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) Disengage the 2 clamps and remove the bolt and sensor wire from the water inlet pipe.

(a) Slide the clip and remove the No. 3 water by-pass hose from the water inlet pipe.

(a) Slide the clip and remove the No. 2 water by-pass hose from the water outlet.

(a) Slide the clip and remove the ventilation hose from the PCV valve (ventilation valve sub-assembly).

(a) Slide the clip and remove the No. 2 ventilation hose from the cylinder head cover sub-assembly.

(a) Remove the 2 bolts and No. 1 compressor mounting bracket from the cylinder block sub-assembly.

(a) Remove the 2 bolts and V-ribbed belt tensioner assembly.

(b) Remove the bolt and engine oil level dipstick guide from the camshaft housing sub-assembly LH and oil pan sub-assembly.

(c) Remove the engine oil level dipstick guide O-ring from the engine oil level dipstick guide.

(a) Remove the No. 5 cylinder block insulator from the engine assembly.

(a) Remove the 3 bolts and drive shaft bearing bracket from the cylinder block sub-assembly.

(a) Remove the 3 bolts and No. 2 transfer stiffener plate from the cylinder block sub-assembly.

(a) Remove the 2 bolts and No. 1 exhaust pipe support bracket from the oil pan sub-assembly.

(a) Remove the bolt and wire harness clamp bracket from the camshaft housing sub-assembly.

(a) Remove the bolt and radiator pipe clamp from the camshaft housing sub-assembly LH.

(a) Using an 8 mm socket wrench, remove the stud bolt from the front No. 1 engine mounting bracket LH.