TECHNICAL INSTRUCTIONS
FOR

SPECIAL SERVICE CAMPAIGN 19LC05

OIL COOLER PIPE

CERTAIN 2016 – 2019 RX 450h

The repair quality of covered vehicles is extremely important to Lexus. All dealership technicians
performing this recall are required to successfully complete the most current version of the E-Learning
course “Safety Recall and Service Campaign Essentials”. To ensure that all vehicles have the repair
performed correctly; technicians performing this recall repair are required to currently hold at least one
of the following certification levels:

• Certified
• Senior
• Master
It is the dealership’s responsibility to select technicians with the above certification level or greater
to perform this recall repair. Carefully review your resources, the technician skill level, and ability
before assigning technicians to this repair. It is important to consider technician days off and
vacation schedules to ensure there are properly trained technicians available to perform this repair
at all times.

I.

OPERATION FLOW CHART
Verify Vehicle Eligibility
1. Confirm vehicle VIN matches
the RO.
2. Check Vehicle Inquiry System for
Campaign eligibility.

Not Covered

No further action required.

Covered

Replace Oil Cooler Pipe assembly

Campaign complete.
Return the vehicle to the customer.

II. IDENTIFICATION OF AFFECTED VEHICLES
1. CHECK VEHICLE FOR CAMPAIGN ELIGIBILITY
a. Compare the vehicles VIN to the VIN listed on the Repair Order to ensure they match.
b. Check the TIS Vehicle Inquiry System to confirm the VIN is involved in this Campaign, and
that it has not already been completed.
Note: TMNA warranty will not reimburse dealers for repairs completed on vehicles that are
not affected or were previously completed, even by another dealer.

III. PREPARATION
A.

PARTS
Part Number
04009-40131

Part Description
Pipe Kit, Oil Cooler*
*The kit above includes the following parts:

Part Number
15757-31031
11496-31020
15785-31040

Part Description
Oil Cooler Pipe
Gasket, Oil Hole Cover
Gasket, Oil Cooler

Quantity
1
Quantity
1
1
1

Note: The Warranty system will only reimburse the dealer for the price of the Oil Cooler Pipe
Kit. Warranty will not reimburse the dealer for individual parts.
B.

TOOLS & EQUIPMENT
•

Standard Hand Tools

•

Torque Wrench

•

E8 Torx socket

C. MATERIALS

•

Engine Oil 0W-20 (ILSAC GF-5)
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IV. BACKGROUND
The involved vehicles are equipped with an engine oil cooling system. The oil cooling system
could experience a small leak due to a manufacturing issue. If a vehicle is continuously
operated with this condition, it may result in abnormal engine noise, illumination of the
Malfunction Indicator Light (MIL), and an engine oil level low message. Over time, an oil
pressure warning message may be displayed on the multi-information display and/or a buzzer
may sound.

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V.

COMPONENTS

4

VI.

DISASSEMBLY
1. REMOVE ENGINE UNDER COVERS
a. Remove the wheel opening extension pad RH.
b. Remove the wheel opening extension pad LH.
c. Remove No. 1 Engine Under Cover.
d. Remove No. 3 Engine Under Cover.

2. REMOVE WIRING HARNESS BRACKET
a. Disconnect the connector.
b. Disengage the 3 wiring harness clamps.
c. Remove the bolt, and remove the wiring harness
clamp bracket.

d. Remove the 2 bolts and bracket.

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3. REMOVE FOAM INSULATORS
a. Remove the 2 block insulators.

4. REMOVE OIL COOLER PIPE
a. Remove the 3 bolts and 4 nuts.

Note: Engine oil will leak from the flanges as the
nuts/bolts are loosened.

b. Using a E8 Torx socket, remove the stud bolt.
c. Remove the Oil Cooler Pipe.

VII.

REASSEMBLY
1. INSTALL NEW OIL COOLER PIPE
a. Clean the gasket surfaces on both the oil cooler
assembly and the engine oil pan.
b. Temporarily install the NEW Oil Cooler Pipe
using 2 NEW gaskets.
Note: The gaskets can be installed in any
orientation.

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c. Reinstall the stud bolt using an E8 Torx socket.
Torque: 10.0 N∙m (102 kgf∙cm, 84 in.lbs)

d. Install the 3 bolts and 4 nuts.
Torque: 21 N∙m (214 kgf∙cm, 15 ft.lbs)

Note: When tightening bolt A and nut B, be sure to
use a torque wrench with a total length of
approximately 85 mm (3.35 in.), combining the
torque wrench with a deep socket wrench, extension
bar, etc.

2. INSTALL FOAM INSULATORS
a. Reinstall the 2 foam insulators.

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3. INSTALL WIRING HARNESS BRACKET
a. Install the bracket with the 2 bolts.
Torque: 24.5 N∙m (250 kgf∙cm, 18 ft.lbs)

b. Install the wiring harness clamp bracket with the
bolt.
Torque: 13 N∙m (133 kgf∙cm, 120 in.lbs)

c. Engage the 3 wiring harness clamps.
d. Connect the connector.

4. INSPECT FOR OIL LEAKS
a. Start engine.
b. Inspect for oil leaks at the two Oil Cooler Pipe
flanges. Correct as necessary.
c. Add engine oil as necessary to restore correct
level.

5. INSTALL ENGINE UNDER COVERS
a. Remove No. 1 Engine Under Cover.
b. Remove No. 3 Engine Under Cover.
c. Remove the wheel opening extension pad RH.
d. Remove the wheel opening extension pad LH.

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◄ VERIFY REPAIR QUALITY ►
•
•

Confirm there are no oil leaks.
Confirm the oil level is at the correct level.
If you have any questions regarding this update, please contact your area representative.

10. APPENDIX
A. PARTS DISPOSAL
As required by Federal Regulations, please make sure all recalled parts (original parts)
removed from the vehicle are disposed of in a manner in which they will not be reused,
unless requested for parts recovery return.
B. CAMPAIGN DESIGNATION DECORDER

19TA01
19

T

A

01

Year Campaign
is Launched

Vehicle Make

Field Action Category and Phase

Field Action Sequence

A = Safety Recall Remedy
B = Safety Recall Interim
C = Special Service Campaign
D = Limited Service Campaign
E = Customer Support Program
F = Emissions Recall

01 = 1st Field Action of the year
02 = 2nd Field Action of the year
03 = 3rd Field Action of the year

19 = 2019
20 = 2020
21 = 2021
22 = 2022
23 = 2023
Etc...

T = Toyota
L = Lexus

(May use other characters in unique
cases)

(The sequence is unique for each
Field Action category)
(May use other characters in
unique cases)

Examples:
19TA01 = Launched in 2019, Toyota, Safety Recall Remedy Phase, 1st Safety Recall
Launched in 2019
20TC02 = Launched in 2020, Special Service Campaign, 2nd Special Service Campaign
Launched in 2020
21TE05 = Launched in 2021, Customer Support Program, 5th Customer Support Program
Launched in 2021
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