GROUP

NUMBER

CAMPAIGN
DATE

Technical Service Bulletin

SUBJECT:

APRIL 2023

23-01-034H
MODEL(S)
Genesis Sedan (BH)
Equus (VI)
Genesis Coupe
(BK)

UNDERBODY CORROSION PREVENTATIVE SERVICE
(SERVICE CAMPAIGN 991)

 IMPORTANT
Dealers must perform this service campaign on all affected vehicles prior to customer retail delivery
and whenever an affected vehicle is in the shop for any maintenance or repair.
Access the “Vehicle Information" screen via WEBDCS to identify open Campaigns.
Description: In some areas, a vehicle’s underbody may exhibit corrosion due to road salt usage. As
a preventative measure, cavity wax coating is applied to the internal surfaces of underbody
components, and an undercoating spray is applied to the bottom exterior surfaces of specified
underbody components. This bulletin describes the procedure to perform this preventative service on
certain Genesis Sedan (BH), Equus (VI), and Genesis Coupe (BK) vehicles.

STUI
This TSB includes STUI pictures as a requirement. Where indicated, please include the last
6 digits of the VIN and date of repair on a piece of paper. Ensure the VIN and date of repair
are clearly visible. Finally, please ensure all captured pictures are completed according to
the steps in this TSB and uploaded to STUI. All claims submitted that have illegible,
incomplete, missing, or incorrect picture(s) are subject to debit.
Applicable Vehicles:
• Certain 2009-2014MY Genesis Sedan (BH) vehicles currently or ever registered in a Salt Belt State produced
from 04/30/2008 – 02/24/2016.
• Certain 2011-2016MY Equus (VI) vehicles currently or ever registered in a Salt Belt State produced from
07/13/2010 – 12/03/2015.
• Certain 2010-2016MY 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.

i

Information

Allow the vehicle to cool at least four hours before performing the procedures in this TSB. Parking
the vehicle at the stall overnight is highly recommended to avoid a need for a cool down period
and improve work efficiency.
Circulate To: General Manager, Service Manager, Parts Manager, Warranty Manager, Service
Advisors, Technicians, Body Shop Manager, Fleet Repair

SUBJECT: UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 991)

Table of Contents
Parts Information: ..................................................................................................2
Recommended Tools and Equipment: ..................................................................4
Warranty Information:............................................................................................4
Service Procedures: ..............................................................................................5
Wax Gun Preparation: .....................................................................5
Remove Debris: ...............................................................................7
Vehicle Preparation: ......................................................................10
Applying Cavity Wax: .....................................................................11
Applying Undercoating: ..................................................................13

 IMPORTANT
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.

Parts Information:

! DANGER
•
•
•

This procedure must be performed in a well-ventilated area.
Must wear safety goggles, face protection, and gloves. Rinse eyes with water or skin
with soap and water. Do not inhale spray. Seek medical attention if needed.
Flammable & pressurized. Do not spray near flames, sparks, or heated areas. Do not
pierce can.

TSB #: 23-01-034H

Page 2 of 16
SUBJECT:

SUBJECT:UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 991)

Part Name

Image / Part Number

Remark
Use about half a can per
vehicle.

Cavity Wax
00232-19034
Use about 1 can per vehicle.

Undercoat Spray

00232-19035
Set air pressure to 70 psi.
If wax output is slow, prime
the gun by blocking the nozzle
with a rag, and spraying the
gun until the flow of wax
increases.

Wax Spray Gun

00232-19036
This is a newly developed
nozzle that has an improved
wax application spray pattern.

“Inside” Nozzle

The pink tubing is to signal the
user to stop spraying when
pulling the nozzle out.
09624-2H101-QQH

This nozzle must be used for
this service procedure.
This nozzle is supplied with
the wax gun.

“Outside” Nozzle

TSB #: 23-01-034H

Page 3 of 16
SUBJECT:

SUBJECT: UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 991)

Recommended Tools and Equipment:
Tool Name
Image

Remark

Air Nozzle

Goggles

Mask

Rubber/Plastic
Mallet
Wire Brush
Bags large enough to cover
wheel/tire assemblies.

Plastic bags

Tape

Warranty Information:
Model

Op Code

Description

Genesis
Sedan (BH)

30D031R0

Equus (VI)

30D031R1

Genesis
Coupe (BK)

30D031R2

UNDER BODY
RUST
INSPECTION AND
PREVENTIVE
SERVICE

Op Time

Causal Part

Nature

Cause

A12

ZZ6

62410-3M102
1.1

62410-3N163
62410-2M111

NOTE 1: Submit Claim on Campaign Claim Entry Screen.
NOTE 2: Each labor operation will reimburse 1 can of undercoat spray and cavity wax.
NOTE 3: If a part that is not covered by this campaign is found in need of replacement while
performing the service campaign 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 the repair.
NOTE 4: All claims must have STUI pictures uploaded as directed on page 17 of the TSB. Claims
with illegible, incomplete, missing, or incorrect STUI pictures are subject to debit.
TSB #: 23-01-034H

Page 4 of 16
SUBJECT:

SUBJECT:UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 991)

Service Procedures:
Wax Gun Preparation:

! DANGER
•
•
•

This procedure must be performed in a well-ventilated area.
Must wear safety goggles, face protection, and gloves. Rinse eyes with water or skin
with soap and water. Do not inhale spray. Seek medical attention if needed.
Flammable & pressurized. Do not spray near flames, sparks, or heated areas. Do not
pierce can.

1.

Unscrew the nut to remove the
compression fitting from the nozzle
assembly that originally comes with the wax
gun.

2.

Attach the compression fitting to the tubing
on the new nozzle assembly.

TSB #: 23-01-034H

Page 5 of 16
SUBJECT:

SUBJECT: UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 991)

3.

Fill wax gun reservoir with cavity wax.
Prime the wax gun by spraying the wax into
a trash bag (or similar) until a light mist is
visibly coming out of the nozzle.

i

Information

Set air supply pressure to 70 psi.
Prime the wax spray gun to increase the flow
when the mist is no longer visible.

To optimize the priming process, cover the
nozzle with a rag and spray until the flow has
increased.

TSB #: 23-01-034H

Page 6 of 16
SUBJECT:

SUBJECT:UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 991)

Remove Debris:

! WARNING
Must wear safety goggles and a face mask during this procedure to protect eyes and prevent
debris from being inhaled.
1.

Lift the vehicle on a hoist.
Apply a plastic vinyl sheet on the floor.
If equipped, remove plastic undercovers to
gain access to the front sub-frame, brake,
and fuel tubes.

2.

Lightly tap the vehicle underbody
components with a rubber or plastic mallet
to loosen and remove debris.
Underbody
• Front sub-frame (A)
• Rear sub-frame (B)
• Rear lower arms (C)
• Rear upper arms (D) (BK model)
Genesis Coupe (BK)

Genesis (BH), Equus (VI)