Service Campaign 9B6: HCU Update for Cruise Control Logic Improvement: Dealer Notification
January 16, 2025
Document Topic
• Technical Service Bulletin (TSB) 25-01-003H published

Date
01/16/2025

Campaign Description
Certain Elantra Hybrid (CN7 HEV) vehicles may exhibit an intermittent condition where the cruise control set
speed could gradually increase when the driver releases the cruise control set speed adjustment switch. The
cruise control set speed is clearly displayed on the instrument cluster, provides visual indication to the driver
when the set speed is adjusted, and remains adjustable by the driver at all times. The cruise control can be
cancelled by normal methods, either by pressing the cruise control switch or depressing the brake pedal.
The California Air Resources Board has determined that these vehicles may be releasing air pollutants which
exceed Federal and California standards.

Affected Vehicles (Certain)
•

2021–2023MY Elantra Hybrid (CN7 HEV) produced from 12/23/2020 – 10/28/2023

Repair Process/Information

Follow the service procedure in TSB 25-01-003H (or latest version) to update the Hybrid Control Unit Low
Voltage DC/DC Converter (HCULDC) system software.
• Technician Certification Requirements: Hyundai Certified (or higher)

GDS Information
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System Selection: HCULDC (Hybrid Control Unit Low Voltage DC/DC Converter)
Event: #1139 - CN7 HEV HCULDC LOGIC IMPROVEMENT
(or use a later available event as listed in the GDS HCULDC Update screen if one is available).

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

Other Notes/Recommendations
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If a customer arrives to the dealer with no appointment scheduled, it is recommended for the dealer to
offer alternative transportation to the customer.
If customer schedules an appointment in advance, ensure the appropriate tools and equipment are on
hand to perform any related repairs.
Always inquire if the customer will have time for an additional service to be performed if they were
originally scheduled for a different service.
All vehicles require the software update to be completed.
Every vehicle needs to have an emission sticker under the hood included after the inspection.
A proof of correction card will also need to be provided to affected vehicles in certain states. Please
refer to TSB for applicable states.
Offer SRC assistance for customers who may be pressed on time.
Be honest with customers on wait times.
If the service is taking longer than expected, update the customer.
If you are unsure of certain processes, don’t guess. Take time to familiarize yourself with the proper

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procedures or ask for help/clarity from your teammates or leadership.
If you see a team member having trouble addressing the concern, ask if you can provide some help.

Warranty Information

Per TSB 25-01-003H (or latest version), this service campaign pays the following:
• Labor:
o 0.4 M/H for HCU software update & campaign sticker installation
• Photos:
o Refer to TSB 25-01-003H for the required pictures to be taken. Includes sample photos.

Parts Information
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Refer to TSB 24-01-003H (or latest version) for the latest parts information.
Campaign Sticker (P/N NP001-SC9B6) – Dealers may order from its facing PDC.
Vehicle Emission – Proof of Correction Card (NP050-09006): Dealers from certain states referred to in
‘Remarks’ section are required to provide a card to customers as proof of the vehicle completing the
campaign.
Remarks
Part Name
Part Number
Figure

9B6
Campaign Sticker

Apply to all vehicles
regardless of state

NP001-SC9B6
NP001-SC9B6

Vehicle Emission
Recall - Proof of
Correction Card

Order only for states:
CA, CO, CT, DE, MA, MD,
ME, NJ, NY, OR, PA, RI, VT,
WA

NP050-09006

Proof of Emissions Card Information

2

1

5

4

3

6

2

8

7

9

1

Applicable States: his step is only for vehicles registered in California, Colorado, Connecticut, Delaware, Maine,
Maryland, Massachusetts, New Jersey, New York, Oregon, Pennsylvania, Rhode Island, Vermont & Washington.

The completed card must be given to the vehicle owner upon Campaign completion.
VEHICLE EMISSION RECALL - PROOF OF CORRECTION CARD
A Vehicle Emission Recall - Proof of Correction card must be filled out for all vehicles registered in California,
Colorado, Connecticut, Delaware, Maine, Maryland, Massachusetts, New Jersey, New York, Oregon,
Pennsylvania, Rhode Island, Vermont and Washington. Residents of these states, who own an affected
vehicle, will be required to possess a Vehicle Emission Recall - Proof of Correction card as evidence of
voluntary service campaign completion, when they apply for vehicle registration renewal.
WHAT TO DO WITH THE CARD:
The Vehicle Emission Recall - Proof of Correction card must be completed by the Dealership’s Service Manager
using a permanent ink pen. A fine point pen is recommended. When filling in the information, copy the
information directly from the vehicle, not from the repair order. ALL INFORMATION MUST BE PRINTED AND
NEAT.
Labeling
1. Enter Vehicle’s License Number
2. Enter “Hyundai”
3. Enter Model Year
4. Enter Model (i.e. Elantra Hybrid)
5. Enter the vehicle’s VIN Number
6. Enter Campaign Number (9B6)
7. Enter Dealership Name
8. Enter Dealership’s Address
NOTE: Enter the physical address, not themailing address (not a P.O. Box)
9. Enter Date of Repair
10. Service Manager Sign Here

Customer Talk Tracks
1.

For Customers with an appointment, but campaign is not part of 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 the vehicle’s Hybrid Control Unit for Cruise Control Logic to be
updated. 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 Customer: “During your visit today, I checked your vehicle for any open campaign or recalls
and found that your vehicle has an open campaign. This service campaign requires the vehicle’s Hybrid
Control Unit for Cruise Control Logic to be updated. 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 see that your vehicle has an open campaign. This service campaign requires the vehicle’s
Hybrid Control Unit for Cruise Control Logic to be updated. If time permits, we can address this campaign
during your current appointment, and it will be at no cost to you. Should you need, we can arrange for
alternate transportation since this may prolong the stay of your vehicle at service. We apologize for the
inconvenience.”

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 customer if he/she would like to have any of the previous declined services performed.
Readiness: Are labels/cards in stock to complete this campaign?
Yes
No – Please order the labels/cards from your corresponding PDC as necessary. If possible, place
order ahead of time if customer has made an appointment in advance.
Reception: Did the customer provide authorization to perform repairs?
Yes
No – Customer must be consulted and provide approval before proceeding with any repairs 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 his/her vehicle is completed so the
customer can plan the rest of their day away from the dealership.
Reception: Did you offer the customer Alternative Transportation if requested?
Yes
No - Customer should be offered alternative transportation if they feel uncomfortable in the
operation of their vehicle prior to the remedy being completed on his/her vehicle and/or if it
needs to be kept overnight. In addition, a SRC may be required based on the recall repair
procedure duration and any other additional work on the vehicle that may need to be addressed
during 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.
Repair: Were the appropriate picture(s) taken as outlined in TSB 25-01-003H (or latest version)?
Yes
No – Please ensure appropriate picture(s) are taken for the dealership to be paid. See TSB for
sample photo(s). Refer to the latest Warranty Digital Documentation Policy for requirements.
Return: Did you get the customer’s signature on all warranty lines in addition to the final RO?
Yes
No – Customer must sign the final invoice upon delivery of the vehicle back to the customer.

Customer FAQs
Q1: What is the issue?
A1: Certain 2021–2023MY Elantra Hybrid (CN7 HEV) vehicles may exhibit an intermittent condition where the
cruise control set speed could gradually increase when the driver releases the cruise control set speed
adjustment switch. The cruise control set speed is clearly displayed on the instrument cluster, provides visual
indication to the driver when the set speed is adjusted, and remains adjustable by the driver at all times. The
cruise control can be cancelled by normal methods, either by pressing the cruise control switch or depressing
the brake pedal.
Q2: What are the affected vehicles?
A2: The following vehicles include certain 2021-2023 model year Elantra Hybrid (CN7 HEV) produced from
12/23/2020 – 10/28/2023.
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 Hyundai 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 if the repair is not completed?
A5: Failure to have this service performed could cause your vehicle to fail an emissions inspection (SMOG
check) when required under state law. It could also be considered a lack of proper maintenance.
Q6: What will be done during service at the dealer?
A6: The dealer will perform a software update to the vehicle’s Hybrid Control Unit Low Voltage DC/DC
Converter (HCULDC) system.
Q7: When will affected customer(s) be notified of this campaign?
A7: Customers will be notified via First Class Mail in February 2025.

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

Key Contact Information
Dealer Support
Parts

Contact Information
[email protected]

Description
Parts ordering hotline

1-800-545-4515
Techline

1‐800‐325‐6604

Warranty HELP Line

1‐877‐446‐2922

Vehicle Technical Support for Hyundai Dealer
Technicians
Warranty Claim questions for Hyundai Dealers

Warranty Prior Approval (PA) Center

[email protected]

Warranty Prior Approval (PA) Center for Hyundai Dealers

[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:

Xtime Technical Support

AutoLoop Technical Support

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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:

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Customer Support

Appointment / Shop Capacity Management / Campaign
Integration / Operation Codes

Contact Information

Description

Hyundai Customer Care Center
(Recall /Campaign Questions)

1‐855‐671‐3059

Customer questions or concerns related to recall or service
campaigns

Hyundai Recall /Campaign Website

www.hyundaiusa.com/recall

Updated information related to the specific recall or service
campaign

Hyundai Customer Care
Center(GeneralQuestions)

1‐800‐633‐5151

Hyundai Roadside Assistance

1-800-243-7766

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

Name
Campaign Central

Source
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 www.HyundaiDealer.com > Service > Dealer Resources > DocumentsLibrary > Car Care Scheduling
Car Care Scheduling (Xtime) - Recall
Appointment Notification

Parts – Campaign Parts Management
(CPM) Procedure
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”

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