Service bulletins for the 2012 Toyota Prius C
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.
366 on file from NHTSA, as of 2026-10-19.
About C1391 on the 2012 Toyota Prius C: what the code means, and the bulletins and recalls about the same components.
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Only bulletins with trouble code: C1391 are shown. Show all
| T-SB-0028-21 | 2021-06-21. Service bulletin. SERVICE BRAKES, HYDRAULIC:FLUID; EQUIPMENT; ELECTRICAL SYSTEM. TSB: Some 2012 ? 2014 model year Prius C hybrid vehicles may exhibit a condition in which the brake, ABS, and/or TRAC warning lights are on and/or a Check VSC message displays. Diagnostic Trouble Codes (DTCs) C1391, C1252, C1256, and/or C1253 may also be stored. This condition may be caused by a small internal brake fluid leak inside the brake booster assembly with master cylinder. Follow the Repair Procedure in this bulletin to address this condition. |
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The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.