order. The sub-assembly kit part numbers and other parts needed, if a repair is indicated, are listed in PARTS INFORMATION. • This bulletin does not include diagnostic or service procedure information. • Refer to the ESM for necessary diagnostic information before performing a CVT repair.
NTB23-018G2024-03-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin is no longer active. To access infotainment software updates via the Infotainment Software Update Utility: Select SPECIALTY TOOLS, and then select Infotainment Software Updates on the left side of ASIST. Please discard previous versions of NTB23-018.
NTB23-018F2024-02-08. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; ELECTRICAL SYSTEM. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin is no longer active. To access infotainment software updates via the Infotainment Software Update Utility: Select SPECIALTY TOOLS, and then select Infotainment Software Updates on the left side of ASIST. HINT: Initially, the Infotainment Software Update Utility will be available only on the CONSULT PC version of ASIST. The Utility will be added to ASIST WEB at a later date. Please discard previous versions of NTB23-018.
NTB21-067B2024-02-08. Service bulletin. ELECTRICAL SYSTEM. HIGH FREQUENCY NOISE WITH AUDIO SYSTEM DISPLAY ON This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB08-097L2023-10-06. Service bulletin. STEERING. DIAGNOSIS OF VEHICLE PULL (DRIFT) AND/OR STEERING WHEEL OFF-CENTER This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB23-018E2023-09-09. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; ELECTRICAL SYSTEM. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB23-018D2023-09-09. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT:SOFTWARE; ELECTRICAL SYSTEM. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB22-051B2023-08-08. Service bulletin. ELECTRICAL SYSTEM:HORN; ELECTRICAL SYSTEM. HORN INOPERATIVE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB21-037C2023-08-08. Service bulletin. ELECTRICAL SYSTEM. DTCS B2E4B-06, B2E60-06, B2E61-06 DISPLAYED AS CRNT IN THE TCU This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB23-0532023-07-11. Service bulletin. ELECTRICAL SYSTEM. SILICONE-BASED LUBRICANT OR GREASE CAN DAMAGE ELECTRICAL COMPONENTS SERVICE INFORMATION Do not apply Silicone-based lubricants or grease to, or around, any interior electrical components. To avoid the risk of death or severe personal injury, do not directly spray Silicone-based lubricant or grease, or inadvertently overspray Silicone-based lubricant or grease onto any interior electrical components. These types of lubricants can be detrimental to the proper operation of electrical components.
NTB23-0492023-07-11. Service bulletin. ELECTRICAL SYSTEM. 12 VOLT BATTERY TESTING FOR IN-SERVICE VEHICLES SERVICE INFORMATION The following Service Information lists NNA procedural recommendations for establishing good connections while performing 12V battery testing. These recommendations are expected to promote uniformity during the connection process, therefore reducing the number of incorrect “Test with DCA” and “Replace” results. HINT: If 12 volt batteries are allowed to discharge for a prolonged period of time, battery life may be drastically reduced. This condition may lead to premature battery replacement and customer dissatisfaction. IMPORTANT: • CPX-900 is now an accepted testing tool to use along with or in place of the DSS-5000 • CPX-900 operating instructions are found at: https://nissancpx900.midtronics.com/ • DSS-5000 operating instructions are found at: https://nissandss5000.midtronics.com/ • DCA-8000 is now a required testing tool to be used for all warranty replacement decisions. The DCA-8000 is also a more efficient charger than previously available, and will charge any available 12 volt lead acid battery safely and accurately as long as all precautions and inputs are made correctly. The DCA-8000 operating instructions are found at: https://nissandca8000.midtronics.com/
NTB23-0302023-05-06. Service bulletin. POWER TRAIN. CVT SHIFT SELECTOR LEVER KNOB REMOVAL AND INSTALLATION SERVICE INFORMATION If the CVT Shift Selector Lever Knob needs to be removed or installed for any reason, refer to the SERVICE PROCEDURE in this bulletin, beginning on page 2.
NTB23-018C2023-05-06. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB20-016F2023-05-05. Service bulletin. ELECTRICAL SYSTEM. RADIO INTERMITTENTLY REBOOTS DURING AUDIO PLAYBACK VIA BLUETOOTH CONNECTED IPHONE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB16-003C2023-05-05. Service bulletin. ELECTRICAL SYSTEM. INTELLIGENT KEY REPLACEMENT OR SWAPPING BETWEEN VEHICLES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
NTB13-107F2023-05-05. Service bulletin. ELECTRICAL SYSTEM. VEHICLE KEY NOT DETECTED / AUTHENTICATED, ENGINE WILL NOT START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB03-074Q2023-05-05. Service bulletin. EXTERIOR LIGHTING. HEADLAMP, FOG LAMP, OR REAR COMBINATION LAMP FOGGING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB23-018B2023-04-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB23-018A2023-04-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB23-0182023-04-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:INFOTAINMENT. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES SERVICE INFORMATION When diagnosing an infotainment issue or after replacement of the AV Control Unit, it is necessary to verify the current software version of the AV Control Unit to determine if a software version update is required. Use the vehicle tables in this bulletin to determine the current software version, if the AV Control Unit requires a software version update, and which procedure to use to update the AV Control Unit. The software updates in this bulletin are to address stability improvements and “bug” fixes. IMPORTANT: If the customer is experiencing a software related concern, refer to NTB21-038 to verify if the customer concern is a hardware or software related issue. If the concern is a software related issue, review the information in this bulletin to update the AV Control Unit as needed.
NTB22-045A2023-04-10. Service bulletin. SUSPENSION; STEERING; ENGINE AND ENGINE COOLING. RATTLE OR KNOCK NOISE FROM FRONT WHEN DRIVING OVER BUMPS AND/OR TURNING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB22-028B2023-04-10. Service bulletin. EQUIPMENT:ELECTRICAL:INFOTAINMENT; ELECTRICAL SYSTEM. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES This bulletin has been amended. See AMENDMENT HISTORY below. Please discard previous versions of this bulletin.
NTB21-106A2023-04-10. Service bulletin. ELECTRICAL SYSTEM. DTC C1A17-49 OR C2580-49 STORED IN LASER/RADAR This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB21-067A2023-04-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. HIGH FREQUENCY NOISE WITH AUDIO SYSTEM DISPLAY ON This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.