GROUP

NUMBER

TRANSFER CASE

Technical Service Bulletin
SUBJECT:

DATE

24-TC-001H
MODEL(S)

AUGUST 2024

PALISADE (LX2)

AWD ECU SOFTWARE UPDATE FOR AWD COUPLING NOISE

Description: This bulletin provides instructions to update the all wheel drive engine control unit (AWD
ECU) for certain AWD Palisade (LX2) vehicles to reduce the coupling noises when making turns.
Applicable Vehicles: 2020-24MY AWD Palisade (LX2) produced from 4/10/2019 – 1/10/2024.
GDS Information: 4WD Control
System

Event #

Description

4WD Control

1084

LX2 4WD Coupling Low Speed Turning Noise Improving Update

(*or use a later available event as listed in the GDS applicable System Update screen if one is
available.)
Warranty Information:
Model

Op. Code

Operation

Op.
Time

Casual Part

Nature
Code

Cause
Code

Palisade
(LX2)

95447F08

AWD Update

0.3
M/H

95447-4G550
95447-4G500

I14

ZZ3

NOTE 1: Normal warranty applies.
NOTE 2: Submit claim on Claim Entry Screen as “Warranty” type.
NOTE 3: This TSB includes Repair validation photo(s). Op times include VIN, Mileage, and photo
capture of the “ECU update complete” screen as outlined in the Digital Documentation Policy.
NOTE 4: If a part is found in need of replacement while performing this TSB and the affected part is
still under warranty, submit a separate claim using the same repair order. If the affected part is out of
warranty, submit a Prior Approval request for goodwill consideration prior to performing the work.
ROM ID Information: Event # 1084
System Selection - AWD
Model

System

Palisade (LX2)

AWD

ROM ID

ECU
Part Number

Old

New

95447-4G500

HMLX2000CPL00304

HMLX2000CPL00401

95447-4G550

CLX21-XXXB060XS0

CLX21-XXXB061XS1

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

SUBJECT:

AWD ECU SOFTWARE UPDATE FOR AWD COUPLING NOISE

Service Procedure:

STUI
This TSB includes Repair validation photos. Refer to the latest Warranty Digital Documentation
Policy for requirements.

NOTICE
You must initially perform the GDS ECU update in Auto Mode.
• If the ECU update starts but then fails in Auto Mode, perform the update in Manual Mode
to recover.

NOTICE
GDS Vehicle Battery Low Voltage Warning:
If voltage is below 12 volts per the GDS warning, then select Back and attach a battery charger to
ensure an adequate battery charge for reliable update results. Turn ignition back ON, and then
retry the ECU update again.

i
•
•
•
•
•
•

Information
Verify the vehicle battery has reasonable charge.
Turn off all lamps (do NOT leave head lamp switch in auto mode) and all accessories.
Perform update with the ignition switch in the ON position.
Do NOT disconnect any cables connected to the vehicle or scan tool during update.
Do NOT start the engine during update.
Do NOT turn off the ignition switch during update.

TSB #: 24-DS-XXXH

Page 2 of 3
SUBJECT:

AWD ECU SOFTWARE UPDATE FOR AWD COUPLING NOISE

SUBJECT:

AWD ECU Software Update for AWD Coupling Noise
1.

Perform the ECU update in Auto Mode.
Use the ID Check to verify the ROM ID before
updating the software.

i

Information

Refer to TSB 24-GI-012H, “ECU Update
Procedure for Tablet-Based GDSSmart”, for additional information.
2.

3.

After the ECU update process shows 100%
complete, follow the prompts on the screen to
cycle the ignition OFF for at least 10 seconds
to reset the control unit (certain models may
take up to 30 seconds).

STUI
Take a screenshot of the “ECU Update
Complete” screen using your tablet and
upload to STUI.

4.

Perform an All Systems Fault Code search
and erase DTC history that had incidentally
occurred from the ECU update.

5.

Start the engine to confirm proper operation of
the vehicle.

Manual Mode Information: Event # 1084
ECM Menu
LX2 4WD AWD 95447-4G500

Password
5745

LX2 4WD AWD 95447-4G550

7455

TSB #: 24-DS-XXXH

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SUBJECT: