Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Installation

INSTALLATION

PROCEDURE

1. INSTALL HORN BUTTON ASSEMBLY

(a) Check that the engine switch is off.

(b) Check that the cable is disconnected from the negative (-) battery terminal.

CAUTION:

Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.

(c) Engage the wire harness clamp.

*a Airbag Connector *b Horn Connector *c Airbag Connector Lock

(d) Connect the 2 airbag connectors to the horn button assembly.

(e) Push in the 2 airbag connector locks to install the 2 airbag connectors.

(f) Connect the horn connector to the horn button assembly.

(g) Push the horn button assembly to engage the 3 pins carefully and install the horn button assembly. NOTICE: Make sure that the pins are securely inserted into the steering wheel assembly holes. Make sure to engage the 2 upper pins first. Make sure that the horn button assembly is securely installed.

2. INSTALL LOWER NO. 3 STEERING WHEEL COVER

(a) Insert the guide and engage the claw to install the lower No. 3 steering wheel cover.

3. INSTALL LOWER NO. 2 STEERING WHEEL COVER

(a) Insert the guide and engage the claw to install the lower No. 2 steering wheel cover.

4. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

NOTICE:

When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

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5. INSPECT HORN BUTTON ASSEMBLY

(a) Make sure that the horn sounds.

If the horn does not sound, inspect the horn system.

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6. PERFORM DIAGNOSTIC SYSTEM CHECK

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7. INSPECT SRS WARNING LIGHT

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