Service bulletins for the 2021 Acura RDX
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.
194 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
| BTI&02012022901 | 2022-02-08. Service bulletin. EQUIPMENT; VISIBILITY:SUN/MOON ROOF ASSEMBLY; ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2022 RDXs & 2022 MDXs with a client complaint of the sunshade or sunroof closing partially before reversing open or will not move in the closing direction from any position. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
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| BTI&01042022901 | 2022-01-12. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM; STRUCTURE. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2022 RDXs & 2022 MDXs with a client complaint of the sunshade or sunroof closing partially before reversing open or will not move in the closing direction from any position. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
| ONL6GB12142021 | 2021-12-22. Service bulletin. ELECTRICAL SYSTEM. Owner Notification Letter - In February of 2022, the 3G network will no longer support the in-vehicle services that the vehicle has previously supported. The Telematics Control Unit (TCU) using the Over the Air (OTA) update is required to connect to the VoLTE network to continue communications. Acura strongly recommends updating your vehicle as soon as possible. |
| B21-029 | 2021-12-22. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - By February of 2022, the current 3G network the vehicle connects to for services, will no longer be in-service. The Telematics Control Unit (TCU) Over the Air Update (OTA) is required to connect to the VoLTE network to continue communications. |
| BBOM12032021901 | 2021-12-09. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - Today, December 3, 2021, Acura is announcing a product improvement campaign (PIC) for certain 2019-2021 RDX vehicles to update the telematics control unit (TCU) software for an upcoming network service change. Perform an iN VIN status inquiry to determine which units in your inventory are affected. |
| B21-029 | 2021-12-09. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - By February of 2022, the current 3G network the vehicle connects to for services, will no longer be in-service. The Telematics Control Unit (TCU) Over the Air Update (OTA) is required to connect to the VoLTE network to continue communications. |
| BTI&11292021904 | 2021-12-03. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM; STRUCTURE. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs & 2022 MDXs with a client complaint of the sunshade or sunroof closing partially before reversing open or will not move in the closing direction from any position. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
| B21-028 | 2021-12-03. Service bulletin. ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN. Service Bulletin - The MIL comes on with DTC P061B (PCM Internal Malfunction) is stored. |
| BTI&11162021906 | 2021-11-24. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT; TIRES:PRESSURE MONITORING AND REGULATING SYSTEMS. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for 2019-2022 ILXs, 2022 MDXs, 2021-2022 RDXs & TLXs with a client complaint of the Tire Pressure Monitoring System (TPMS) light on due to a faulty sensor with a client complaint of the Tire Pressure Monitoring System (TPMS) light on due to a faulty sensor. To better understand the cause of this condition, AHM would like to collect specific parts from the before attempting a repair of any kind. |
| BTI&10302021901 | 2021-11-03. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs & 2022 MDXs with a client complaint of the sunshade or sunroof closing partially before reversing open or will not move in the closing direction from any position. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
| BTI&10122021 | 2021-10-19. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs & 2022 MDXs with a client complaint of the sunshade or sunroof closing partially before reversing open or will not move in the closing direction from any position. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
| BTI&10012021901 | 2021-10-16. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs with a client complaint of the sunshade or sunroof closing partially before reversing open or will not move in the closing direction from any position. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
| BTI&09072021901 | 2021-09-16. Service bulletin. ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL; ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs with a client complaint of the sunshade or sunroof closing partially before reversing open or will not move in the closing direction from any position. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
| BPaS09072021902 | 2021-09-16. Service bulletin. ELECTRICAL SYSTEM:ADAS:HUD:SOFTWARE; VISIBILITY; ELECTRICAL SYSTEM:ADAS:HUD:CAMERA/SENSOR; ELECTRICAL SYSTEM:ADAS:HUD:PROJECTOR. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2019-2021 RDXs with a client complaint of a rattle noise coming from the Head-Up Display (HUD). To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
| BJA17882 | 2021-09-16. Service bulletin. ELECTRICAL SYSTEM. Job Aid - This job aid contains information on the MOST Bus Network and troubleshooting information for common problems. |
| BJA17882 | 2021-09-09. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Job Aid - This job aid contains information on the MOST Bus Network and troubleshooting information for common problems. |
| BTI&08192021906 | 2021-08-25. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs with a client complaint of the sunshade or sunroof closing partially before reversing open or will not move in the closing direction from any position. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
| BTI&07302021902 | 2021-08-03. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs with a client complaint of the sunshade or sunroof closing partially before reversing open or will not move in the closing direction from any position. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
| BTI&07072021904 | 2021-07-20. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs with a client complaint of the sunshade or sunroof closing partially before reversing open or not close at all. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
| BTI&06152021901 | 2021-06-22. Service bulletin. VISIBILITY; ELECTRICAL SYSTEM. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs with a client complaint of the sunshade or sunroof closing partially before reversing open or not close at all. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
| B20-031 | 2021-06-22. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - There is a popping or crackling from the speakers, a blank display, or no sound from the audio system. You may also see a Network Loss message. |
| BTI&05282021901 | 2021-06-04. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs with a client complaint of the sunshade or sunroof closing partially before reversing open or not close at all. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
| BPaS04292021 | 2021-05-05. Service bulletin. ELECTRICAL SYSTEM; VISIBILITY. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs with a client complaint of the sunshade or sunroof closing partially before reversing open or not close at all. To better understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind. |
| B20-053 | 2021-04-21. Service bulletin. ELECTRICAL SYSTEM; ENGINE AND ENGINE COOLING. Service Bulletin - The MIL is flashing with loss of power. |
| B21010C | 2021-01-30. Service bulletin. ELECTRICAL SYSTEM. ServiceNews Article - It has been found that when replacing the PCM/ECM, the Dynamic Drive mode images - normally displayed on the center display - no longer appear. In order to prevent this, make sure that the software version on the infotainment control unit reads D.1.5.1 or higher. If the version is not up to date, you must complete the update by using the OTA function or via USB. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.