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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.

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Only bulletins with component: Electrical system are shown. Show all

Bulletins, newest first
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.
NTB22-028B2023-04-10. 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.
NTB21-063D2023-04-10. Service bulletin. ELECTRICAL SYSTEM. COMBINATION METER MODULES OR ABS CONTROL UNITS CANNOT BE SWAPPED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB22-051A2023-03-07. Service bulletin. ELECTRICAL SYSTEM. HORN INOPERATIVE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB22-037A2023-02-07. Service bulletin. ELECTRICAL SYSTEM. INTELLIGENT KEY NOT DETECTED IN CENTER CONSOLE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB22-027A2023-02-07. Service bulletin. ELECTRICAL SYSTEM. DTC B2E01-96 (INTERNAL BATTERY) STORED AS CURRENT IN IVC This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB22-014A2023-02-07. Service bulletin. ELECTRICAL SYSTEM:IGNITION:ANTI-THEFT:IMMOBILIZER/PROXIMITY:KEY/SENDER; ELECTRICAL SYSTEM. INTELLIGENT KEY NOT DETECTED IN CENTER CONSOLE This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB20-085B2023-02-07. Service bulletin. COMMUNICATION:MANUFACTURER TELEMATICS; ELECTRICAL SYSTEM; UNKNOWN OR OTHER. TELEMATICS CONTROL UNIT RESET AFTER AUTOMATIC COLLISION NOTIFICATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB21-037B2023-01-10. Service bulletin. ELECTRICAL SYSTEM. DTCS B2E4B-06, B2E60-06, B2E61-06 STORED IN THE TCU This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB20-029F2022-11-12. Service bulletin. ELECTRICAL SYSTEM. TELEMATICS (IVC) SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
NTB22-0942022-11-07. Service bulletin. ELECTRICAL SYSTEM. DTC P161D STORED IN BCM IF YOU CONFIRM DTC P161D (Immobilizer) is stored in the BCM,. • If a DTC other than P161D is present, diagnose and resolve first before applying this bulletin. AND The current ECU PART NUMBER in the BCM is either 284B3-3613R or 284B3-6580R. ACTION Reprogram the BCM with the SERVICE PROCEDURE in this bulletin.
NTB22-0882022-10-14. Service bulletin. FORWARD COLLISION AVOIDANCE; ELECTRICAL SYSTEM; LANE DEPARTURE. LANE CAMERA OVER TEMPERATURE DTC STORED SERVICE INFORMATION The Lane Camera can become overheated if the interior room temperature or temperature around the camera becomes excessively high, and does not initially indicate a sustained fault. If overheated, the Lane Camera should be cooled to outside ambient temperature, any stored DTCs erased, and then allowed to resume operation. Refer to the ESM for any DTCs that will not erase. This condition may cause the following system functions to be suspended: • Vehicle-to-vehicle distance control mode (ICC - Intelligent Cruise Control) • Conventional (fixed speed) cruise control mode • Steering wheel assistance function • AEB (Automatic Emergency Braking) • LDW (Lane Departure Warning) • I-LI (Intelligent Lane Intervention) • Blind Spot Intervention • TSR (Traffic Sign Recognition) AND Can store one or more of the following DTCs as PAST or CURRENT: • C2501-4B (Front camera unit) • C1F05-4B (Front camera unit) • C1F6B-4B (Front camera unit) For customer information, see Talk Tip "Customer" statement on page 3.
NTB22-028A2022-09-17. 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.
REVISION 2 PM9912022-08-31. Service bulletin. ELECTRICAL SYSTEM. Audio Control Unit Reprogram Voluntary Service Campaign UPDATE August 25, 2022 Please discard earlier versions of this bulletin. The announcement from August 10, 2021 has been revised to include the following: • NTB21-066 has been amended with the following changes: • Battery replacement will no longer be covered under this activity. The battery inspection and replacement operation has been removed from this campaign. Op codes PM9914 and PM9913 no longer apply for this activity. • USB drive information has been updated.
NTB22-0372022-08-31. Service bulletin. ELECTRICAL SYSTEM. INTELLIGENT KEY NOT DETECTED IN CENTER CONSOLE IF YOU CONFIRM The Intelligent Key fob is not detected when above or around the center console area. ACTION Use the SERVICE PROCEDURE in the bulletin to reconfigure the Hands Free Module (HFM).
NTB21-066B2022-08-30. Service bulletin. ELECTRICAL SYSTEM. VOLUNTARY SERVICE CAMPAIGN 2021 SENTRA; AUDIO CONTROL UNIT REPROGRAM This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB22-0512022-08-26. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:HORN. HORN INOPERATIVE IF YOU CONFIRM The horn on an APPLIED VEHICLE is inoperative. ACTION Inspect the horn pad for a pinched ground wire. If a pinched ground wire is found, replace the high and low horns.
NTB22-0282022-06-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. SOFTWARE UPDATE FOR INFOTAINMENT ISSUES SERVICE INFORMATION IMPORTANT: • For Sentra, if Service Comm shows that PM991 applies to the vehicle you are working on, perform PM991 and do not apply this bulletin. • Refer to NTB21-038 to verify if the customer concern is a Hardware or Software related issue. This bulletin does not apply to hardware issues. The software update in the following SERVICE PROCEDURE is to address the items below: • Stability improvements and "bug" fixes • High Frequency noise with audio system display ON Refer to steps 1 - 5 starting on page 3 to confirm that this bulletin applies.
NTB22-0272022-06-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; COMMUNICATION:MANUFACTURER TELEMATICS; ENGINE. B2E01-96 (INTERNAL BATTERY) DTC STORED AS CURRENT IN IVC SERVICE INFORMATION CONSULT has been updated to allow DTC B2E01-96 (Internal battery) to be cleared in the Telematics Control Unit (TCU). If DTC B2E01-96 is Current/Active in the TCU, and No additional Current/Active DTCs are present in the TCU, perform the SERVICE PROCEURE starting on page 2.
NTB22-0262022-06-08. Service bulletin. ELECTRICAL SYSTEM:INSTRUMENT PANEL:FUEL GAUGE:FUEL LEVEL FLOAT/SENSOR/SENDING UNIT; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM):SOFTWARE; FUEL SYSTEM, DIESEL; FUEL SYSTEM, GASOLINE. SERVICE INFORMATION FOR FUEL GAUGE INACCURATE WITH DTCS STORED IN ECM SERVICE INFORMATION If a fuel level sensor has been diagnosed as sending an incorrect level signal, and one or more of the following DTCs are stored in the ECM, do not replace the entire “Fuel Level Sensor Unit, Fuel Filter and Fuel Pump Assembly” (fuel pump assembly). The fuel level sensor can be replaced separately. • P0460 (FUEL LEV SEN SLOSH) • P0461 (FUEL LEVEL SENSOR) • P0462 (FUEL LEVL SEN/CIRC) • P0463 (FUEL LEVL SEN/CIRC) NOTE: Warranty claims referring to fuel level issues that result in the replacement of the entire fuel pump assembly will be charged back.
NTB20-085A2022-06-08. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. TELEMATICS CONTROL UNIT RESET AFTER AUTOMATIC COLLISION NOTIFICATION 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.