2017-2019 Toyota Highlander Hybrid with Misfire P0301, P0302, P0303, P0304, P0305, and/or P0306


Some 2017 – 2019 model year Highlander HV vehicles may exhibit a MIL ON condition with one or more of the following Diagnostic Trouble Codes (DTCs):

P0301 – Cylinder 1 Misfire Detected
P0302 – Cylinder 2 Misfire Detected
P0303 – Cylinder 3 Misfire Detected
P0304 – Cylinder 4 Misfire Detected
P0305 – Cylinder 5 Misfire Detected
P0306 – Cylinder 6 Misfire Detected

Follow the Repair Procedure in bulletin T-SB-0148-19 to address this condition

The fix is to Engine ECM Reprogramming and R & R Ignition Coils with updated part number 90919-02280

This repair is covered under the Toyota Federal Emission Warranty. This warranty is in effect for 96 months or 80,000 miles, whichever occurs first, from the vehicle’s in-service date.