Service bulletins for the 2021 Acura ILX
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.
36 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&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. |
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| B21-011 | 2021-08-13. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - The MIL comes on with DTC U0155 (Lost Communication with Gauge Control Module). |
| B21-011 | 2021-04-05. Service bulletin. ELECTRICAL SYSTEM. Service Bulletin - The MIL comes on with DTC U0155 (Lost Communication with Gauge Control Module). |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.