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NHTSA ID Number: 11021979

Manufacturer Communication Number: 25-01-054H DN

TSB/Document Date: 2025-08-19


Summary

Certain 2017-2019MY Elantra (AD, ADA) vehicles equipped with 2.0L ATK engines may be unable to complete diagnosis of the OBD-II Fuel System Readiness Monitor. This bulletin provides instructions to perform a software update for the Engine Control Module (ECM) to revise control logic.


Service Campaign 968: ECM Software Update – OBD-II Fuel System Readiness Monitor
Diagnosis – Dealer Notification
August 14, 2025
Document Topic
• Revised Technical Service Bulletin (TSB) 25-01-054H published on HyundaieBay logo Tech Info;
supersedes TSB 21-01-064H with the following revision; see TSB for specific details
• In this document (updates in yellow)
o Revised TSB # 25-01-054H (pgs. 1-2)
o Revised Warranty Information (pg. 2)
o Updated Q&A (Q3/A3, Q4/A4, A6) (pg.4)

Date
08/14/2025

Campaign Description
Certain 2017-2019MY Elantra (AD, ADA) vehicles equipped with 2.0L ATK engines may be unable to complete
diagnosis of the OBD-II Fuel System Readiness Monitor. This bulletin provides instructions to perform a
software update for the Engine Control Module (ECM) to revise control logic.
The California Air Resources Board has determined that these vehicles may be releasing air pollutants which
exceed Federal and California standards.

Affected Vehicles (Certain)

2017-2029MY Elantra (AD, ADA) equipped with 2.0L ATK engines

Repair Process/Information
Follow the service procedure in TSB 25-01-054H (or latest version) to perform a software update for the Engine
Control Module (ECM) to revise control logic.
• Technician Certification Requirements: HyundaieBay logo Certified (or higher)

GDS Information

System Selection: Engine
Event #688 – AD(A) 2.0 ATK OBD Fuel System Readiness Diagnosis Improvement

Recommended Alternative Transportation
A Service Rental Vehicle (SRC) should be provided to customers if their vehicle is required to be kept overnight.
In addition, an SRC may be necessary based on the repair procedure duration and any other additional work on
the vehicle that may need to be addressed during the customer’s visit. If an SRC is not available, other options
such as a 3rd Party Rental or Rideshare may be provided.

Other Notes/Recommendations



All vehicles require the application of an emissions sticker under the hood and adjacent to the factory
emissions label during service.
If a customer arrives at the dealer with no appointment scheduled, it is recommended the dealer offer
alternative transportation to the customer.
If a customer schedules an appointment in advance, ensure the appropriate tools and equipment are on
hand to perform any related repairs.
Be honest with customers regarding wait times. Update the customer if the original estimated wait time
is exceeded.

1

Warranty Information
Per TSB 25-01-054H (or latest version), this service campaign pays the following:
• Labor:
o 0.3 M/H for ECU Software ROM ID Check & Campaign Sticker Application (No update
required)
o 0.4 M/H for ECU Software Update and Campaign Sticker Application

Parts Information


Refer to TSB 25-01-054H (or latest version) for the latest parts information.

Customer Talk Tracks
1.

For Customers with an appointment, but the campaign is not part of the originally scheduled services:
“I see that your vehicle has an open service campaign that we would like to take care of for you while you
are here today. This service campaign requires a software update to the Engine Control Module (ECM) to
revise control logic. This service, of course, will be provided at no charge to you and, if necessary, we would
like to offer you alternative transportation while we repair your vehicle. We apologize for the
inconvenience.”

2. For Walk-In Customers: “During your visit today, I checked your vehicle for any open campaigns or recalls
and found that your vehicle has an open campaign. This service campaign requires a software update to
the Engine Control Module (ECM) to revise control logic. This service, of course, will be provided at no
charge to you and, if necessary, we would like to offer you alternative transportation while we repair your
vehicle. We apologize for the inconvenience.”
3. For Customers over the phone: “While I have you on the line and verifying your current appointment, I ran
your VIN and found that your vehicle has an open campaign. This service campaign requires a software
update to the Engine Control Module (ECM) to revise control logic . If time permits, we can address this
campaign during your current appointment, and it will be at no cost to you. Should you need it, we can
arrange for alternate transportation since this may prolong the stay of your vehicle in for service. We
apologize for the inconvenience.”
2

Best Practice Checklist
Reservation: Did you check WebDCS for additional campaigns or recalls? Did you check for any declined
services from previous visits?

Yes
No – Please ensure all open campaign(s)/recall(s) are identified and completed by the dealership.
Also, ask the customer if they would like to have any of the previously declined services
performed.

Readiness: Are the GDS’s, campaign emission stickers and proof of correction card (if applicable) readily
available to perform repairs?
 Yes
 No – It is highly recommended to order the necessary tools/parts ahead of time to save time
perform repair efficiently for the optimal customer experience. Please place for stickers & cards (if
applicable) from your facing PDC .
Reception: Did the customer provide authorization to perform repairs?
 Yes
 No – Customer must be consulted and provide approval before proceeding with any services on
their vehicle.
Did you explain to the customer the expected repair time based on the repair and set the expectation for
a status update?
 Yes
 No – Customer should be given an estimated time of when their vehicle is completed so the
customer can plan the rest of their day away from the dealership.
Did you offer the customer Alternative Transportation if requested?
 Yes
 No – Customer should be offered alternative transportation if their vehicle needs to be kept
overnight. In addition, an SRC may be required based on the duration of the repair procedure and
any other additional work on the vehicle that may need to be addressed during the customer’s
visit.
Repair: Does the Technician meet the recommended training requirements (Certified or above) to
complete this campaign?
 Yes
 No – Please ensure a technician with the recommended training level requirement(s) completes
this repair.
Return: Did you have the customer’s signature on all warranty lines in addition to the final RO?
 Yes
 No – Customer must sign the final invoice upon delivering the vehicle back to the customer.

3

Customer FAQs
Q1: What is the issue?
A1: Certain 2017-2019MY Elantra (AD, ADA) vehicles equipped with 2.0L ATK engines may be unable to complete
diagnosis of the OBD-II Fuel System Readiness Monitor. This bulletin provides instructions to perform a
software update for the Engine Control Module (ECM) to revise control logic.
Q2: What are the affected vehicles?
A2: The following vehicles include the following:
• Certain 2017-2029MY Elantra (AD, ADA) equipped with 2.0L ATK engines
Q3: Why is this campaign being provided to me?
A3: These vehicles may be releasing air pollutants which exceed Federal and California standards. These
standards were established to protect your health and welfare from the dangers of air pollution.
Q4: Are you a California registered owner or one from Colorado, Connecticut, Delaware, Maine, Maryland,
Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont or Washington?
A4: Because your state has adopted the California emissions regulation, your HyundaieBay logo dealer will also provide a
“Proof of Correction” certificate as verification that this repair has been completed. It’s critical that it is retained
for your records and to be presented when registering your vehicle, if requested.
Q5: What will be done during service at the dealer?
A5: A software update for the emissions logic within the Engine Control Module (ECM) for vehicles equipped
with the (2.4L GDI) Theta II engine to improve combustion and fuel trim adaptations will be completed at no
cost to the customer.
Q6: When will the affected customer(s) be notified of this campaign?
A6: Customers were previously notified via First Class Mail in November 2021.

Contact Reference
Please see the list below for commonly referred to contacts. Thank you for your prompt attention to this
important emissions matter and continued commitment to HyundaieBay logo customers.

4

Key Contact Information
Dealer Support
Parts

Contact Information

Description

[email protected]

Parts ordering hotline

1-800-545-4515
Techline

1‐800‐325‐6604

Warranty HELP Line

1‐877‐446‐2922

Vehicle Technical Support for HyundaieBay logo Dealer
Technicians
Warranty Claim questions for HyundaieBay logo Dealers

Warranty Prior Approval (PA) Center

[email protected]

Warranty Prior Approval (PA) Center for HyundaieBay logo Dealers

Xtime Technical Support

[email protected]
1‐866‐984‐6355

Assistance with Car Care Scheduling:
• Appointment / Shop Capacity Management / Campaign
Integration / Operation Codes

[email protected]

Assistance with Car Care Scheduling:

AutoLoop Technical Support

1-877-850-2010

CDK Technical Support

Appointment / Shop Capacity Management / Campaign
Integration / Operation Codes

https://serviceconnect.support.cdk.com/ Assistance with Car Care Scheduling:


Customer Support

Appointment / Shop Capacity Management / Campaign
Integration / Operation Codes

Contact Information

Description

HyundaieBay logo Customer Care Center
(Recall /Campaign Questions)

1‐855‐671‐3059

Customer questions or concerns related to recall or service
campaigns

HyundaieBay logo Recall /Campaign Website

www.hyundaiusa.com/recall

Updated information related to the specific recall or service
campaign

HyundaieBay logo Customer Care
Center(GeneralQuestions)

1‐800‐633‐5151

HyundaieBay logo Roadside Assistance

1-800-243-7766

Customers general questions, non‐campaign related
HyundaieBay logo Roadside Assistance
Key Reference Information

Name

Source

Campaign Central

Consolidated repository of recall and service campaign dealer best practices. Located on the service tab
homepage in www.HyundaiDealer.com

Car Care Scheduling (Xtime) –
Tutorials
Car Care Scheduling (Xtime) – Recall
Appointment Notification

www.HyundaiDealer.com > Service > Dealer Resources > DocumentsLibrary > Car Care Scheduling

Parts – Campaign Parts Management
(CPM) Procedure

As applicable; www.HyundaiDealer.com > Parts > Documents Library > Campaign Parts Management

Service Rental Car (SRC) Program

1.
2.
3.
4.
5.

Log into Xtime
Under the menu at the top left, select ‘CONFIGURE’
Under the dealership tab, click “EMAIL COMMUNICATION”
Slide the toggle to “ADVANCED”
Populate as many e-mails as desired in the “PARTS DESK EMAIL FIELD”

SRC Documentation: www.HyundaiDealer.com > Service tab > Documents Library > Service Rental Car
TSD: www.HyundaiDealer.com > Service tab > SRC Fleet Mgmt Software
Insurance: www.HyundaiDealer.com > Service tab > SRC Insurance

Technical Service Bulletin (TSB)

www.HyundaiDealer.com > Service tab > HyundaieBay logo Tech Info

Uncompleted Campaign VIN Listing

A listing of vehicles is located on WEBDCS > SERVICE tab > select UNCOMPLETED CAMPAIGN VIN LISTING
– Dealer Stock (New, SRC, CPO, etc.) and Retailed.

Recall Campaign Website

www.hyundaiusa.com/recall

NHTSA Website

www.safercar.gov

5

Appendix
Document Topic
• Technical Service Bulletin (TSB) 25-01-054H published on HyundaieBay logo Tech Info;
supersedes TSB 21-01-064H with the following revision:
o Additional Op. Code (Page 2)
o Updated procedure
o Updated ROM IDs for 2019MY Elantra (AD, ADA) vehicles without
immobilizers (Page 3)

6

Date
11/16/2021

1

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TSB/Document ID: 25-01-054H DN

Replacement Service Bulletin Number:

MFR Communication Date: 2025-08-15

MFR Internal Campaign ID/Software Version: 968

Communication Type: Service Campaign

NHTSA Components: ELECTRICAL SYSTEM

MFR Component System:

MFR Component Subsystem:


Previous TSB

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