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
| BTI&01192022903 | 2022-01-26. Service bulletin. EQUIPMENT; STRUCTURE; VISIBILITY:SUN/MOON ROOF ASSEMBLY. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2022 RDXs & 2022 MDXs with a client complaint of deformed or damaged sunroof seals. To better understand the cause of this condition, AHM would like to obtain pictures of the sunroof seal prior to you attempting a repair of any kind. |
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| BTI&01192022902 | 2022-01-26. Service bulletin. EQUIPMENT; STRUCTURE. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for 2019-2021 RDX with a customer complaint of a damaged rear door weatherstrip. To better understand the cause of this condition, AHM would like to obtain images of the weatherstrip before you attempt any repairs. |
| BTI&01072022 | 2022-01-12. Service bulletin. EQUIPMENT; STRUCTURE. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2022 RDXs & 2022 MDXs with a client complaint of deformed or damaged sunroof seals. To better understand the cause of this condition, AHM would like to obtain pictures of the sunroof seal prior to you attempting a repair of any kind. |
| BTI&01042022902 | 2022-01-12. Service bulletin. EQUIPMENT; STRUCTURE. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2022 RDXs & 2022 MDXs with a client complaint of deformed or damaged sunroof seals. To better understand the cause of this condition, AHM would like to obtain images of the sunroof seal prior to you attempting a repair of any kind. |
| 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. |
| BTI&01032022910 | 2022-01-12. Service bulletin. SERVICE BRAKES, HYDRAULIC. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021-2022 RDXs with a client complaint of a brake noise. The noise can be described as a squeal. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind. |
| BTI&01032022906 | 2022-01-12. Service bulletin. STRUCTURE. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for 2019-2021 RDX with a customer complaint of a damaged rear door weatherstrip. To better understand the cause of this condition, AHM would like to obtain images of the weatherstrip before you attempt any repairs. |
| BTI&01032022905 | 2022-01-12. Service bulletin. WHEELS. 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&01032022903 | 2022-01-12. Service bulletin. SUSPENSION. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 RDXs with a client complaint of front bearing noise coming from the front while driving. The noise can be described as howling or moaning. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind. |
| BTI&01032022901 | 2022-01-12. Service bulletin. SEATS. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs with a client complaint of the center console lid (armrest) not latching/staying closed intermittently or at all times. To better understand the cause of this condition, AHM would like to collect specific information from 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. |
| BTI&12152021905 | 2021-12-22. Service bulletin. SEATS. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs with a client complaint of the center console lid (armrest) not latching/staying closed intermittently or at all times. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind. |
| BTI&12152021903 | 2021-12-22. Service bulletin. SUSPENSION. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 RDXs with a client complaint of front bearing noise coming from the front while driving. The noise can be described as howling or moaning. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind. |
| BTI&12152021901 | 2021-12-22. Service bulletin. WHEELS. 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. |
| 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. |
| BTI&12032021 | 2021-12-09. Service bulletin. VISIBILITY. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs & 2022 MDXs with a client complaint of deformed or damaged sunroof seals. To better understand the cause of this condition, AHM would like to obtain images of the sunroof seal prior to you attempting a repair of any kind. |
| 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&11292021912 | 2021-12-03. Service bulletin. LATCHES/LOCKS/LINKAGES:DOORS:LATCH. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2020-2021 RDXs with a client complaint of the center console lid (armrest) not latching/staying closed intermittently or at all times. To better understand the cause of this condition, AHM would like to collect specific information from the vehicle prior to you attempting a repair of any kind. |
| BTI&11292021910 | 2021-12-03. Service bulletin. SUSPENSION; SUSPENSION:FRONT. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 RDXs with a client complaint of front bearing noise coming from the front while driving. The noise can be described as howling or moaning. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind. |
| BTI&11292021907 | 2021-12-03. Service bulletin. WHEELS; 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&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&11162021903 | 2021-11-24. Service bulletin. EQUIPMENT ADAPTIVE/MOBILITY; SUSPENSION:FRONT:WHEEL BEARING; WHEELS; EQUIPMENT. Dealer Message - American Honda Motor Co., Inc. (AHM) is searching for certain 2021 RDXs with a client complaint of front bearing noise coming from the front while driving. The noise can be described as howling or moaning. To better understand the cause of this condition, AHM would like to collect specific parts from the vehicle prior to you attempting a repair of any kind. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.