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Service bulletins for the 2020 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.

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

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Only bulletins with component: Driver assistance are shown. Show all

Bulletins, newest first
NTB26-0032026-02-10. Service bulletin. FORWARD COLLISION AVOIDANCE: WARNINGS; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. FALSE ACTIVATION OF AEB OR FCW IF YOU CONFIRM The customer states they have experienced false activation and/or unexpected braking of the Automatic Emergency Braking (AEB) or Forward Collision Warning (FCW) system, AND There are no related DTCs stored. ACTION Follow the SERVICE PROCEDURE in this bulletin to: 1. Confirm the current ICC/ADAS part number. 2. Reprogram the ICC/ADAS, if applicable. 3. Configure the ICC/ADAS. 4. Erase the DTCs. IMPORTANT: The purpose of ACTION (above) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair.
NTB19-042F2025-02-25. Service bulletin. FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; ELECTRICAL SYSTEM; SERVICE BRAKES. AUTOMATIC EMERGENCY BRAKING WARNING LIGHT BLINKING APPLIED SYSTEMS: Vehicles equipped with a lane camera (see Figure 1) SERVICE INFORMATION If the Automatic Emergency Braking (AEB) warning light or is blinking (but not illuminated steadily) or the customer states it is blinking, and there are no related DTCs, inspect the windshield. A blinking AEB warning light may occur under the following conditions: • When contamination or foreign material adhere to the lane camera viewing window on the windshield. • When driving while it is snowing or when frost forms on the lane camera viewing window on the windshield. • When the lane camera viewing window on the windshield is temporarily fogged up. Figure 1 Nissan Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are properly trained individuals who have the equipment, tools, safety instruction, and know-how to do a job properly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DO NOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle. HINT: o Refer to the applicable ESM for diagnosis if DTCs are present in the Laser/Radar, ICC/ADAS, or Lane Camera systems. o For further information: • Refer to the following pages. • Use the search keyword “blinking” in the ESM.
NTB19-033G2025-02-25. Service bulletin. SERVICE BRAKES; FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING; ELECTRICAL SYSTEM. INTELLIGENT CRUISE CONTROL INOPERATIVE AND AEB/FEB WARNING LIGHT ON OR RADAR OBSTRUCTION MESSAGE DISPLAYED WITH DTC C1A16 OR C2582 IF YOU CONFIRM IMPORTANT: The purpose of ACTION (on the next page) is to give you a quick idea of the work you will be performing. You MUST closely follow the entire SERVICE PROCEDURE as it contains information that is essential to successfully completing this repair. Nissan Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are properly trained individuals who have the equipment, tools, safety instruction, and know-how to do a job properly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DO NOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle. The customer states that the ICC stopped working while driving, OR The customer states that the AEB/FEB warning light is ON, or turned ON, while driving (Figure 1), OR The message “Unavailable Front Radar Obstruction” or “Forward Driving Aids Temporarily Disabled Front Sensor Blocked See Owner's Manual” has displayed while driving (Figure 2). AND DTC C1A16, C1A16-97, C2582, or C2582-97 is the ONLY DTC stored. Figure 1 Figure 2 This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin. Forward Driving Aids Temporarily Disabled Front Sensor Blocked See Owner’s Manual
NTB20-066C2024-10-22. Service bulletin. LANE DEPARTURE: ASSIST; LANE DEPARTURE: WARNING; ELECTRICAL SYSTEM. LANE CAMERA AIMING VEHICLE REFERENCE VALUES NOT IN ESM SERVICE INFORMATION If the lane camera requires aiming, the values in Table A on page 4 must be used. • For all other models/model years, consult the Electronic Service Manual (ESM).
NTB19-042E2024-06-07. Service bulletin. ELECTRICAL SYSTEM; FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING. AUTOMATIC EMERGENCY BRAKING WARNING LIGHT BLINKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB22-038B2023-06-30. Service bulletin. BACK OVER PREVENTION; ELECTRICAL SYSTEM. RAB WARNING LIGHT ON IN INSTRUMENT PANEL AND/OR DTC B2724-23 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB19-042D2023-04-07. Service bulletin. FORWARD COLLISION AVOIDANCE. AUTOMATIC EMERGENCY BRAKING WARNING LIGHT BLINKING This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB22-073A2023-02-07. Service bulletin. SERVICE BRAKES; BACK OVER PREVENTION; ELECTRICAL SYSTEM. REAR AUTOMATIC BRAKING WARNING LIGHT ILLUMINATED AND/OR DTC C1B56-04 AND/OR C1B56-97 STORED IN THE ADAS CONTROL UNIT This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB22-038A2023-02-07. Service bulletin. SERVICE BRAKES; ELECTRICAL SYSTEM; BACK OVER PREVENTION. RAB WARNING LIGHT ON IN INSTRUMENT PANEL AND/OR DTC B2724-23 STORED This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB22-0732022-08-31. Service bulletin. BACK OVER PREVENTION. REAR AUTOMATIC BRAKING WARNING LIGHT ILLUMINATED AND/OR DTC C1B56-04 OR C1B56-97 STORED IN THE ICC/ADAS2 CONTROL MODULE SERVICE INFORMATION If the customer states the rear automatic braking (RAB) warning light was illuminated and “Malfunction See Owner’s Manual” appears in the message center (Figure 1), AND / OR DTC C1B56-04 and/or C1B56-97 are stored in the ICC/ADAS2 Control Module. Refer to the information on page 2 to determine next steps.
NTB22-0382022-08-27. Service bulletin. BACK OVER PREVENTION. RAB WARNING LIGHT ON IN INSTRUMENT PANEL AND/OR DTC B2724-23 STORED IF YOU CONFIRM The customer states an RAB warning light in the instrument panel’s information display is ON (Figure 1), AND/OR DTC B2724-23 (SONAR CONTROL UNIT - SONAR ECU INTERNAL FAILURE [UNDER VOLTAGE]) is stored. NOTE: A RAB warning light may appear in the vehicle information display. ACTION Reprogram and configure the Sonar Control Unit with the SERVICE PROCEDURE in this bulletin, if applicable.
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.
NTB21-1062022-01-08. 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.
NTB20-066b2021-03-06. Service bulletin. ELECTRICAL SYSTEM; LANE DEPARTURE: SENSING SYSTEM: CAMERA. LANE CAMERA AIMING VEHICLE REFERENCE VALUES NOT IN ESM This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB19-042b2021-03-06. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY:WINDSHIELD; 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.
NTB19-042a2020-12-09. Service bulletin. LANE DEPARTURE: SENSING SYSTEM: CAMERA; 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.
NTB20-066a2020-11-09. Service bulletin. LANE DEPARTURE; VEHICLE SPEED CONTROL. LANE CAMERA AIMING VEHICLE REFERENCE VALUES NOT IN ESM This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previous versions of this bulletin.
NTB20-0662020-10-08. Service bulletin. LANE DEPARTURE; ELECTRICAL SYSTEM. LANE CAMERA AIMING VEHICLE REFERENCE VALUES NOT IN ESM SERVICE INFORMATION If the lane camera requires aiming, the values in Table A on page 4 must be used. • For all other models/model years, consult the Electronic Service Manual (ESM). The following CONSULT-III plus (C-III plus) figures and steps are only provided to indicate where the VEHICLE REFERENCE VALUE from Table A is to be entered. The entire camera aiming procedure must be followed to complete the aiming procedure. • Refer to the ESM section: CRUISE CONTROL & DRIVER ASSISTANCE > DRIVER ASSISTANCE SYSTEM > DRIVER ASSISTANCE SYSTEM > BASIC INSPECTION > LANE CAMERA UNIT > CAMERA AIMING ADJUSTMENT. 1. Turn the ignition ON. 2. From the C-III plus home screen, select Diagnosis (One System).
NTB20-0482020-08-09. Service bulletin. ELECTRICAL SYSTEM:ADAS:BLINDSPOT:SENSORS; EQUIPMENT. 2020 ALTIMA; BLIND SPOT WARNING AND/OR REAR CROSS TRAFFIC ALERT NOT FUNCTIONING PROPERLY IF YOU CONFIRM • The customer states the Blind Spot Warning indicator does not illuminate while driving when there is a vehicle in one of the detection zones (outlined in green in Figure 1). Or • The customer states the Rear Cross Traffic Alert indicator does not illuminate while in reverse and a car is approaching the side of the vehicle near the rear bumper. Or • Unavailable Side Radar Obstruction is displayed in the Vehicle Information Display. HINT: DTC C1E11-97 or C1E91-97 (SENSOR BLOCKAGE, SOW DETECTS A BLOCKAGE) may be stored as a past DTC. If any DTCs other than C1E11-97 or C1E91-97 are stored, diagnose those DTCs before proceeding with this bulletin. ACTION 1. Confirm the current ICC/ADAS 2 part number. 2. Reprogram the ICC/ADAS 2 and perform the blind spot warning action test, if applicable.

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