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Service bulletins for the 2020 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.

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

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Only bulletins with component: Engine are shown. Show all

Bulletins, newest first
NTB25-0052025-01-30. Service bulletin. ENGINE. SERVICE INFORMATION If one of the APPLIED VEHICLES has DTC P2100 for “ETC MOT PWR-B1” or P2101 for “ETC FNCTN/CIRC-B1” stored in the Engine Control Module (ECM) with a customer complaint of loss of power, • Perform the revised Electronic Service Manual (ESM) procedure noted on page 2 for "PERFORM DTC CONFIRMATION PROCEDURE." HINT: This revised procedure will be added to the ESM in a future update.
NTB24-0452024-09-10. Service bulletin. ENGINE. ENGINE SUPPORT TOOLS APPLIED VEHICLES: 2020-2024 Sentra (B18) SERVICE INFORMATION A new Engine Support Bracket is now available to allow the CVT to be removed from the APPLIED VEHICLES without having to remove the engine. The procedure in this bulletin is different from the procedure currently in the ESM, which will be updated with this information at a later date. Please refer to the SERVICE PROCEDURE in this bulletin for information on how to use these new tools.
NTB22-0962022-11-12. Service bulletin. ENGINE AND ENGINE COOLING. LOSS OF POWER, ENGINE NOISE, AND/OR BATTERY LIGHT ON IF YOU CONFIRM The customer describes one, or more, of the following: • Loss of power • Loud noise from the front of vehicle/engine area while running • The battery light is ON AND • It is confirmed that the noise is coming from the generator (alternator) ACTION Replace the Drive Belt Auto Tensioner, the Alternator, and the associated Drive Belt listed in the PARTS INFORMATION on the last page.
NTB22-067A2022-11-07. Service bulletin. ENGINE AND ENGINE COOLING. MIL ON WITH DTC P0401 AND/OR P0404 STORED IN THE ECM This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB22-0672022-08-24. Service bulletin. ENGINE AND ENGINE COOLING. MIL ON WITH DTC P0401 AND/OR P0404 STORED IN THE ECM IF YOU CONFIRM The MIL is ON and DTC P0401 (EGR A FLOW INSUFFICIENT) and/or P0404 (EGR A CONTROL) is stored in the ECM. AND There are no drivability concerns. ACTION 1. Confirm the current ECM part number. 2. Reprogram the ECM, if applicable.
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.
NTB17-082E2022-03-12. Service bulletin. FUEL SYSTEM, OTHER; ENGINE AND ENGINE COOLING. DTC P0456 CAUSED BY EVAP LEAK AT VENT CONTROL VALVE O-RING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB13-097J2022-03-12. Service bulletin. FUEL SYSTEM, OTHER; ENGINE AND ENGINE COOLING. EVAP LEAK DTC P0442, P0455, P0456 INFORMATION This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB21-0272021-05-08. Service bulletin. ENGINE AND ENGINE COOLING. MIL ON WITH DTC P062F AND/OR P0603 STORED IF YOU CONFIRM The MIL is ON and DTC P062F (EEPROM) and/or P0603 (ECM BACK UP/CIRCUIT) is stored, And The customer stated the vehicle was recently started after sitting for an extended period of time (i.e., the battery voltage was low while attempting to start the engine). ACTION 1. Test the vehicle’s 12 volt battery using the Midtronics DSS-5000. Recharge or replace the battery if necessary. 2. Erase all DTCs.
NTB20-0842020-12-09. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ELECTRICAL SYSTEM; EQUIPMENT. INTELLIGENT KEY UNIT DTC P161D STORED IN THE ECM SERVICE INFORMATION DTC P161D (IMMOBILIZER) will not cause: • The MIL to turn ON. • The Remote Engine Start to become inoperative. • The “No Key Detected” message to appear. • An impact to any of the vehicle’s functions or performance. If other DTCs are stored with P161D, perform the diagnosis and repair procedures, outlined in the ESM, for the other DTCs first. • After the other DTCs have been resolved and P161D does not clear, proceed with the diagnosis and repair, outlined in the ESM, for DTC P161D.
NTB20-0552020-08-09. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM; POWER TRAIN:AUTOMATIC TRANSMISSION. 2020 SENTRA; A/T SHIFT LOCK AND REMOTE START INOPERATIVE WITH NEW BCM SERVICE PART SERVICE INFORMATION After installing a new BCM service part, if the Intelligent Key UNLOCK button is pressed before performing the configuration with CONSULT-III plus, certain BCM configuration parameters will be permanently locked in the default setting; one of these parameters is Remote Engine Start (RES). • The default setting for Remote Engine Start is WITHOUT. • The RES function WILL BE permanently disabled if the UNLOCK button is pressed BEFORE the BCM service part is configured. IMPORTANT: To avoid permanently disabling the RES feature after replacing the BCM, the configuration procedure must be performed first so that all of the vehicle features operate correctly. Avoid pressing the UNLOCK button on the Intelligent Key after a BCM replacement. Wait until the configuration process has completed and the default configuration has been overwritten with the correct data before pressing any Intelligent Key buttons. Things to remember when replacing a BCM: • It is not necessary to register Intelligent Keys to a new BCM. • Never press the UNLOCK button on the Intelligent Key until the configuration settings step has been completed. • Complete the configuration of the BCM either manually, or by downloading saved configuration from the previous BCM (stored in CONSULT-III plus).
NTB20-004a2020-07-10. Service bulletin. ENGINE; EQUIPMENT. 2020 SENTRA; REMOTE ENGINE START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB20-0322020-05-06. Service bulletin. ENGINE AND ENGINE COOLING. 2020 SENTRA; REMOTE ENGINE START STOPS RESPONDING AND DTC P161F STORED SERVICE INFORMATION The remote engine start (RES) may stop responding and DTC P161F will store in the ECM if RES is performed more than once in quick succession. EXAMPLE: 1. The RES is activated, 2. The ignition is turned OFF; either by RES timer or directly by the start button or key, 3. Within 10 seconds of performing steps 1 and 2, the ignition is turned ON with the RES, start button or key. - When using the RES feature, at least 10 seconds, or more, must elapse between ignition cycles. - If DTC P161F is stored, erase the DTC and Do Not replace the ECM. NOTE: If a customer states the RES stopped responding on a third consecutive activation attempt, please inform them the vehicle allows the RES to be performed only twice consecutively, and must be driven in excess of 5 mph before a third attempt can be performed.
NTB20-0042020-03-07. Service bulletin. ENGINE; ELECTRICAL SYSTEM:STARTER ASSEMBLY. 2020 SENTRA; REMOTE ENGINE START SERVICE INFORMATION To use the Remote Engine Start (RES), the following conditions must be met: • - The ignition is OFF. • - The RES feature is ON in the vehicle settings (access through the vehicle information display). • - The shift selector is in the “P” (park) position. • - The hood, doors and trunk lid are closed. • - The hazard warning lights are OFF. • - The Intelligent Key is within 197 feet (60 m) of the vehicle, and there are no obstructions between the Intelligent Key and the vehicle. • - The vehicle is already locked (this must be done using the Intelligent Key or the request switch on the exterior door handle). If the conditions above are met, perform the following to use RES: 1. Point the Intelligent Key at the vehicle. 2. Press the lock button. IMPORTANT: The doors must already be locked prior to starting the RES sequence. Refer to the last bullet point in the conditions list above. 3. Within two (2) seconds of pressing the lock button, press and hold the RES button until the turn signal lights flash and the parking lights turn ON. HINT: When RES is performed, the engine should start, the parking lights should remain ON and the doors should remain locked while the engine is running. If this does not occur, use the Supplemental Diagnosis Table on the next page, in addition to the ESM. • - Additional information about RES can be found in the owner’s manual in the Pre-driving checks and adjustments section.

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