GROUP

NUMBER

CAMPAIGN

Technical Service Bulletin
SUBJECT:

DATE

26-01-029H
MODEL(S)

MARCH 2026

IONIQ 5 (NEA EV)
IONIQ 9 (ME1A EV)

FRONT MOTOR & REDUCTION GEAR ASSEMBLY
REPLACEMENT FOR NOISE
(LIMITED COVERAGE CAMPAIGN LA9)

 IMPORTANT
Dealers must perform this field action on all affected vehicles within 10 / 100,000 High Voltage
Warranty for original owners, and is transferable to subsequent owners, prior to customer retail
delivery and whenever an affected vehicle is in the shop for any maintenance or repair.
See Warranty Information section for more details. Access the “Vehicle Information” screen via
WebDCS to verify “Warranty Start Date” and ensure the vehicle is High Voltage Warranty, observing
mileage prior to any repair work.
Description: Certain IONIQ 5 (NEA EV) and IONIQ 9 (ME1A EV) vehicles (affected VINs listed below)
may exhibit a high-frequency noise from the front motor area during low-speed deceleration. This
bulletin provides instructions to replace the front motor and gear reduction assembly.

Applicable Vehicles (Certain):
Model Year

Model

Production Dates

2025

IONIQ 5 (NEA EV)

05/06/2025 – 06/05/2025

2026

IONIQ 9 (ME1A EV)

05/07/2025 – 06/04/2025

NOTICE
To avoid any potential damage to IONIQ vehicles, repairs can only be performed at IONIQ
certified dealers.

Circulate To: General Manager, Service Manager, Parts Manager, Warranty Manager, Service
Advisors, Technicians, Body Shop Manager, Fleet Repair

SUBJECT:

FRONT MOTOR & REDUCTION GEAR ASSEMBLY REPLACEMENT
FOR NOISE (LIMITED COVERAGE CAMPAIGN LA9)

Parts Information:
Model

Part Name

Part Number

Figure

Remarks

MotorGear Drive Unit
Assy, FRT

44000-18FA1

Qty: 1

Clip

49557-F2000

Qty: 2

Nut-Castle

49551-4T000

Pink Antifreeze/
Coolant

00232-19098

IONIQ 5
(NEA EV)
&
IONIQ 9
(ME1A EV)

TSB #: 26-01-029H

Qty: 2

Qty: 2 gallons

Page 2 of 5

SUBJECT:

FRONT MOTOR & REDUCTION GEAR ASSEMBLY REPLACEMENT
FOR NOISE (LIMITED COVERAGE CAMPAIGN LA9)

Warranty Information:
Model

Op. Code

Operation

Op. Time

Causal Part

Nature
Code

Cause
Code

50DV20R0

Front Motor Gear
Assembly Replacement
& Wheel Alignment

5.8 M/H

44000-18FA1

Q51

ZZ7

IONIQ 5
(NEA EV)
IONIQ 9
(ME1A EV)

NOTE 1: Submit claim on Claim Entry Screen as “Campaign” type.
NOTE 2: 10 /100,000 High Voltage Warranty for original owners and is transferable to subsequent
owners, applies to the part(s) and repair procedure(s) outlined in this TSB. Prior to beginning any
repair work, ensure that the part(s) associated with the repair procedure are within the applicable
warranty, observing mileage and Warranty Start Date or date of first use. If the subject part(s) are out
of warranty coverage, the dealer may submit a PA Request for goodwill consideration on a case-bycase basis.
NOTE 3: If any part(s) not subject to this TSB are found in need of replacement while performing the
repair procedure, and the affected part(s) are still under warranty, the dealer may submit a separate
claim using the same repair order. If the part(s) not subject to this TSB are out of warranty coverage,
the dealer has the option to submit a PA Request for goodwill consideration on a case-by-case basis.
NOTE 4: This TSB includes repair validation photos. Op times include VIN, mileage, and repair
validation photo(s) as outlined in the Digital Documentation Policy.
NOTE 5: The incident parts are subject to callback through the normal Warranty Technical Center
(WTC) parts return process. Claim is subject to debit if the part is not returned.

Service Procedure:

DIGITAL DOCUMENTATION
This TSB includes repair validation photos. Refer to the latest Warranty Digital Documentation
Policy for requirements.

NOTICE
Applying the recommended torque to all fasteners is essential to reduce potential issues from
occurring after the service procedure.

TSB #: 26-01-029H

Page 3 of 5

SUBJECT:

1.

FRONT MOTOR & REDUCTION GEAR ASSEMBLY REPLACEMENT
FOR NOISE (LIMITED COVERAGE CAMPAIGN LA9)

Replace the front motor and reduction gear
assembly (A) by referring to the shop manual:
•

2.

Motor and Reduction Gear System >
Front Motor and Reduction Gear
System > Front Motor and Reduction
Gear Assembly > Removal /
Installation

A

DIGITAL
DOCUMENTATION

Using the STUI camera function, take a
photo of the newly installed Front Motor
& Reduction Gear Assembly clearly
showing the serial number.
Upload the photo to STUI.
NOTE: If the STUI camera function is
NOT used, write the last 6 digits of the
VIN and date of repair on a piece of
paper to include in the photo.

3.

Reinstall all remaining parts in reverse order of
the removal process.

4.

Fill coolant, perform air bleeding, and complete
Initialization of Automatic Resolver Offset
Calibration as detailed in the shop manual:
•

Motor and Reduction Gear System >
Front Motor and Reduction Gear
System > Front Motor and Reduction
Gear Assembly > Installation

TSB #: 26-01-029H

Page 4 of 5

SUBJECT:

5.

FRONT MOTOR & REDUCTION GEAR ASSEMBLY REPLACEMENT
FOR NOISE (LIMITED COVERAGE CAMPAIGN LA9)

Perform wheel alignment by referring to the
shop manual:
•

Suspension System > Tires/Wheels >
Alignment > Inspection

6.

Verify normal vehicle operation, and that there
is NO high frequency noise during low speed
deceleration.

7.

The service procedure is now complete.

TSB #: 26-01-029H

Page 5 of 5