Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: On-vehicle Inspection

ON-VEHICLE INSPECTION

CAUTION / NOTICE / HINT

CAUTION:

Be sure to correctly follow the removal and installation procedures for the horn button assembly.

PROCEDURE

1. INSPECT HORN BUTTON ASSEMBLY (for Vehicle not Involved in Collision)

(a) Perform a diagnostic system check.

Click here

(b) Visually check for defects with the horn button assembly installed to the vehicle.

HINT:

The defects are as follows:

  • Cuts on the surface or in the grooves
  • Small cracks on the surface or in the grooves
  • Significant discoloration on the surface or in the grooves

OK:

No defects are found.

If any defects are found, replace the horn button assembly with a new one.

2. INSPECT HORN BUTTON ASSEMBLY (for Vehicle Involved in Collision and Airbag not Deployed)

(a) Perform a diagnostic system check.

Click here

(b) Visually check for defects with the horn button assembly removed from the vehicle.

HINT:

The defects are as follows:

  • Cuts on the surface or in the grooves
  • Small cracks on the surface or in the grooves
  • Significant discoloration on the surface or in the grooves
  • Cracks or other damage to the connector
  • Deformation of the steering wheel assembly
  • Deformation of the installation surface of the horn button assembly
  • Interference or uneven clearance between the horn button assembly and steering wheel assembly when a new horn button assembly is installed to the steering wheel assembly

OK:

No defects are found.

If any defects are found, replace the horn button assembly or steering wheel assembly with a new one.

    Components
    COMPONENTS ILLUSTRATION *1 HORN BUTTON ASSEMBLY *2 LOWER NO. 2 STEERING WHEEL COVER *3 LOWER NO. 3 STEERING WHEEL COVER - - ...

    Removal
    REMOVAL CAUTION / NOTICE / HINT The necessary procedures (adjustment, calibration, initialization, or registration) that must be performed after parts are removed, installed, or replaced during the ho ...

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    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Owners Manual

    Lexus RX (RX 350L, RX450h) 2016-{YEAR} Repair Manual

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