GROUP

NUMBER

CAMPAIGN

Technical Service Bulletin
SUBJECT:

DATE
JANUARY 2024

24-01-003H
MODEL(S)
Elantra GT (GD)

UNDERBODY CORROSION PREVENTATIVE SERVICE
(SERVICE CAMPAIGN 995)

 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 Elantra GT (GD) vehicles.

Applicable Vehicles (Certain):
• 2013-17MY Elantra GT (GD) vehicles currently or ever registered in a Salt Belt State produced 05/02/2012
to 01/26/2017.
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 995)

Table of Contents
Parts Information: .................................................................................................. 3
Recommended Tools and Equipment: .................................................................. 4
Warranty Information: ........................................................................................... 5
Service Procedures: .............................................................................................. 5
Wax Gun Preparation: ....................................................................................... 5
Remove Debris: ................................................................................................. 7
Vehicle Preparation: ........................................................................................ 11
Applying Cavity Wax:....................................................................................... 12
Applying Undercoating: ................................................................................... 14

 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.

TSB #: 24-01-003H

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SUBJECT:UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

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.
Part Name
Cavity Wax

Image / Part Number

Remark
Use about half a can per vehicle.

00232-19034
Use about 1 can per vehicle.

Undercoat Spray

00232-19035
Set air pressure to 70 psi.
Wax Spray Gun
00232-19036

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.
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
TSB #: 24-01-003H

This nozzle must be used for this
service procedure.
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SUBJECT: UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

This nozzle is supplied with the wax
gun.

“Outside” Nozzle

Required Supplies:
Tool Name

Image

Remark

Air Nozzle

Safety Goggles

Face Mask

Gloves

Rubber/Plastic Mallet
Wire Brush
Bags large enough to cover the tires
and wheels.

Plastic bags

Tape
*Above are standard shop supply.

TSB #: 24-01-003H

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SUBJECT:UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

Warranty Information:
Model
Op Code

Description

Op Time

Causal Part

Nature

Cause

UNDER BODY RUST
INSPECTION AND
0.8 M/H 62400-3X000
A12
ZZ6
PREVENTIVE SERVICE
NOTE 1: Submit claim on Claim Entry Screen as “Campaign” type.
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: This TSB includes Repair validation photos. Op times include VIN, Mileage and Repair
validation photos as outlined in the Digital Documentation Policy.
Elantra GT
(GD)

30D063R0

Service Procedures:

STUI
This TSB includes Repair validation photos. Refer to the latest Warranty Digital Documentation
Policy for requirements.
Wax Gun Preparation:

! DANGER
•
•
•

1.

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

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SUBJECT: UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

2.

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

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 #: 24-01-003H

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SUBJECT:UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

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.

Front Underbody
• Front sub-frame (A)
• Front lower control arms (B)

A

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SUBJECT: UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

B

Rear Underbody
• Coupled torsion beam axle (CTBA)
(C)

C

3.

Use a wire brush to remove debris from:
• Front sub-frame
• Front lower arms
• CTBA

TSB #: 24-01-003H

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SUBJECT:UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

4.

Clean the brake banjo bolt surfaces at all
four calipers and brake tube fasteners using
a wire brush.

5.

Remove the remaining debris by inserting
an air nozzle into the interior cavities of the
sub-frames and control arms. Then blow air
in multiple directions.
Blow air over the exterior surfaces of
components as well.
Use the marked areas as a guideline to
insert the nozzle. Additional access might be
possible to remove more debris.
Front Underbody
• Front sub-frame
• Front lower control arms

TSB #: 24-01-003H

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SUBJECT: UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

Rear Underbody
• CTBA

TSB #: 24-01-003H

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SUBJECT:UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

Vehicle Preparation:
1.

Wrap the brakes with plastic bags to protect
them from overspray. Use tape to secure the
plastic in place. Leave the banjo fitting area
exposed as shown.

! CAUTION
•
•

The brakes must be sufficiently cooled
before it is wrapped.
May cause burns and melt the plastic.

2.

Wrap large plastic bags around the tires and
wheels to protect them from overspray. Use
tape to secure the plastic in place.

3.

Wrap the exhaust areas adjacent to the front
sub-frame and rear CTBA with plastic bags
to protect them from overspray. Use tape to
secure the plastic in place.

! CAUTION
•
•

The exhaust must be sufficiently cooled
before it is wrapped.
May cause burns and melt the plastic.

TSB #: 24-01-003H

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SUBJECT: UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

Applying Cavity Wax:

! 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.

Apply the cavity wax at each of the locations noted in the following steps.
Generally for coating interior surfaces, insert the “inside” nozzle as deeply as possible at each point of
entry. Spray the cavity wax while simultaneously rotating the nozzle, and slowly pulling the nozzle
out. Continue this rotating/pulling motion until the pink tubing is seen coming out of the hole. The
pink tubing indicates there is about 50mm of tubing left until the end of the nozzle. Stop spraying
when the pink tubing is seen.
Generally for coating exterior surfaces, use the “outside” nozzle, provided with the wax gun. Use this
nozzle if the inside nozzle is too large to access the internal cavity of the components.

1.

Use the marked areas as a guideline to
insert the cavity wax nozzle. Additional
access into the internal cavity of the
components might be possible.

Front Underbody
• Front sub-frame

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Rear Underbody
• CTBA

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SUBJECT: UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

Applying Undercoating:

! 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.

Spray the black undercoating on all exterior surfaces of the front sub-frame, front lower arms, rear
CTBA, front and rear brake caliper banjos, brake tube brackets, and fuel & brake tubes. Refer to the
following images.
1.

Front sub-frame

Front lower arms

Rear CTBA

Banjo and brackets at each wheel position

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SUBJECT:UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

2.

Additional brake and fuel tube brackets and
connectors:
A
-

Brake 2-way connector (A)
Brake tube mounts (B)
Rear brake and fuel tubes within the
area marked in red (C)

B

A

B

B

C

B

B

C

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SUBJECT: UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

3.

Remove all the plastic bags.

4.

STUI
Using STUI, take clear photos of the
following components after the undercoating
is applied with the last 6 digits of the VIN and
the date of repair on a piece of paper. See
examples shown to the right.
1.
2.
3.
4.

1. Front sub-frame

Front sub-frame
Rear CTBA
Left front lower control arm
Right front lower control arm

Upload all photos to STUI.
2. Rear CTBA

3. Left front lower control arm

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SUBJECT:UNDERBODY CORROSION PREVENTATIVE SERVICE (SERVICE CAMPAIGN 995)

4. Right front lower control arm

5.

Reinstall the parts in the reverse order of
removal.

6.

The procedure is now complete.

TSB #: 24-01-003H

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