Installation [11/2021 - ]: Procedure

WARNING: This page is about a different car, the 2024 Lexus IS 500, 2023 Lexus IS 500, and 2022 Lexus IS 500. However, it is still accessible from the selected car via links, so may be relevant.

INSTALL NO. 1 SWITCH WIRE
HINT:

Perform this procedure only when replacement of the No. 1 switch wire is necessary.
1. Engage the 4 guides to install the No. 1 switch wire to the lower steering wheel boss cover.
  NOTE:
  If the heater thermistor comes off the lower steering wheel boss cover, replace the steering wheel assembly.
2. Install steering vibration and heater ECU.
  Refer to PROCEDURE - Step 1
3. Install steering pad switch assembly.
  Refer to PROCEDURE - Step 1
4. Install cruise control main switch.
  Refer to PROCEDURE - Step 1
INSTALL SHIFT PADDLE SWITCH (TRANSMISSION SHIFT SWITCH ASSEMBLY)
1. Connect the 2 shift paddle switch (transmission shift switch assembly) connectors to install the 2 shift paddle switches (transmission shift switch assemblies) to the No. 1 switch wire.
2. Engage the 4 claws and 2 guides to connect the 2 shift paddle switches (transmission shift switch assemblies) to the steering wheel assembly.
3. Install 4 new screws.
  Torque: 1.7 N.m (17 kgf/cm, 15 in.lbf)
INSTALL STEERING WHEEL ASSEMBLY
Refer to INSTALLATION [11/2021 - ]