P2771 · Manufacturer communications

TOYOTA · 2025-12-17

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.

CADILLAC, CHEVROLET, GMC · 2013-06-10

This Preliminary Information communication provides information to the technician about vehicles that have a malfunction indicator light or service anti-lock brake system message displayed in the Driver Information Center. Technician may find Diagnostic Trouble Code C0055 or P2771. Technician will need to check for excess movement of the tone wheel or output shaft.