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Service bulletins for the 2021 Nissan Altima

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.

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

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Bulletins, newest first
NTB10-029G2022-05-20. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT; POWER TRAIN. NISSAN AWD MODELS; ABNORMAL NOISE, VIBRATION AND/OR JUDDER FROM REAR DIFFERENTIAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB18-071B2022-03-12. Service bulletin. ELECTRICAL SYSTEM:BODY CONTROL MODULE:SOFTWARE; ELECTRICAL SYSTEM. SECURITY ALARM SOUNDS AFTER USING MECHANICAL KEY TO UNLOCK DRIVER DOOR This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
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.
NTB17-003C2022-03-12. Service bulletin. POWER TRAIN. FLUID LEAK CAUSED BY TRANSFER ASSEMBLY RIGHT SIDE DRIVE SHAFT OIL SEAL 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.
NTB13-027C2022-03-12. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM). CAN COMMUNICATION – NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB21-110A2022-02-10. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM); ENGINE AND ENGINE COOLING. MIL ON WITH DTC P11A7 STORED IN THE ECM This bulletin has been amended to update the Applied Vehicles. No other changes were made. 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.
NTB14-012G2022-02-10. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:IGNITION:MODULE; ELECTRICAL SYSTEM. REMOTE ENGINE START NOT WORKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB99-001F2022-01-08. Service bulletin. SUSPENSION. STRUT AND SHOCK ABSORBER REPLACEMENT GUIDELINES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB21-1102022-01-08. Service bulletin. ELECTRICAL SYSTEM:PROPULSION SYSTEM:TRACTION BATTERY:MANAGEMENT SYSTEM/ENERGY CONTROL MODULE (BMS/BECM):SOFTWARE. MIL ON WITH DTC P11A7 STORED IN THE ECM IF YOU CONFIRM The MIL is ON and DTC P11A7 (VCR STOPPER POSITION) is stored in the ECM. HINT: There may also be a lack of power concern (fail-safe). ACTION 1. Confirm the current ECM part number. 2. Reprogram the ECM, if applicable.
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.
NTB20-076A2022-01-08. Service bulletin. ENGINE AND ENGINE COOLING. NO ENGINE COVER This bulletin has been amended. See AMENDMENT HISTORY below. Please discard previous versions of this bulletin.
NTB21-0942021-12-08. Service bulletin. POWER TRAIN. TRANSFER ASSEMBLY SEAL REPLACEMENT FOR AWD FRONT DRIVE SHAFT REMOVAL SERVICE INFORMATION When removing the front passenger (RH) side drive shaft on an applied vehicle for any reason, transfer assembly drive shaft oil seal and dust cover seal replacement is required. Refer to the SERVICE PROCEDURE in this bulletin.
NTB21-034A2021-09-09. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER; ELECTRICAL SYSTEM. AC INOPERATIVE WITH DTC B20C8-14 STORED IN THE IPDM E/R This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
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.
NTB15-077D2021-07-10. Service bulletin. ELECTRICAL SYSTEM. SIGNAL TECH-II INTELLIGENT KEY BATTERY TEST AND SIGNAL CHECK This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB12-055H2021-07-10. Service bulletin. POWER TRAIN. 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.
NTB17-003B2021-06-11. Service bulletin. POWER TRAIN. FLUID LEAK CAUSED BY TRANSFER ASSEMBLY RIGHT SIDE DRIVE SHAFT SEAL This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
PC800 2021 Altim2021-05-08. Service bulletin. STRUCTURE. Moonroof Inspection Dealer Inventory *****Dealer Announcement***** Nissan is conducting a dealer inventory quality action to inspect the moonroof on 2,048 specific 2021 Altima vehicles identified in Service Comm. The moonroof of subject vehicles may be under-flush to the body causing the potential for water leak or wind noise. The D-ring may be mis-set causing the roof to bow in the center line area. 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. PC800 • 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. Use the attached procedure to inspect vehicles affected by this quality action. • If the inspection results indicate that the moonroof is “Good”, no further action is needed. • File a claim for the inspection, and release the vehicle for sale. • If the inspection results indicate that the moonroof is “No Good”, do not submit a warranty claim, provide the requested information in an email to nnafqasupport@nissan-usa.com and HOLD the vehicle until further notice. • Nissan FQA will review the E-mail submission to confirm and provide the dealer with next steps within 2-business days.
PC789 2021 Altim2021-05-08. Service bulletin. LATCHES/LOCKS/LINKAGES. Center Seat Latch Owner’s Manual Addendum Voluntary Service Campaign Campaign Summary: Nissan is providing owners of approximately 30,733 MY2021 Nissan Altima (L34) vehicles with a supplemental Owner’s Manual addendum booklet. The 2021 Model Year Altima is now rated for Rear Center Seat Latch usage, which was not included in the Owner’s Manual. Customers will be asked to place the supplemental Owner’s Manual addendum booklet, which includes this information, inside the vehicle’s glove box. What Dealers Should Do: 1.Verify if new vehicles in their inventory are affected by this Voluntary Service Campaign using Service Comm or DBS National Service History – Open Campaigns I.D. PC789. •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 •SERVICE COMM will only be active for vehicles in new vehicle dealer inventory. 2.If a dealer receives a supplemental Owner’s Manual addendum booklet for a vehicle they have retailed, currently have in their new vehicle or pre-owned inventory, or a Nissan Rental Car (NRC), the dealer should either forward the owner’s manual addendum to the current owner or add the addendum to the glove box of any affected vehicle they currently control. 3.Customers receiving this addendum booklet have been advised to insert this booklet into their glove box.
NTB21-0342021-05-08. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. 2019-2021 ALTIMA AND 2021 ROGUE; AC INOPERATIVE WITH DTC B20C8-14 STORED IF YOU CONFIRM The AC compressor is not engaging when the AC is in the ON position as indicated by the yellow illumination on the AC button, And DTC B20C8-14 ECV (ELECTRICAL CONTROL VALVE) is stored in the IPDM. SERVICE PROCEDURE 1. Clear the DTC, and follow the DTC CONFIRMATION PROCEDURE in the ESM. • If DTC B20C8-14 is past, AC compressor operation is inhibited until the DTC is cleared. • If DTC B20C8-14 returns after being cleared (either Current or Past status), follow the ESM diagnosis procedure. • For models with Automatic Air Conditioning, go to section: VENTILATION, HEATER & AIR CONDITIONER > HEATER & AIR CONDITIONING CONTROL SYSTEM > AUTOMATIC AIR CONDITIONING > DTC/CIRCUIT DIAGNOSIS > B20C8-14 ECV (ELECTRICAL CONTROL VALVE). • For models with Manual Air Conditioning, go to section: VENTILATION, HEATER & AIR CONDITIONER > HEATER & AIR CONDITIONING CONTROL SYSTEM > MANUAL AIR CONDITIONING > DTC/CIRCUIT DIAGNOSIS > B20C8-14 ECV (ELECTRICAL CONTROL VALVE).
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.

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