Service Bulletin
January 23, 2019

19-004
Version 1

2014-19 RLX Sport Hybrid and 2017-19 MDX Sport Hybrid:
Transmission Judders, Shudders, or Surges While Driving
AFFECTED VEHICLES
Year

Model

Trim

VIN Range

2014-19

RLX Sport
Hybrid

ALL

ALL

2017-19

MDX Sport
Hybrid

ALL

ALL

SYMPTOM
The transmission judders, shudders, or surges while driving.
PROBABLE CAUSE
The transmission fluid has deteriorated prematurely.
CORRECTIVE ACTION
1. A software update is available to prevent the transmission fluid from deteriorating prematurely. Make sure the DCTTMU software is up to date. If it is not, update it.
2. Replace the ATF.
PARTS INFORMATION
Part Name

Part Number

Quantity

Drain Plug Washer (18 mm)

90471-PX4-000

1

ATF Fill Sealing Washer (20 mm)

94109-20000

1

Part Name

Part Number

Quantity

Acura ATF DW-1

08200-9008A

4

REQUIRED MATERIALS

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.
©

2019 American Honda Motor Co., Inc. — All Rights Reserved

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WARRANTY CLAIM INFORMATION
The warranty is for 8 years or 80,000 miles, whichever comes first.
Operation
Number

Description

Flat Rate
Time

Defect
Code

Symptom
Code

Template
ID

Failed Part Number

1255D0

Update the DCT-TMU
software.

0.2 hr

03214

03505

B19004A

28101-R9T-A650

A

Replace the ATF.
(Includes maintenance
minder reset)

0.5 hr

Skill Level: Repair Technician
SOFTWARE INFORMATION
NOTE
Unnecessary or incorrect repairs resulting from a failure to update the i-HDS are not covered under warranty.
i-HDS Software Version: 1.004.060 or later
J2534 Software Information:
•

PC Application Version 1.1.0.6 or later

•

Database update 12-DEC-2018 or later

Before beginning the repair, make sure that both the i-HDS and J2534 software are updated as listed above.
Do only the update listed in this service bulletin.
For more information about updating the i-HDS, the MVCI or DST-i, and vehicle systems, refer to service bulletin
01-026, Updating Control Units/Modules.
Year/Model

Software
System

Program ID (or later)

Program P/N (or later)

2014-17 RLX Sport Hybrid

DCT-TMU

9TA650

28101-R9T-A650

2018-19 RLX Sport Hybrid

DCT-TMU

9TA730

28101-R9T-A730

2017-19 MDX Sport Hybrid

DCT-TMU

WVA560

28101-5WV-A560

REPAIR PROCEDURE
•

Connect a fully charged jumper battery, and leave it connected during the entire procedure to maintain a steady
voltage.

•

Never turn the ignition to OFF or ACCESSORY during the update. If there is a problem with the update, leave the
ignition turned to ON.

•

To prevent control unit damage, do not operate anything electrical (headlights, audio system, brakes, A/C, power
windows, door locks, etc.) during the update.

1. Check the DCT-TMU software.
•

If the software is not up to date, go to step 2.

•

If the software is up to date, go to step 3.

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2. Update the DCT-TMU software using the i-HDS J2534 rewrite software with the MVCI or DST-i. Refer to Service
Bulletin 01-026, Updating Control Units/Modules.
•

Do not use the MongoosePRO VCI.

3. Replace the ATF.
4. Test drive the vehicle to confirm the juddering, shuddering, or surging is gone.
5. If the maintenance minder did not indicate the ATF needed replacement, reset it with the i-HDS. For more
information about resetting individual maintenance items, refer to the service information. If the maintenance minder
indicated the ATF needed replacement, reset it with the multi-information display.
END

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