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

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Disconnect cable from negative battery terminal

Memorize steering angle neutral point

Lane Control System

Pre-collision system

Intelligent clearance sonar system*1

Lighting system (w/ Automatic Headlight Beam Level Control System)

Parking assist monitor system

Panoramic view monitor system

Initialize back door lock

Power door lock control system

Reset back door close position

Power Back Door System (w/ Outside Door Control Switch)

Replacement of ECM

Vehicle Identification Number (VIN) registration

MIL comes on

ECU Communication ID Registration (Immobiliser system)

Engine start function

Perform code registration (Immobiliser system)

Inspection After Repair

Replacement of automatic transaxle assembly

Perform the following procedures in the order shown:

for U881E Registration:

for U881E Initialization:

for U881F Registration:

for U881F Initialization:

Replacement of ECM

(If possible, read the transaxle compensation code from the previous ECM)

Perform the following procedures in the order shown:

Replacement of ECM

(If impossible, read the transaxle compensation code from the previous ECM)

Perform the following procedures in the order shown:

Front wheel alignment adjustment

Calibration

Suspension, tires, etc.

(The vehicle height changes because of suspension or tire replacement)

Rear television camera assembly optical axis (Back camera position setting)

Parking assist monitor system

for Initialization:

for Calibration:

Panoramic view monitor system

for Initialization:

for Calibration:

Initialize No. 1 headlight ECU sub-assembly LH

Lighting System (w/ Automatic Headlight Beam Level Control System)

(a) w/ Stud Bolt:

(1) Remove the 23 bolts and 2 nuts shown in the illustration.

(b) w/o Stud Bolt:

(1) Remove the 25 bolts shown in the illustration.

(c) Remove the timing chain cover assembly by prying between the timing chain cover assembly and cylinder head sub-assembly or cylinder block sub-assembly with a screwdriver with its tip wrapped with protective tape.

NOTICE:

Be careful not to damage the contact surfaces of the cylinder head sub-assembly, cylinder block sub-assembly and timing chain cover assembly.

(d) Remove the oil pump gasket from the cylinder block sub-assembly.