Service bulletins for the 2018 Acura RLX
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.
26 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| ONL6R508212023 | 2023-08-31. Service bulletin. EQUIPMENT; STEERING. Warranty Extension - Under certain circumstances, abnormal noise may be heard from the rear when driving straight or making small side-to-side turning movements with the steering wheel. The P-AWS indicator or warning light may also illuminate with certain diagnostic trouble codes. |
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| ONL6R507142023 | 2023-07-21. Service bulletin. STRUCTURE; ELECTRICAL SYSTEM; STEERING. Owner Notification Letter - Under certain circumstances, abnormal noise may be heard from the rear when driving straight or making small side-to-side turning movements with the steering wheel. The MIL may also illuminate with certain DTC codes. |
| B23-022 | 2023-06-15. Service bulletin. STEERING. Service Bulletin - Due to manufacturing errors, abnormal noise may be heard from the rear when driving straight or making small side-toside turning movements with the steering wheel. The MIL may also illuminate with DTC C1600-94 (PAWS unexpected behavior) and/or C1611-13/C1621-13 (PAWS actuator disconnection L&R). |
| BBOM06092023901 | 2023-06-15. Service bulletin. STEERING. Dealer Message - Due to manufacturing errors, abnormal noise may be heard from the rear when driving straight or making small side-to-side turning movements with the steering wheel. The MIL may also illuminate with DTC C1600-94 (PAWS unexpected behavior) and/or C1611-13/C1621-13 (PAWS actuator disconnection L&R). |
| ONLA8E20220830 | 2022-09-09. Service bulletin. FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; ENGINE AND ENGINE COOLING; ELECTRICAL SYSTEM. Owner notification - Our records indicate that a Emissions Recall has not been completed on this vehicle. When the powertrain control module (PCM) detects a malfunction in one of the odd number transmission gears, it will set one of four diagnostic trouble codes (DTCs). Due to inappropriate calibration of the PCM, the On Board Diagnostic (OBD) system cannot properly clear the transmission permanent DTC as required. |
| BTI&05102022901 | 2022-06-06. Service bulletin. FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING. American Honda Motor Co., Inc. (AHM) is searching for certain 2016-2020 MDXs, RLXs & TLXs with a client complaint of the Malfunction Indicator Light (MIL) on with the DTC P030X (Cylinder Misfire Detected), P0171 & P0174 (Rear/Front Bank Fuel System Too Lean), or P219A&B (Air-Fuel Ratio Variation of Cylinder) stored. 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. |
| B98015 | 2022-05-09. Service bulletin. EQUIPMENT. Special Tool Loan Program: Under TOOLS AVAILABLE FOR LOAN, the list has been updated. |
| ONLA8E11022020 | 2020-11-11. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. Owner Notification Letter - When the powertrain control module (PCM) detects a malfunction in one of the odd number transmission gears, it will set one of four diagnostic trouble codes (DTCs). Due to inappropriate calibration of the PCM, the On Board Diagnostic (OBD) system cannot properly clear the transmission permanent DTC as required. |
| BBOM09152020 | 2020-09-22. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). Dealer Message - Today, September 15, 2020, Acura is announcing a stop sale and emissions recall for certain 2017-2020 MDX Sport Hybrid and 2014, 2016-2020 RLX Sport Hybrid vehicles that may not properly clear specific diagnostic trouble codes (DTC). Presence of these codes may prevent the vehicle from passing a smog test. Refer to your eResponsibility report or do an iN VIN status inquiry to determine which units in your inventory are affected. |
| B20-040 | 2020-09-22. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM); EQUIPMENT; ELECTRICAL SYSTEM:SOFTWARE; POWER TRAIN:AUTOMATIC TRANSMISSION:INTERNAL:GEARS. "Service Bulletin - When the PCM detects a malfunction in one of the odd number transmission gears, it will set one of the following DTCs: -P073F (unable to engage gear 1) -P074B (unable to engage gear 3) -P074D (unable to engage gear 5) -P074F (unable to engage gear 7) Due to inappropriate calibration of the PCM, the OBD system cannot properly clear the transmission permanent DTC as required." |
| B14-025 | 2020-09-22. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS. Service Bulletin - The timing belt area chirps after the engine warms up. |
| B14-025 | 2020-08-14. Service bulletin. ENGINE AND ENGINE COOLING. Service Bulletin - The timing belt area makes a chirping noise after the engine warms up. |
| B20-020 | 2020-06-25. Service bulletin. VISIBILITY. Service Bulletin - The blower motor makes excessive noise, runs slowly, or intermittently stops working. |
| B20-009 | 2020-02-26. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - There is a high-pitched sound from the speakers while on a Bluetooth HandsFreeLink (HFL) call. |
| B20-009 | 2020-02-20. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - There is a high-pitched sound from the speakers while on a Bluetooth HandsFreeLink (HFL) call. |
| B20-009 | 2020-02-11. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - There is a high-pitched sound from the speakers while on a Bluetooth HandsFreeLink (HFL) call. |
| B19050B | 2019-06-06. Service bulletin. ELECTRONIC STABILITY CONTROL (ESC). ServiceNews Article - When removing and installing a cable reel, you need to keep both the cable reel and the steering angle sensor in position. If you don't, the VSA indicator may come on along with one or more VSA DTCs. And when you run the Neutral Memorization Procedure in the i-HDS, it won't complete. |
| B17120C | 2019-03-26. Service bulletin. WHEELS. ServiceNews Article - This article replaces "Don't Worry About the Brown Dust on the Wheels," posted in December 2017. On some arriving vehicles, are you seeing brown dust covering the wheels? Don't worry; it's completely normal. |
| B19-004 | 2019-02-10. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION; POWER TRAIN. Service bulletin - The transmission judders, shudders, or surges while driving. The transmission fluid has deteriorated prematurely. |
| B16-008 | 2018-10-01. Service bulletin. FUEL SYSTEM, GASOLINE; FUEL SYSTEM, GASOLINE:DELIVERY:FUEL PUMP. Service bulletin - The high pressure fuel pump area chirps after the engine is warm. The high pressure fuel pump is making a chirp. |
| B18070B | 2018-08-06. Service bulletin. EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY. Service news article - If the On Demand Multi-Use Display? (ODMD) isn't responding to touch or is freezing up, the reason could be there's debris lodged in the gap between the touch screen and the bezel. Lodged debris contacting the screen can cause a false input, resulting in this issue. And since that gap widens and narrows with cabin temperature, this issue can be intermittent, especially in cold weather. |
| B18070B | 2018-07-30. Service bulletin. EQUIPMENT. Service news article - If the On Demand Multi-Use Display? (ODMD) isn't responding to touch or is freezing up, the reason could be there's debris lodged in the gap between the touch screen and the bezel. Lodged debris contacting the screen can cause a false input, resulting in this issue. And since that gap widens and narrows with cabin temperature, this issue can be intermittent, especially in cold weather. |
| B16-008 | 2018-05-14. Service bulletin. ENGINE; FUEL SYSTEM, OTHER:DELIVERY:FUEL PUMP. Service bulletin - The high pressure fuel pump area chirps after the engine is warm. The high pressure fuel pump is making a chirp noise. NOTE: This noise does not impact the pump, engine function, or reliability. |
| B17-040 | 2018-04-23. Service bulletin. SERVICE BRAKES, HYDRAULIC. Service bulletin - The front brakes squeal when braking at slow speeds after the brakes are warm (after approximately 20 miles or 30 minutes of driving). |
| BTS180202 | 2018-02-26. Service bulletin. STRUCTURE:BODY. Tech line summary article - debris lodged in the gap between the touch screen and the bezel. Lodged debris contacting the screen can cause a false input, resulting in this issue. And since that gap widens and narrows with cabin temperature, this issue can be intermittent, especially in cold weather. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.