Service bulletins for the 2023 Toyota CROWN
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.
138 on file from NHTSA, as of 2026-10-19.
About P0840 on the 2023 Toyota CROWN: what the code means, and the bulletins and recalls about the same components.
By type
By component
By trouble code
Only bulletins with trouble code: P0840 are shown. Show all
| TTT074023A | 2024-01-29. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. TT: Some 2023MY Crown Platinum grade ONLY may require a transaxle and transmission control module (TCU) replacement for low-speed vibration from Transaxle and/or DTC for P084000/P084087. |
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| TTT074023 | 2024-01-29. Service bulletin. ELECTRICAL SYSTEM; POWER TRAIN. TT: Some 2023MY Crown Platinum grade ONLY may require a transaxle and transmission control module (TCU) replacement for low-speed vibration from Transaxle and/or DTC for P084000/P084087. |
| T-TT-0740-23 Rev | 2023-11-27. Service bulletin. POWER TRAIN:AXLE ASSEMBLY; ELECTRICAL SYSTEM; POWER TRAIN. TT: Some 2023MY Crown Platinum grade ONLY may require a transaxle and transmission control module (TCU) replacement for low-speed vibration from Transaxle and/or DTC for P084000/P084087. |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.