P17AC on the 2024 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-0093-25 | 2026-01-09. Service bulletin. Some 2024 – 2025 model year 4WD Tacoma and Tacoma Hybrid vehicles may exhibit a condition where the 4WD lights are flashing and a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs) present: •P277111 – Four Wheel Drive (4WD) Low Switch Circuit Short to Ground •P178462 – 4WD/AWD Transfer Case Shift Motor Limit Switch and Transfer Case H4-L4 Position Switch Signal Compare Failure •P17AC62 – 4WD/AWD Transfer Case Shift Motor Limit Switch Signal Compare Failure The transfer case breather hose has been updated. |
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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.