Service Bulletin

23-001

November 10, 2023

Version 3

Product Update: 2016–23 MDX PGM-FI Idle Stop Software Update
Supersedes 23-001 dated January 27, 2023, to revise the information.
AFFECTED VEHICLES
Year

Model

Trim Level

VIN Range

2016–20

MDX

All (except Hybrid)

Check the iN VIN status for eligibility.

2022–23

MDX

All (except Hybrid
& Type S)

Check the iN VIN status for eligibility.

NOTE: No 2021 MDX model year vehicles were produced by Acura.
REVISION SUMMARY
2022–23 MDX vehicles were added to this service bulletin. There are extensive updates and American Honda
recommends you review the entire bulletin.
BACKGROUND
Under certain circumstances, after coming to a stop and the idle stop feature engages, the vehicle may not automatically
restart. Typically, the customer can immediately restart the vehicle by selecting Park and pushing the ENGINE
START/STOP button.
CLIENT NOTIFICATION
Owners of affected vehicles will be sent a notification of this product update.
Do an iN VIN status inquiry to verify eligibility.
Some vehicles affected by this campaign may be in your new or used vehicle inventory. Repair these vehicles before they
are sold.
CORRECTIVE ACTION
Update the PGM-FI Software.
NOTE: The software update will decrease the Idle Stop operating range. As a result, the client may notice reduced idle
stop engagement when their vehicle’s battery is approaching the end of its useful life.

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.
© 2023 American Honda Motor Co., Inc. – All Rights Reserved

Page 1 of 4

WARRANTY CLAIM INFORMATION
2016–20 MDX
Operation
Number

Description

Flat Rate
Time

Defect
Code

Symptom
Code

Template
ID

Failed Part Number

1255G6

Update the PGM-FI
Software (Idle Stop)

0.2 hr

6AX00

UCR00

B23001A

37805-5J6-A75

Operation
Number

Description

Flat Rate
Time

Defect
Code

Symptom
Code

Template
ID

Failed Part Number

1255G6

Update the PGM-FI
Software (Idle Stop)

0.2 hr

6AX00

UFY00

B23001B

37805-5J6-A75

2022–23 MDX

Skill Level: Repair Technician
SOFTWARE INFORMATION
NOTE: Unnecessary or incorrect repairs resulting from a failure to update the diagnostic and reprogramming software are
not covered under warranty
Before beginning the repair, make sure all diagnostic and reprogramming software are updated as listed.
i-HDS Software Version

1.008.020 or later

HDS Software Version

3.105.009 or later

Honda ECU Reprogramming

3.6.0.0

J2534 Rewrite Version

1.00.0034

J2534 Rewrite Database Update

20230414_2492

Update only the systems and software listed in this service bulletin.
Do not use the MongoosePRO VCI for this service bulletin as it is not an American Honda-approved device.
For more information about updating vehicle systems, refer to service bulletin 22-100, Updating Control Units/Modules
with the ECU Reprogramming Application.
Year/Model/Trim

Vehicle System

Program ID (or later)

2016 MDX (2WD) ADV

PGM-FI

37805-5J6-5460

2016 MDX (SH-AWD) ADV

PGM-FI

37805-5J6-5470

2017 MDX (2WD) ADV

PGM-FI

37805-5J6-7030

2017 MDX (SH-AWD) ADV

PGM-FI

37805-5J6-7130

2018 MDX (2WD) ADV

PGM-FI

37805-5BN-3360

2018 MDX (SH-AWD) ADV

PGM-FI

37805-5BN-3380

2019 MDX (2WD) BASE, TECH, ADV

PGM-FI

37805-5BN-A750

2019 MDX (SH-AWD) BASE, TECH,
ADV, A-Spec

PGM-FI

37805-5BN-A950

2020 MDX (2WD) BASE, TECH, ADV

PGM-FI

37805-5BN-A340

2020 MDX (SH-AWD) BASE, TECH,
ADV, A-Spec

PGM-FI

37805-5BN-A540

2022 MDX (2WD) BASE, TECH

PGM-FI

37805-61A-A760
Page 2 of 4

Year/Model/Trim

Vehicle System

Program ID (or later)

2022 MDX (SH-AWD) BASE, TECH,
ADV, A-Spec

PGM-FI

37805-61A-A460

2023 MDX (2WD) BASE, TECH

PGM-FI

37805-61A-A220

2023 MDX (SH-AWD) BASE, TECH,
ADV, A-Spec

PGM-FI

37805-61A-A120

REPAIR PROCEDURE
NOTICE
•

Make sure the 12-volt battery is fully charged before starting an update.

•

Connect a fully charged jumper battery pack, the Midtronics GR8-110P AST in Power Supply Mode or the
Midtronics DCA-A8000 Dynamic Diagnostic Charging System in Reflash Mode, directly to the vehicle’s 12-volt
battery. Leave it connected during the entire procedure to maintain a steady voltage.

•

If the vehicle’s 12-volt battery drops below 10 volts during the update, the programming status bar may not
present accurately, or the Honda ECU Reprogramming application may display an error message.

•

Control module failure caused by the improper completion of a software update (early key cycle, low battery
voltage, disconnected DLC cable, etc.) is not covered by warranty.

•

If an error occurs during the update or the i-HDS freezes, do not disconnect the battery or turn the ignition to
OFF. Reboot the i-HDS and start over.

•

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

•

Warranty reimbursement for technician labor is not allowed for routine checking/installation of any available
software update.

1. Update the PGM-FI software, see service bulletin 22-100 Updating Control Units/Modules with the Honda ECU
Reprogramming Application.
2. Do an ALL DTC CHECK and clear any codes that may have set during the update.

Page 3 of 4

3. California residents only: Fill out a Vehicle Emissions Recall – Proof of Correction certificate and use the code
specified below as the recall number. Have the service consultant give the certificate to your client and advise them to
keep it as proof that the recall was completed. Your client will need to submit this certificate to the DMV only if
requested. If you need more certificates, use reorder number Y0657.
Year/Model

Recall Number

2016–20 MDX

UCR

2022–23 MDX

UFY

2016–20 MDX

2022–23 MDX

Page 4 of 4