Nissan bulletin NTB21-078B
What it saysHigh frequency noise with audio system display on this bulletin has been amended. NHTSA’s full summary ↓
Nissan filed this with NHTSA as a service bulletin dated Jan 29, 2024, received Feb 8, 2024, about the electrical system. It names 1 model year (2021). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationHIGH 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.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| NTB21-078B | Service bulletin | Jan 29, 2024 | 10249906 | PDF, 97 KB |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 1 model year this bulletin names have filed 78 complaints with NHTSA since 2015. 12 of them name Electrical System — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.
Blend doors on the heater do not work. If the temperature is set to 62 degrees, cold air as expected comes out of vents. If set to 63 degrees, maximum hot air comes out of vents, even after the cabin is warmed up. This is distracting to keep fumbling with the temperature control, toggling between 62 and 63 while driving.
2021 Nissan Kicks · Electrical System · filed with NHTSA Dec 23, 2021 · ODI 11444865
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the electrical system
Source: same model, same component group19 other manufacturer communications filed against the Nissan Kicks under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Nissan list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| NTB23-048A | Service bulletin | Apr 8, 2026 | DTC P17F4 STORED IN THE TCM IF YOU CONFIRM The customer reports transmission vibration when accelerating, HINT: Vibration occurs during quic… |
| NTB19-042F | Service bulletin | Feb 20, 2025 | AUTOMATIC EMERGENCY BRAKING WARNING LIGHT BLINKING APPLIED SYSTEMS: Vehicles equipped with a lane camera (see Figure 1) SERVICE INFORMATION… |
| NTB22-027B | Service bulletin | Aug 15, 2024 | DTC B2E01-96 (INTERNAL BATTERY) STORED AS CURRENT IN IVC This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please disc… |
| NTB13-107G | Service bulletin | May 21, 2024 | VEHICLE KEY NOT DETECTED / AUTHENTICATED, ENGINE WILL NOT START This bulletin has been amended. See AMENDMENT HISTORY on the last page. Plea… |
| NTB13-027D | Service bulletin | May 21, 2024 | CAN COMMUNICATION – NETWORK DIAGNOSTIC FLOW CHART This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard pre… |
| NTB10-066C | Service bulletin | May 21, 2024 | CAN COMMUNICATION CODES – DIAGNOSTIC TIPS AND GUIDELINES This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please disc… |
| NTB22-038C | Service bulletin | May 15, 2024 | 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.… |
| NTB21-106B | Service bulletin | May 11, 2024 | DTC C1A17-49 OR C2580-49 STORED IN LASER/RADAR This bulletin has been amended. See AMENDMENT HISTORY on the last page. Please discard previo… |
Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Nissan, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Nissan NTB21-078B a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the NTB21-078B repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does NTB21-078B cover?
The manufacturer filed it against 1 model year: 2021 Nissan Kicks. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.