Service Campaign 991– Underbody Corrosion Preventative Service - Dealer
Best Practice
April 12, 2023

Updates to this Document
• Campaign 991: Underbody Corrosion Preventative Service Procedure (TSB 23-01-034H)

Date
04/12/2023

Campaign Description:

In certain areas, a vehicle’s underbody may exhibit corrosion due to road-salt usage. As a preventative measure, a cavity
wax coating is applied to the internal surfaces of underbody components and an undercoating spray is applied to exterior
surfaces of specified underbody components. The service campaign describes the procedure to perform this preventative
service on certain 2009-2014MY Genesis Sedan (BH), 2011-2016MY Equus (VI), and 2010-2016MY Genesis Coupe (BK)
vehicles.

Applicable Vehicles:
•

•
•

2009-14MY Genesis Sedan (BH) vehicles currently or ever registered in a Salt Belt State produced from 04/30/2008
– 02/24/2016.
2011-16MY Equus (VI) vehicles currently or ever registered in a Salt Belt State produced from 07/13/2010 –
12/03/2015.
2010-16MY Genesis Coupe (BK) vehicles currently or ever registered in a Salt Belt State produced from 12/18/2008
– 06/11/2016.

Salt Belt Areas include:
Connecticut, Delaware, Illinois, Indiana, Iowa, Kentucky, Maine, Maryland, Massachusetts, Michigan, Minnesota, Missouri,
New Hampshire, New Jersey, New York, Ohio, Pennsylvania, Rhode Island, Vermont, Virginia, West Virginia, Wisconsin, and
the District of Columbia
Please note all dealers must perform this service campaign if vehicle comes in with an open campaign, even if
vehicle is no longer located in the listed states above.
•

Additional Information:
There are circumstances under which vehicles that are not currently registered or have never been registered in a
“salt belt” state may be eligible for this service campaign. These circumstances include:
• Vehicles that were relocated into a “salt belt” area and/or
• Vehicles registered in a “non-salt belt” state and driven in a “salt belt” area
If it is determined that an owner of a vehicle within the affected VIN production date range relocates or has operated
their vehicle in a “salt belt” area, the dealer should perform this procedure at no cost to the customer. The dealer
must submit a Prior Approval request before starting repairs.

Remedy Repair:

Apply undercoating spray and cavity wax to area indicated in TSB 23-01-034H (or latest version) to help prevent underbody
corrosion caused by road-salt usage in certain areas.
• Labor time: 1.1 M/H
• Recommended Technician Training Level: Hyundai Certified Technician or Higher
Recommendation:
Prior to repair, it is recommended to allow the vehicle to cool at least four hours before starting the service procedure. Parking
the vehicle at the stall overnight is highly recommended to avoid a need for a cool down period and improve work efficiency.

Recommended Alternative Transportation: Please provide the customer with an SRC (Service Rental Car) if
requested.

Customer Talk Tracks

“Today we are going to perform a procedure to the underbody of your vehicle to help prevent corrosion to the chassis, brake
and suspension components from road salt commonly used to de-ice the road surfaces. If the salt is not removed by regular
car washes during the winter season, it can also eat away at the paint leaving the metal components without protection from
corrosion.”
Recommendations/tips:
• Get regular car washes. Spray your car down at least once a week in snowy conditions and visit a car wash that
targets the undercarriage at least once a month and after winter storms. It may help to view this expense as a highly
recommended preventative vehicle maintenance, as it could save you money on costly damages later.
• If your vehicle is over 8 years old, it needs some extra TLC. Several years of exposure to winter road salts can take its
toll. According to the National Highway Traffic Safety Administration (NHTSA), vehicle models made in 2007 and
earlier are especially susceptible to brake pipe corrosion due to salt exposure. Bring your vehicle in regularly to inspect
for corrosion and take notice of how your brake pedal feels in cold weather. Any changes could indicate a leak in the
brake system.
• Use a synthetic wax to provide a protective barrier from harsh salt.
• Once spring arrives, thoroughly detail the exterior so that salt doesn’t sit on the surface.
Prep for winter weather early next season, making sure to pay special attention to any chips or scrapes in the paint, as
those areas will be more susceptible to rust.

Warranty Information:

This service campaign pays 1.1 M/H for underbody rust inspection and preventive service (cavity wax/undercoating
application).
• All claims must have STUI pictures uploaded as directed in TSB 23-01-034H (or latest version). Claims with illegible,
incomplete, missing, or incorrect STUI pictures are subject to debit.
• Each labor operation will reimburse 1 can of undercoat spray & 1 can of cavity wax.
Please refer to TSB 23-01-034H (or latest version) for additional details.

STUI Picture Requirement:

After undercoating is applied, ensure clear STUI photos of the specific areas noted below with the last 6 digits of the VIN
and the date of repair are included & uploaded. Refer to TSB 23-01-034H (or latest version).
STUI pictures that do not have the last 6 digits of the VIN, date of repair, and undercoating applied in the specific
areas are not acceptable.
Acceptable STUI photos of the undercoating applied in the specific areas:

Parts Information: Please refer to TSB 23-01-034H (or latest version) for the latest parts information.

Owner Notification:

Owners of the subject vehicles are expected to be notified via First Class Mail in May 2023 or sooner.

Best Practice Checklist
Reservation: Did you check WebDCS to verify if the vehicle was originally registered in any of the listed salt-belt
states and for additional campaigns or recalls? Did you check for any declined services from previous visits?
Yes
No
Readiness: Does your dealership have the recommended tools and equipment to complete the procedure mentioned
in TSB 23-01-034H (or latest version)? The wax cavity spray gun & inside nozzle from previous corrosion
campaigns can be used.
Yes – Ensure the customer has an appointment.
No – Order the required tools and equipment if necessary and ensure the customer’s appointment is
scheduled after the arrival ETA of all necessary tools and equipment.
Readiness: Was it determined that an owner of a vehicle within the affected VIN production date range relocated or
has operated their vehicle in a “salt belt” area?
Yes – The dealer should perform the campaign procedure and contact Prior Approval Center before
starting repairs.

No – Do not perform the procedure outlined in TSB 23-01-034H (or latest version).
Reception: Did you get permission from the customer to perform the eMPI and review all declined services and
additional recommended maintenance?
Yes
No
Reception: Did you explain to the customer the expected repair time and an expectation for a status update?
Yes
No
Reception: Did you explain to customer the warranty requirements?
Yes
No
Reception: Did you offer the customer Alternative Transportation if requested?
Yes
No
Repair: Did you allow the vehicle to cool 4 hours, preferably overnight, before performing the procedure?
Yes
No
Repair: Did you review the results of the eMPI with the customer and provide the customer with estimates for any
recommendations and also an adjusted promise time based on any additional services?
Yes
No
Repair: Is the Technician performing the procedure a Hyundai Certified Technician or higher?
Yes
No
Repair: Were STUI pictures taken of the black undercoating applied in the specified areas (front sub-frame, rear subframe, Left/right rear lower control arms, left/right rear upper control arms (BK only) with the last 6 digits of the VIN and
date of repair per TSB 23-01-034H (or latest version)?
Yes
No
Return: Did you get the customer’s signature on all warranty lines in addition to the final RO?
Yes
No

Contact Reference:

Please see the following page for commonly referred to contacts.
Thank you for your prompt attention to this important matter and continued commitment to Hyundai customers.

Key Contact Information
Dealer Support

Contact Information

Description

Parts

[email protected]
1-800-545-4515

Parts ordering hotline

Techline

1‐800‐325‐6604

Warranty HELPREP 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

Xtime Technical Support

[email protected]
1‐866‐984‐6355

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

AutoLoop Technical Support

[email protected]
1-877-850-2010

CDK Technical Support

Customer Support

Assistance with Car Care Scheduling:
• Appointment / Shop Capacity Management / Campaign
Integration / Operation Codes
https://serviceconnect.support.cdk. Assistance with Car Care Scheduling:
com/
• 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
Hyundai Customer Care Center
(General Questions)
Hyundai Roadside Assistance

www.hyundaiusa.com/recall

Updated information related to the specific recall or service
campaign
Customers general questions, non‐campaign related

1‐800‐633‐5151
1-800-243-7766

Name
Campaign Central
Car Care Scheduling (Xtime) Tutorials
Car Care Scheduling (Xtime) - Recall
Appointment Notification

Parts – Campaign Parts
Management (CPM) Procedure
Service Rental Car (SRC) Program

Technical Service Bulletin (TSB)
Uncompleted Campaign VIN Listing
Recall Campaign Website
NHTSA Website

Hyundai Roadside Assistance
Key Reference Information
Source

Consolidated repository of recall and service campaign dealer best practices. Located on the service
tab homepage in www.HyundaiDealer.com
www.HyundaiDealer.com > Service > Dealer Resources > Documents Library > Car Care Scheduling
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
www.HyundaiDealer.com > Service tab > Hyundai Tech Info
A listing of vehicles is located on WEBDCS > SERVICE tab > select UNCOMPLETED CAMPAIGN VIN
LISTING
– Dealer Stock (New, SRC, CPO, etc.) and Retailed.
www.hyundaiusa.com/recall
www.safercar.gov

Appendix
Historical Reference
• Campaign 991: Underbody Corrosion Preventative Service Procedure (TSB 23-01-034H)

Date
04/12/2023