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Service bulletins for the 2019 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.

223 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

Bulletins, newest first
BTS2002012020-03-03. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Tech Line Summary Article - There was a provisional procedure provided to all field engineers to attempt the repair of certain clients' vehicles that might have experienced issues related to the MOST connectors, resulting in the audio system shutting down and the speakers making popping noises.
B20-0012020-02-25. Service bulletin. ELECTRICAL SYSTEM; STRUCTURE:BODY:DOOR. Service Bulletin - The center display unit stays on with the ignition turned to OFF and the door open. Other symptoms may include the display switches between the Day Mode and Night Mode, the Drive mode not available message appears, and the Disclaimer is stuck on.
BPP010320202020-01-09. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - The January episode of Tech2Tech is now posted. We've got some valuable information for you, so check it out! This month we're featuring "Check Out the MOST Bus Network Failure Log!"
BBMV2001012020-01-09. Service bulletin. ELECTRICAL SYSTEM. Video Message - It concerns the MOST Bus Network Failure Log covered in service bulletin 19-062. The log helps troubleshoot intermittent MOST bus network failures. These are failures with symptoms that can range from complete signal loss and a blank screen to popping from the speakers. Failures are identified as one of these two possible types 1) sudden signal off and 2) critical unlock. Please let us know if you would like a copy of the video sent to you on a DVD or thumb drive.
BBMV2001022020-01-09. Service bulletin. ELECTRICAL SYSTEM. Video Message - It concerns the MOST Bus Network Failure Log covered in service bulletin 19-062. The log helps troubleshoot intermittent MOST bus network failures. These are failures with symptoms that can range from complete signal loss and a blank screen to popping from the speakers. Failures are identified as one of these two possible types 1) sudden signal off and 2) critical unlock. Please let us know if you would like a copy of the video sent to you on a DVD or thumb drive.
B19-0622019-12-18. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - Vehicles with system software version D.1.2.1 or higher now have the capability to log MOST bus network failures.
BPP120420192019-12-11. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - The December episode of Tech2Tech is now posted. We've got some valuable information for you, so check it out! This month we're featuring "Applying Five-Step Troubleshooting."
BBMV1912022019-12-11. Service bulletin. ELECTRICAL SYSTEM. Video Message - It concerns two HFL-related issues that Tech Line has been getting calls on and how applying five-step troubleshooting can help get them fixed. The two HFL-related issues are clients' phones won't connect to Apple CarPlay or Android Auto and clients can't answer incoming calls. Please let us know if you would like a copy of the video sent to you on a DVD or thumb drive.
BBMV1912012019-12-11. Service bulletin. ELECTRICAL SYSTEM. Video Message - It concerns two HFL-related issues that Tech Line has been getting calls on and how applying five-step troubleshotting can help get them fixed. The two HFL-related issues are clients' phones won't connect to Apple CarPlay or Android Auto and clients can't answer incoming calls. Please let us know if you would like a copy of the video sent to you on a DVD or thumb drive.
ONL6GP11082019_12019-11-16. Service bulletin. ELECTRICAL SYSTEM. Owner Notification Letter - On 2019-20 RDX vehicles, the audio/information screen may show the clock being off by 1 hour. To correct this, an audio software update is available. Acura strongly recommends updating your vehicle as soon as possible.
B19-0622019-11-16. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE. Service Bulletin - Vehicles with system software version D.1.2.1 or higher now have the capability to log MOST bus network failures.
B19-0502019-10-03. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL. Service Bulletin - The Display Audio screen may show the clock off by 1 hour. This is caused by a software issue that stores the incorrect date in the audio unit.
BBOM082820192019-09-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL; EQUIPMENT. Dealer Message - Today, August 28, 2019, Acura is announcing a product update for certain 2019-2020 RDX vehicles where the display audio system may not show the correct time. Do an iN VIN status inquiry to determine which units in your inventory are affected.
BBTS1909012019-09-06. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Tech Line Summary Article - Are your client's complaining that their stored navigation favorites have been lost and they can't add them again after the recent OTA update? This issue can be easily fixed with a factory data reset of the infotainment unit.
B19-0502019-09-06. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - The Display Audio screen may show the clock off by 1 hour. This is caused by a software issue that stores the incorrect date in the audio unit.
B19070E2019-08-02. Service bulletin. ELECTRICAL SYSTEM. ServiceNews Article - Some clients have decided to follow procedures found on the Internet to hack the audio/infotainment unit and download applications that we don't approve or support. This can cause multiple issues ranging from the audio/infotainment unit rebooting to the backup camera staying on all the time.
B19070C2019-07-26. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. ServiceNews Article - There's a video going around on YouTube and online forums that claims to fix an issue where the audio unit stays on with the ignition turned to OFF. This fix has you run a Hardware Auto Detect from the diagnostic screen. There's just one problem with this fix: if you run it with the audio unit in this failed state, it causes a No Audio Connection or Radio Unavailable message and a loss of sound! If you get any vehicles in for this issue, find out if your client tried this fix. If they did, advise them to not run it again.
B19070D2019-07-23. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM; EQUIPMENT. "ServiceNews Article - Are you having this issue while using Apple CarPlay? -CarPlay beeps and stops working. -If you try to switch to a different audio source, you see the message XM-Check Tuner or FM-Radio Unavailable. -When you turn the ignition to OFF, the navigation display stays on."
B19-0282019-06-12. Service bulletin. ELECTRICAL SYSTEM:HORN; ELECTRICAL SYSTEM. Service Bulletin - The No. 17 HORN (10 A) fuse is blown or DTC B26AE (horn overload failure) is set. Insufficient battery voltage is being applied to the horns, potentially creating a short in the horn circuit.
B19040C2019-06-06. Service bulletin. EQUIPMENT:ELECTRICAL; ELECTRICAL SYSTEM; EQUIPMENT. ServiceNews Article - Are you hearing a popping or crackling from the speakers? This may be due to a connection issue in the MOST bus network, which can be identified by the unique red and green connectors at each component of the infotainment system.
B19040C2019-04-23. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL. ServiceNews Article - Are you hearing a popping or crackling from the speakers? This may be due to a connection issue in the MOST bus network, which can be identified by the unique red and green connectors at each component of the infotainment system.
BTS1904012019-04-22. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.. "Tech Line Summary Article - Are you having this issue while using Apple CarPlay? -CarPlay beeps and stops working. -If you try to switch to a different audio source, you see the message XM-Check Tuner or FM-Radio Unavailable. -When you turn the ignition to OFF, the navigation display stays on."
BPaS010220199022019-02-10. Service bulletin. ELECTRICAL SYSTEM:HORN. Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019 RDXs with a client complaint of the horn inoperative when pressed or the panic button is used. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BPaS112620189062018-12-07. Service bulletin. ELECTRICAL SYSTEM; LATCHES/LOCKS/LINKAGES; STRUCTURE:BODY:TAILGATE; STRUCTURE. Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019 RDXs with a client complaint of the automatic tailgate not closing. To fully understand the cause of this condition, AHM would like to inspect the vehicle prior to you attempting a repair of any kind.
BPaS112620189032018-12-07. Service bulletin. ELECTRICAL SYSTEM:HORN; ELECTRICAL SYSTEM. Dealer message - American Honda Motor Co., Inc. (AHM) is investigating certain 2019 RDXs with a client complaint of the horn inoperative when pressed or the panic button is used. To fully understand the cause of this condition, AHM would like to inspect 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.