Service bulletins for the 2021 Acura TLX
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.
132 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
| BPaS03022021 | 2021-03-09. Service bulletin. ELECTRICAL SYSTEM; EQUIPMENT. Dealer Message - AH is looking for failed AGM batteries on the 2021 TLX. If you have one, please issue the warranty claim as soon as possible and set the failed AGM battery aside. The battery will be collected by an AH Tech Line Rep, and shipped for further analysis. |
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| BPaS02092021 | 2021-02-18. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - AH is looking for failed AGM batteries on the 2021 TLX. If you have one, please issue the warranty claim as soon as possible and set the failed AGM battery aside. The battery will be collected by an AH Tech Line Rep, and shipped for further analysis. |
| B21-007 | 2021-02-10. Service bulletin. ENGINE AND ENGINE COOLING. Service Bulletin - The MIL comes on with DTC P0455 (Evaporative Emission [EVAP] System Very Large Leak Detected) stored. |
| 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. |
| BPaS01072021 | 2021-01-14. Service bulletin. EQUIPMENT; ELECTRICAL SYSTEM. Dealer Message - AH is looking for failed AGM batteries on the 2021 TLX. If you have one, please issue the warranty claim as soon as possible and set the failed AGM battery aside. The battery will be collected by an AH Tech Line Rep, and shipped for further analysis. |
| BPaS12182020 | 2020-12-23. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - AH is looking for failed AGM batteries on the 2021 TLX. If you have one, please issue the warranty claim as soon as possible and set the failed AGM battery aside. The battery will be collected by an AH Tech Line Rep, and shipped for further analysis. |
| BPaS12032020 | 2020-12-09. Service bulletin. ELECTRICAL SYSTEM. Dealer Message - AH is looking for failed AGM batteries on the 2021 TLX. If you have one, please issue the warranty claim as soon as possible and set the failed AGM battery aside. The battery will be collected by an AH Tech Line Rep, and shipped for further analysis. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.