TECHNICAL INSTRUCTIONS
FOR
LIMITED SERVICE CAMPAIGN GLM
REAR WHEEL ARCH CORROSION
CERTAIN 2014 –2015 MODEL YEAR IS
CERTAIN 2015 MODEL YEAR RC350/RC-F

The repair quality of covered vehicles is extremely important to Lexus. All dealership technicians performing
this repair are required to successfully complete the most current version of the E-Learning course “Safety
Recall and Service Campaign Essentials”. To ensure that all vehicles have the repair performed correctly,
technicians performing this repair are required to currently hold at least one of the following certification
levels:




Senior Technician
Master Technician
Diagnostic Specialist

Always check which technicians can perform the recall remedy by logging on to https://LCTPReports.com. It
is the dealership’s responsibility to select technicians with the above certification level or greater to perform
this repair. Carefully review your resources, the technician skill level, and ability before assigning
technicians to this repair. It is important to consider technician days off and vacation schedules to ensure
there are properly trained technicians available to perform this repair at all times.

I.

OPERATION FLOW CHART

The flow chart is for reference only. DO NOT use it in place of the full technical instructions. Follow ALL steps
as outlined in the full technical instructions to confirm the campaign is completed correctly.

Check the TIS Vehicle Inquiry System.

Not Covered

No further action required.

Corrosion
Or
Paint Blister

Repair rear wheel arch corrosion
condition.

Okay

Campaign Complete

Covered
Inspect RH and LH rear wheel arches
for corrosion or paint blistering.
Okay

Inspect RH and LH rear wheel arch
body sealant for misapplication.

Apply Corrosion Resistant Compound
to wheel arch cavity.

Campaign Complete

II. BACKGROUND
In the subject vehicles, the inner portion of the rear fender arch may experience water intrusion due to improper
sealer application. If this occurs, corrosion can form causing rust spots, blistering, or perforation of the rear fender
arch. This condition is most likely to occur in areas with heavy road salt application.

2

III. IDENTIFICATION OF AFFECTED VEHICLES



Check the TIS Vehicle Inquiry System to confirm the VIN is involved in this Safety Recall, and that the
campaign has not already been completed prior to dealer shipment or by another dealer.
TMS warranty will not reimburse dealers for repairs conducted on vehicles that are not affected or
were completed by another dealer.

IV. PREPARATION
A. PARTS
All applicable vehicles will require the parts in the table below
B. MATERIALS
This kit contains enough material to perform the wax repair on 14 wheel arches. It is anticipated that
about ½ of the arches will have misapplied sealant. Only order kits as needed because supply is
extremely limited.
Part Number
04006-35253

Description
Wheel Arch Corrosion Kit

Qty
1 kit per 14 arches sprayed

Wax (NOX-RUST 712AM Aerosol)
Nozzle (for Wax)
Safety Pin
Stainless Steel Trace Wire
Body Sealant (Super X Black No. 8008)




Protective tape
Marker Pen



1
5
1
1
1

Protective Gloves

C. TOOLS & EQUIPMENT



Standard hand tools
Safety Glasses




Torque wrench
Stopwatch



Protective Gloves

CAMPAIGN TOOL – This scale was provided to the dealership at the launch of GLM. This scale is necessary
when performing this repair.
Image

Name

Quantity

Wax Application
Confirmation Scale

1

3

V. REAR WHEEL ARCH INSPECTION
Wheel Arch Inspection Procedure Video
A. INSPECT THE WHEEL ARCH PAINTED SURFACE
1.

LIFT AND REMOVE REAR WHEELS

2.

CLEAN THE RH AND LH REAR WHEEL ARCH
a) Clean both the interior and exterior painted surface of the RH
and LH rear wheel arches in the highlighted area prior to
performing the paint area inspection.
Ensure you clean the wheel arch well,
especially the body sealant on the inner
portion of the wheel well. This must be
clean to perform the body sealant
inspection.

Inside of Arch

3. INSPECT RH AND LH REAR WHEEL ARCH PAINT SURFACES

Corrosion Damage

30mm

a) Inspect the first 30 mm of the exterior painted RH and LH
wheel arch surface for paint blistering, bubbling or corrosion
damage.
b) Inspect the first 25mm of the interior wheel arch painted
surface for paint blistering, bubbling or corrosion damage.

OK: CONTINUE WITH SEALANT INSPECTION
NG: ARCH REQUIRES BODY REPAIRS
Inside of Arch Inspection

25mm

Note:
 It is anticipated that very few vehicle will have
corrosion damage.
 If corrosion damage is found body repair will be
required. Only the wheel arch displaying corrossion
damage should be repaired.

4

B. INSPECT THE WHEEL ARCH BODY SEALANT
It is critical that this inspection is performed properly, ensure to follow all steps and
inspect the entire rear wheel arch body sealer. It is possible for the seam sealer to be
misapplied in multiple locations on one arch.
1. SEALANT INSPECTION AREA
a) Inspect the sealant along the inner wheel arch as shown by
the gray area.
Note: The two areas at the end of the wheel arch circled in
red do not have to be inspected. This area has a different
sealant that is not affected by this issue.
Area not requiring inspection.

2. INSPECT THE WHEEL ARCH BODY SEALANT APPLIED INSIDE THE WHEEL WELL
Note: Take your time when inspecting the wheel arch, it can be very difficult to find misapplied sealant.
The sealant was sprayed with paint and is the same color as the body.
a) Using a lamp visually inspect the sealant application along the inner wheel well hemming of both wheel arches
and ensure it as sealed the entire surface.
b) If sealant misapplication is seen, mark that area with a piece of tape.

OK

NG

Sample of NG Wheel Arch
Sealer w/Hole

3. REINSPECT THE WHEEL ARCH USING YOUR FINGER NAIL
a) In some cases it will be hard to see if the sealer is misapplied, in this case gently use your finger nail to see if it
can catch an exposed edge of the wheel arch hem.
b) If an edge is found mark the area with a piece of tape.

Sample of NG Wheel Arch
Sealer w/Edge Exposed

5

4. WHEEL ARCH SEALANT JUDGEMENT

OK (0 Misapplied Locations Found): NO WAX APPLICATION REQUIRED
NG (1 or more Misapplied Locations Found): WAX APPLICATION REQUIRDED
Note: Each rear wheel arch should be inspected independently. It is possible to have 0, 1, or 2
arches that require wax application.

VI. WHEEL ARCH WAX APPLICATION PROCESS
A. WAX APPLICATION PREPARATION
Wheel Arch Wax Application Preparation Video
1. COVER DEFECTIVE HOLES
a) Using masking tape, seal all holes in the sealant.

Note:
 Masking tape will plug the hole and stop wax from
leaking during wax application.
 If leaking wax is found during application there is
another hole, locate the hole and apply tape.

2. PROTECT REAR BUMPER
a) Apply masking paper or cover to bumper to avoid scratching
the painted surface.
b) Adhere the wax application pattern paper (In Appendix) onto
the rear bumper as shown.

3. WHEEL ARCH PREPARATION
a) Using the provided safety pin, pierce a hole in the sealant.
b) Move the needle in and out several times to ensure the hole
does not close up after removing the safety pin.

6

4. CONFIRM WHEEL ARCH PATHWAY
a) Using the provided stainless steel wire, insert the wire through
the pierced hole in the sealant.
b) Insert the wire into the wheel arch and confirm the path is
clear for the spray wand.
Note: In order to get the fully inserted it may require
moving the stainless steel wire in and out repeatedly.
c) The stainless steel wire should be able to be inserted a
minimum of 500mm ( 19.6 in).
Stainless steel wire length
Wheel arch IS series
Wheel arch RC series

About 630mm
About 612mm
About 636mm

B. WAX APPLICATION
Wheel Arch Wax Application Video
1. CONFIRM REMAINING WAX AMOUNT
a) Measure the weight of the wax can.
b) Note the starting wax amount.
Minimum Can Weight: 175 grams
Note: The can must weight 175 grams or more in order to
have enough pressure and material to apply the wax in the
wheel arch. If less than 175 grams dispose of the wax can in
accordance with your local regulations.

2. INSERT NOZZLE FOR WAX
a) Carefully insert the nozzle completely into the wheel well arch.
The nozzle is extremely easy to bend, if the
nozzle is bent it MUST be replaced because
it will restrict the flow of wax during the
application process.
Wax Nozzle
Wheel arch IS series
Wheel arch RC series

About 850mm
About 612mm
About 636mm

3. APPLY WAX
a) Connect nozzle to wax can.
b) After confirming the nozzle is completely inserted into the
wheel arch, pull it out 10mm. (this is location number 1)
c) Apply wax for 15 seconds at each of the corresponding
locations shown.

7

4. MEASURE APPLIED AMOUNT
a) Measure the weight of the wax can.
b) Note the ending wax can weight.
c) Subtract the original weight by the remaining weight of the can
and ensure it is greater than 11 grams.
Sample: 541 grams – 523 grams = 18 grams
Note: If the amount applied is less than 11 grams repeat
the procedure.
d) Repeat the wax application process on the other arch if
required based on inspection result.
5. CONFIRM NO WAX OVERSPRAY
a) Confirm that during the application process no wax over
sprayed onto the following key components:
1)
2)
3)
4)
5)

In wheel arch
Gap between bumper and quarter panel
Gap between rocker panel and quarter panel
Dripping on floor
Brake disc and hub bolts

b) If wax over spray is found on any parts clean and degrease
the parts.
C. APPLY BODY SEALANT
1. PREPARE FOR SEALANT APPLICATION
a) Peel off all masking tape used to seal defect holes in sealant.
b) Degrease area around defective holes where tap was
removed and around the wax nozzle entrance hole.

c) Apply tape around the defective hole as shown.

8

2. APPLY SEALANT
a) Using the supplied Super-X Body Sealant and the provided spatula, apply sealant to the defective hole as
shown.
b) Use the spatula to smooth out the sealant and ensure that it remains inside the wheel well arch.
Note: If sealant comes into contact with bumper or other undesirable surfaces wipe off immediately
with absorbent cotton.

c) Immediately remove the masking tape after applying sealant.
d) Let the body sealant set for 10 minutes.
e) Repeat procedure for all defective holes and the wax nozzle
entrance hole.

VII. REASSEMBLE VEHICLE
1. REMOVE MASKING AND TEMPLATE FROM REAR BUMPER
2. REINSTALL THE REAR WHEELS
Torque Spec: 76 ft. lbs (103 Nm, 1050 kgf-cm)
3. CONFIRM BODY SEALANT APPLIED IS NOT VISIBLE FROM THE OUTSIDE OF WHEEL WELL

◄ VERIFY REPAIR QUALITY ►
−
−
−

Confirm the wheel arch inspection was performed properly
Confirm the wax application, if required, had the adequate amount of wax applied
Confirm all holes in sealant were resealed using the body sealant
If you have any questions regarding this update, please contact your area representative.

9

APPENDIX PATTERN PAPER (for nozzle movement work)
・This is a measure of the nozzle movement amount
・Copy, use and paste as shown in the figure

Right side

Left side

150mm

150mm

150mm

150mm

10