Installation [08/2023 - ]: Procedure

WARNING: This page is about a different car, the 2025 Lexus RX 450h+, 2025 Lexus RX 350h, 2024 Lexus RX 450h+, 2024 Lexus RX 350h, and 2023 Lexus RX 350h. However, it is still accessible from the selected car via links, so may be relevant.

INSTALL SPARK PLUG

Refer to PROCEDURE - Step 1

INSTALL IGNITION COIL ASSEMBLY

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

Using an 8 mm socket wrench, install the 4 ignition coil assemblies to the cylinder head cover sub-assembly with the 4 bolts.
Torque: 7.5 N.m (76 kgf/cm, 66 in.lbf)

NOTE:
If an ignition coil assembly has been struck or dropped, replace it.
Connect the 4 ignition coil assembly connectors.

INSTALL NO. 1 ENGINE COVER SUB-ASSEMBLY

for HEV Model:
Refer to PROCEDURE - Step 46 [10/2022 - 10/2024] , or refer to PROCEDURE - Step 41 [10/2024 - ]
for PHEV Model:
Refer to PROCEDURE - Step 47

PERFORM INITIALIZATION
1. Perform "Inspection After Repair" after replacing an ignition coil assembly or spark plug.
  Refer to INITIALIZATION [10/2022 - ]