WenmarOpen by Wenmar Pro

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

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

Bulletins, newest first
NTB22-0142022-05-20. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL. 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).
NTB21-063C2022-05-20. Service bulletin. ELECTRICAL SYSTEM; SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE; SERVICE BRAKES, AIR:ANTILOCK:CONTROL UNIT/MODULE. COMBINATION METER MODULES OR ABS CONTROL UNITS CANNOT BE SWAPPED This bulletin has been amended. See AMENDMENT HISTORY, below. Please discard previous versions of this bulletin.
NTB20-029E2022-05-20. Service bulletin. COMMUNICATION:MANUFACTURER TELEMATICS; 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.
NTB21-063B2022-02-10. Service bulletin. ELECTRICAL SYSTEM. COMBINATION METER MODULES OR ABS CONTROL UNITS CANNOT BE SWAPPED This bulletin has been amended. See AMENDMENT HISTORY below. Please discard previous versions of this bulletin.
NTB20-074A2022-02-10. Service bulletin. ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM. BCM SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB20-073B2022-02-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES. INTELLIGENT KEY UNIT SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB20-052B2022-02-10. Service bulletin. ELECTRICAL SYSTEM:BODY CONTROL MODULE/BCM; ELECTRICAL SYSTEM. REAR DOOR ALERT SERVICE INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB19-042C2022-02-10. Service bulletin. ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE. AEB WARNING LIGHT BLINKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB21-063A2022-01-08. Service bulletin. ELECTRICAL SYSTEM. COMBINATION METERS CANNOT BE SWAPPED This bulletin has been amended. See AMENDMENT HISTORY below. Please discard previous versions of this bulletin.
NTB17-045C2022-01-08. Service bulletin. ELECTRICAL SYSTEM. CLEANING FRONT OR REAR COMBINATION LAMP ASSEMBLIES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB21-1062022-01-08. Service bulletin. ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE. DTC C1A17-49 OR C2580-49 STORED IN LASER/RADAR SERVICE INFORMATION If DTC C1A17-49 or C2580-49 is stored in LASER/RADAR in the “PAST” column: • Erase the DTC. • DO NOT replace any parts. If DTC C1A17-49 or C2580-49 is stored in LASER/RADAR in the "CURRENT" column, refer to the applicable ESM for instructions.
NTB21-053B2021-10-16. Service bulletin. ELECTRICAL SYSTEM. NO START DUE TO BATTERY DISCHARGE THROUGH AUDIO UNIT This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB21-0702021-09-10. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. LOCATION OF INTELLIGENT KEYS DURING PDI SERVICE INFORMATION The APPLIED VEHICLES built after August 1, 2021 will arrive at dealerships with the Intelligent Keys concealed under the rear seat. To locate the Intelligent Keys during PDI: • Open the driver’s side (LH) rear door, and then • Raise the corner of the rear seat.
NTB21-066A2021-09-10. Service bulletin. EQUIPMENT:ELECTRICAL:AUX AUDIO JACK/PLUG; 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.
NTB21-053A2021-09-09. Service bulletin. EQUIPMENT:ELECTRICAL:AUX AUDIO JACK/PLUG; ELECTRICAL SYSTEM. 2021 SENTRA; NO START DUE TO BATTERY DISCHARGE THROUGH AUDIO UNIT This bulletin has been superseded by: NTB21-066 VOLUNTARY SERVICE CAMPAIGN 2021 SENTRA; AUDIO CONTROL UNIT REPROGRAM Campaign ID: PM991 Please discard previous versions of this bulletin.
NTB21-037A2021-09-09. Service bulletin. ELECTRICAL SYSTEM; COMMUNICATION:MANUFACTURER TELEMATICS; EQUIPMENT. 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.
PM991 2021 Sentr2021-08-06. Service bulletin. ELECTRICAL SYSTEM. Audio Control Unit Reprogram Voluntary Service Campaign Dealer Announcement: Nissan has reclassified the previously announced quality action (PM984) for new vehicle inventory as a Voluntary Service Campaign to reprogram the Audio Control Unit on 17,171 specific 2021 Sentra vehicles identified in Service Comm and DBS National Service History. Due to a program logic concern, certain vehicles may have been manufactured with an Alliance In-Vehicle Infotainment (AIVI) system software that allows the AIVI system to continue drawing current after the vehicle is shut off. This event may occur when the operator turns off the ignition followed by some operation (i.e. brake pedal pressed, door locked, etc.). These types of sequences causes the AIVI system to “wake up” and the system will not return to “sleep” mode until another ignition on-off cycle occurs. If this event occurs, the customer may experience a discharged battery and if the vehicle is not restarted within 46 hours, the battery may completely discharge resulting in a no start condition. Affected vehicles are not subject to stop sale and are either currently in dealer inventory or assigned and in transit to the dealer. What Dealers Should Do: 1.Verify if vehicles are affected by this Voluntary Service Campaign using Service Comm or DBS National Service History – Open Campaigns I.D. PM991. 2.Dealers are requested to remedy any affected vehicles in dealer new or pre-owned inventory to ensure customer satisfaction. •New vehicles in dealer inventory can also be identified using DBS (Sales-> Vehicle Inventory, and filter by Open Campaign). •Refer to NPSB15-460 for additional information 3.Dealers should use NTB21-066 to correct any vehicles subject to this campaign.
NTB21-0672021-08-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT. HIGH FREQUENCY NOISE WITH AUDIO SYSTEM DISPLAY ON IF YOU CONFIRM There is a high frequency (17 kHz) noise with the audio system display screen turned ON, NOTE: • The 17kHz range may not be audible to some people. • Noise can be heard with the audio system ON or OFF. AND The high frequency noise is not heard with the audio system display screen turned OFF, AND Service Comm does not show PM991 applies to the vehicle you are working on. HINT: If Service Comm shows PM991 does apply to the vehicle you are working on, perform PM991 and do not apply this bulletin. ACTION 1. Confirm the current Audio Control Unit software version is 321 or 420. 2. Update the Audio Control Unit software version to 423.
NTB21-0662021-08-06. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM. VOLUNTARY SERVICE CAMPAIGN 2021 SENTRA; AUDIO CONTROL UNIT REPROGRAM INTRODUCTION Nissan is conducting this voluntary service campaign, on certain specific model year 2021 Sentra SV and SR vehicles, to reprogram the Audio Control Unit. This service will be performed at no charge to the customer for parts or labor. IDENTIFICATION NUMBER Nissan has assigned identification number PM991 to this campaign. This number must appear on all communication and documentation of any nature dealing with this campaign. DEALER RESPONSIBILITY Dealers are to repair vehicles falling within range of this campaign that enter the service department. This includes vehicles purchased from private parties, vehicles presented by transient (tourists) owners, and vehicles in a dealer’s inventory.
NTB21-0632021-08-06. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER:SENSOR/SENDING UNIT. COMBINATION METERS CANNOT BE SWAPPED SERVICE INFORMATION Do not swap combination meter modules between vehicles for any reason in the APPLIED VEHICLES. Due to a new electrical architecture, the vehicle mileage is now stored in multiple control modules. When a mileage difference is detected between modules, the module with the lower value will be immediately overwritten, replacing it with the higher mileage. If a new combination meter module is installed, it will automatically be overwritten to the correct vehicle mileage.
NTB21-042A2021-08-06. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); EQUIPMENT. VOLUNTARY SERVICE CAMPAIGN 2021 SENTRA; SIDE RADAR SENSOR This bulletin has been amended. See AMENDMENT HISTORY on the last page. Discard all previous versions of this bulletin.
PM984 2021 Sentr2021-07-12. Service bulletin. ELECTRICAL SYSTEM. Audio Control Unit Reprogram Dealer Inventory *****Dealer Announcement***** Nissan is conducting a quality action to reprogram the Advanced In Vehicle Infotainment (AIVI) control unit with updated software on 6,519 specific model year 2021 Nissan Sentra vehicles. Due to a program logic concern, the audio system does not sleep after receiving a message to ‘Go to Sleep’ from the Body Control Module (BCM). As a result, the standby current becomes high causing the battery capacity to be gradually discharged, which may result in the customer unable to start the vehicle. Affected vehicles are subject to stop sale and are either currently in dealer inventory or assigned and in transit to the dealer. *****What Dealers Should Do***** PLEASE FOLLOW THE ATTACHED INSPECTION INSTRUCTIONS: 1. Verify if vehicles are affected by this quality action using Service Comm or DBS National Service History – Open Campaigns I.D. PM984 • New vehicles in dealer inventory can also be identified using DBS (Sales-> Vehicle Inventory, and filter by Open Campaign). • Refer to NPSB 15-460 for additional information • Please continue to check newly arriving inventory for campaign applicability. 2. Please do not drive, loan, sell or trade the specific vehicles in dealer inventory subject to this quality action. 3. Dealer must use the attached procedure to update the software for any vehicles affected by this quality action. 4. The service department should submit the applicable warranty claim for the action performed to close the campaign on Service Comm and release the vehicle.
NTB21-0532021-07-12. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. 2021 SENTRA; NO START DUE TO BATTERY DISCHARGE THROUGH AUDIO UNIT IF YOU CONFIRM The customer states that the engine would not crank, or cranked slowly and would not start. ACTION 1. Test the vehicle's 12 volt battery using the Midtronics DSS-5000 and recharge, or replace, the battery if necessary. 2. Confirm the current audio head unit software is version 321. 3. If the version is 321, update the audio head unit software to version 420.
NTB17-118B2021-07-12. Service bulletin. ELECTRICAL SYSTEM. NISSAN; INTELLIGENT KEY IDENTIFICATION AND REGISTRATION TIPS This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB16-028D2021-07-10. Service bulletin. ELECTRICAL SYSTEM. INTELLIGENT KEY BUTTONS INOPERATIVE BUT REQUEST SWITCHES WORK 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.