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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Body & Frame >> Exterior/Interior Trim >> Grille Shutter System - Diagnostics - Introduction >> Grille Shutter System >> Problem Symptoms Table [10/2021 - ] >> Problem Symptoms Table [10/2021 - ]

Problem Symptoms Table [10/2021 - ]

NOTE:
  • Before performing troubleshooting, change the grille shutter control mode to maintenance mode.

    Refer to INITIALIZATION [10/2021 - ]

  • If the radiator shutter assembly has been replaced with a new one, perform initialization and change the grille shutter control mode.

    Refer to INITIALIZATION [10/2021 - ]

HINT: 

Symptom Suspected Area Link
Grille shutter does not operate Proceed to "Grille Shutter does not Operate" Refer to Grille Shutter does not Operate [10/2021 - ]
Grille shutter is half opened/closed Proceed to "Grille Shutter is Half Opened/Closed" Refer to Grille Shutter is Half Opened/Closed [10/2021 - ]
Abnormal noise occurs during grille shutter operation Check for ice, etc. around the shutters and links -
Radiator shutter assembly Refer to REMOVAL [10/2021 - ]