C1AC1 on the 2019 Toyota Tacoma
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| T-SB-0001-20 | 2020-02-24. Service bulletin. TSB: Some 2019 model year Tacoma vehicles may exhibit a Blind Spot Monitor System warning message with any of the following Diagnostic Trouble Codes (DTCs) present. ? C1AC1 ? Master Module Horizontal Axis Misalignment ? C1AC2 ? Slave Module Horizontal Axis Misalignment. Follow the Repair Procedure in this bulletin to address this condition. |
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1 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.