Service Bulletin
October 6, 2017

17-027
07466 Version 3

Warranty Extension: TLX Transmission Chirps During 3-4 Shift, Poor
Shift Quality, or Engine Overheats Because of Defective ATF Warmer
Supersedes 17-027, dated September 22, 2017 to revise the information highlighted in yellow
AFFECTED VEHICLES
Year
Model
2015–16
TLX

Trim
All with 9-speed A/T

VIN Range
Check the iN VIN status for eligibility

REVISION SUMMARY
Under PARTS INFORMATION, several parts were added or removed. Additionally, some part numbers were changed.
BACKGROUND
American Honda is extending the warranty on the 9-speed transmission warmers to 10 years from the original date of
purchase with unlimited mileage.
This warranty covers vehicles where the engine coolant and ATF mix because of an internal leak in the 9-speed
transmission warmer.
No fluid will be visible outside of the warmer.
If the transmission warmer leaks, it may cause one or more of the following symptoms:
- The vehicle overheats
- The transmission shifts poorly
- The transmission makes during 3-4 shift
This bulletin only applies to vehicles where the client came in with at least one of the listed complaints and the
warmer fails the pressure test.
Transmission warmers may be called in for inspection and if they are found to be not leaking, your claim will be
subject to debit.
This warranty extension will not apply to any vehicle that has ever been declared a total loss or sold for salvage by a
financial institution or insurer, or has a branded or similar title under any state’s law.
CLIENT NOTIFICATION
Owners of affected vehicles will be sent a notification of this warranty extension.
Do an iN VIN status inquiry to make sure the vehicle is shown as eligible.

CLIENT INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment,
and training to correctly and safely maintain your vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not
assume this bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies,
contact an authorized Acura automobile dealer.

© 2017 American Honda Motor Co., Inc. – All Rights Reserved

Page 1 of 44

CORRECTIVE ACTION
Inspect the vehicle and based on your inspection, do one of the following:
• The transmission warmer is OK. Continue with normal troubleshooting.
• Replace the transmission, radiator, coolant hoses, thermostat, coolant reserve tank, ECT (1 and 2) sensor O-rings
and flush the cooling system.
• Replace the short block, cylinder heads, transmission, radiator, thermostat, coolant reserve tank, all of the coolant
hoses, the 2 ECT sensor (1 and 2) O-rings, water passage, water connecting pipe, and flush the heater core.
NOTE: Photos are required every time a transmission is replaced - see page 15. Any transmission replacement
claims that do not include the required photos may be subject to debit.
The flowchart below provides a summary to help navigate the inspection and repair procedure. Make sure you read the
service bulletin steps thoroughly for the detailed repair information.
Start

This ATF warmer is not
the problem. Continue
with normal
troubleshooting.

Good

Check the coolant for
contamination and pressure
test the ATF warmer.

No Good

Did the vehicle overheat?

No

- Replace
transmission,
radiator, and
hoses.
- Flush engine.

Yes

- Replace engine, transmission,
radiator, and hoses
- Flush heater core.

End

Page 2 of 44

WARRANTY CLAIM INFORMATION
Inspect Warmer Only
Operation
Number
2325A1

Description
Inspect the ATF warmer,
reinstall the original warmer
with new O-Rings

Flat Rate
Time

Defect
Code

Symptom
Code

Template
ID

Failed Part
Number

2.1 hrs

6A900

KG800

B17027A

06200-5J4-A71

Page 3 of 44

Inspection and Repair Procedure A
NOTE: Photos must be submitted with any warranty claim where the transmission is replaced – see page 16. Any
transmission replacement claims that do not include the required photos may be subject to debit.
Operation
Number
2185C0

Description

Transmission
Replacement
Number

Flat
Rate
Time

Defect
Code

Symptom
Code

Template
ID

Failed Part
Number

06200-5J4-A71RM

10.5 hrs

6A900

KG800

B17027B

06200-5J4-A71

06200-5J4-A81RM

10.5 hrs

6A900

KG800

B17027C

06200-5J4-A71

06200-5L9-A72RM

10.9 hrs

6A900

KG800

B17027D

06200-5J4-A71

AWD ADV - Inspect the 06200-5L9-A81RM
ATF warmer, check
vehicle for overheating
and do REPAIR
PROCEDURE A.

10.9 hrs

6A900

KG800

B17027E

06200-5J4-A71

2WD BASE/TECH Inspect the ATF
warmer, check vehicle
for overheating and do
REPAIR PROCEDURE
A.
- Replace transmission,
radiator, and hoses
- Flush engine
- Includes photos,
updating PCM/TCM,
idle learn and
alignment

2185C0

2WD ADV - Inspect the
ATF warmer, check
vehicle for overheating
and do REPAIR
PROCEDURE A.
- Replace transmission,
radiator, and hoses
- Flush engine
- Includes photos,
updating PCM/TCM,
idle learn and
alignment

2185C1

AWD BASE/TECH Inspect the ATF
warmer, check vehicle
for overheating and do
REPAIR PROCEDURE
A.
- Replace transmission,
radiator, and hoses
- Flush engine
- Includes photos,
updating PCM/TCM,
idle learn and
alignment

2185C1

- Replace transmission,
radiator, and hoses
- Flush engine
- Includes photos,
updating PCM/TCM,
idle learn and
alignment

Page 4 of 44

Inspection and Repair Procedure B
NOTE: Photos must be submitted with any warranty claim where the transmission is replaced – see page 16. Any
transmission replacement claims that do not include the required photos may be subject to debit.
Operation
Number
2185C6

Description

Transmission
Replacement
Number

Flat
Rate
Time

Defect
Code

Symptom
Code

Template
ID

Failed Part
Number

2WD BASE/TECH - Inspect
the ATF warmer, check
vehicle for overheating and do
REPAIR PROCEDURE B.

06200-5J4-A71RM

12.7 hrs

6A900

KG800

B17027F

06200-5J4-A71

06200-5J4-A81RM

12.7 hrs

6A900

KG800

B17027G

06200-5J4-A71

06200-5L9-A72RM

13.1 hrs

6A900

KG800

B17027H

06200-5J4-A71

06200-5L9-A81RM

13.1 hrs

6A900

KG800

B17027I

06200-5J4-A71

- Replace engine,
transmission, radiator, and
hoses
- Flush heater core
- Includes photos, updating
PCM/TCM, idle learn and
alignment
2185C6

2WD ADV - Inspect the ATF
warmer, check vehicle for
overheating and do REPAIR
PROCEDURE B.
- Replace engine,
transmission, radiator, and
hoses
- Flush heater core
- Includes photos, updating
PCM/TCM, idle learn and
alignment

2185C7

AWD BASE/TECH - Inspect
the ATF warmer, check
vehicle for overheating and do
REPAIR PROCEDURE B.
- Replace engine,
transmission, radiator, and
hoses
- Flush heater core
- Includes updating
PCM/TCM, idle learn and
alignment

2185C7

AWD ADV - Inspect the ATF
warmer, check vehicle for
overheating and do REPAIR
PROCEDURE B.
- Replace engine,
transmission, radiator, and
hoses
- Flush heater core
- Includes updating
PCM/TCM, idle learn and
alignment

Page 5 of 44