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NHTSA ID Number: 10192528

Manufacturer Communication Number: ITB14039B

TSB/Document Date: 2021-05-10


Summary

IF YOU CONFIRM A strong sulfur like odor is coming from the Moonroof drain hoses after a hot soak (after sitting with doors and windows closed). - Odor is most noticeable if the Moonroof shade is left closed while the vehicle sits in the direct sunlight and then after a hot soak the Moonroof shade is opened. NOTE - The Moonroof drain hoses MUST be the cause of the strong sulfur like odor for this bulletin to apply. ACTION Replace the Moonroof drain hoses with the Service Procedure starting on the next page AND deodorize with an ozone generator as needed AND THEN replace in-cabin microfilter. See this bulletin for further detail.


IMPORTANT: When removing the Moonroof drain hose from the exit port, hold the drain hose exit port in
place with a long screw driver to prevent it from being detached from the bulkhead.

Moonroof drain hose
exit port

Hold Moonroof drain hose exit
port here with long screw driver

Figure 14

5. Clean the inside surfaces of each A-pillar and the inside surfaces of each finisher with a clean damp towel.
IMPORTANT: Step 5 will remove any residue left by the Moonroof drain hoses.

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6. Grab the end of the new Moonroof drain hose 1 inch from the end with long curved needle nose pliers.
NOTE: The end of the Moonroof drain hose with the foam wrap on it is the Moonroof Assembly side.
7. Attach the new left front Moonroof drain hose, from the Parts Information table, to the left drain hose exit
fitting and then to the left side Moonroof Assembly drain port.

1 inch

Figure 15

8. Unsnap the passenger side defroster nozzle and
move to the side to gain access to the right side
Moonroof drain hose exit port (Figure 16).

Gently unsnap the
side defroster nozzle

9. Perform steps 4 through 7 on the right side Moonroof
drain hose and then proceed to Step 10.
NOTE: When removing the Moonroof drain hose
from the drain hose exit port, hold the drain hose exit
port in place with a long screw driver to prevent it
from being detached from the bulkhead.
Figure 16

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10. Before taping the Moonroof drain hoses in place, center the hose(s) over the clips so that the hose(s) do
not kink and create a blockage (example of kink shown in Figure 17).

Kink in hose
Figure 17
11. Tape the new hoses to the 4 body clips (8 total) on the left and right A-pillars that they were removed from
in step 3 (Figure 18).
NOTE: Fourth clip(s) not shown.

12. Re-assemble the vehicle
in the reverse order.
Apply tape here
13. Clean all of the “non-fabric” interior surfaces with a
clean damp towel and then proceed to Step 14 (use
glass cleaner for glass surfaces).
EXAMPLE:
 Inside of all windows and Moonroof
 All surfaces of each seat
 Door panels
 Instrument panel.
Figure 18

IMPORTANT: Step 13 will remove any residue left
by the Moonroof drain hoses.

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14. Confirm that the odor is gone.

If odor is not completely gone, proceed to “Odor Removal with Ozone Machine”.
If odor is gone, proceed to “Resetting Customers Settings” on page 13.

Odor Removal with Ozone Machine

1. Connect the GR8 (Multitasking Battery Diagnostic Station) to the vehicle’s 12V battery.

Set the GR8 to ECM power supply mode.

2. Depress the vehicle’s power (“ignition”) switch twice without depressing the brake pedal.

The meter and gauges will illuminate.
CAUTION: For Q50 HybrideBay logo, Do Not set the vehicle in “READY to drive” mode and make sure the ready
to drive indicator light is OFF (not illuminated)..
Ready to drive indicator light
(Make sure it is OFF)

Figure 19
3. Turn the Climate Control “ON” and set the Mode to Recirculation.

4. Set the fan speed to the highest setting.
NOTE: This will allow the ozone to circulate through the Instrument Panel ducts and help distribute the
ozone throughout the vehicle over the 4 hour treatment.

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5. Remove the TechMate ozone machine
(Rainbowair Activator 1000 - II Mobile Station, part
number #188-5401-II MS), foam inserts (Figure
21) and ducting hose from its storage case.

Ozone machine

6. Place the ozone machine on top of the storage
case.
7. Fold down the rear seat arm rest, and then open
the pass through access panel to the trunk that is
located behind the arm rest.
NOTE: This will allow the ozone to reach the trunk
area.

Figure 20

8. Close all windows, doors, and Moonroof.
Foam inserts
9. Roll down either the passenger or driver’s side
window half way.
10. Insert the foam from kit (Shown in Figure 21) into
chosen window, and then close window until snug
fit is achieved.
NOTE: Confirm that any gaps in the foam are as
small as possible. This will prevent ozone from
escaping.
Figure 21

11. Connect the duct hose to the ozone machine and
then the other end into the hole provided in the
foam inserts.

Ozone machine
duct

Figure 22

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Set to 10

Set to 2

12. Set the ozone machine’s OUTPUT to 10 and the
HOURLY TIMER to 2.

13. Toggle the POWER switch to TIMER. This will
start the flow of ozone.

After 2 hours the machine will shut off.

Ozone output
control

Ozone
Timer

Toggle to right

Figure 23
14. Once the machine has shut OFF, leave it attached and the vehicle sealed for an additional 2 hours.

IMPORTANT: The process of deodorization takes place after the machine has shut
OFF. The vehicle MUST be left closed as this process takes place.

15. After the vehicle has sat with the ozone machine OFF for 2 hours, open the vehicle (all doors, trunk,
Moonroof) and allow it to air out for an hour.
NOTE: This will allow the ozone that has captured these odors to leave the vehicle.
 If possible (season and weather permitting), park the vehicle outside in direct sunlight to raise interior
cabin temperatures. This will allow more odor to be eliminated from the interior trim.
16. Turn OFF the Climate Control when the vehicle has aired out enough to allow entry.
17. Confirm that the odor is gone.
18. If some of the odor is still present, repeat Steps 8-17 as many times as needed until the odor is removed.
19. Replace the vehicle’s in-cabin microfilter.
NOTE: Refer to the ESM, section VTL – Ventilation System, for procedure to replace the in-cabin
microfilter.

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Reset Customer Settings

1. Reset the clock in the combination meter.
2. Reset the radio settings.
3. If equipped, check/reset the clock in the navigation system.
4. If equipped, reset the customer preferred settings for the Automatic Air Conditioning System.

If needed, refer to System Settings in the HAC section of the ESM.

5. Inform the customer:

If equipped, some memory settings in the navigation system may need to be reset.

6. Reinitialize and check the Anti-Pinch Function for all Auto-UP power windows:

Reinitialize:
a. Turn the ignition ON.
b. Operate the power window switch to fully open the window (glass all the way down).
c. Hold the window switch UP until the glass stops at the fully closed position, and then continue holding the
switch UP for 2 seconds or more.
d. Check that AUTO-UP function operates normally.

Check Anti-Pinch Function
a. Fully open the door window (glass all the way down). b. Hold a piece of wood near the fully closed
position.
c. Close the door window glass using the AUTO-UP switch. Allow the window glass to hit the wood. d.
Check the following conditions:
 Check that the glass lowers for approximately 150 mm (5.9 in), without pinching the wood, and stops.
 Check that the glass does not rise when operating the power window main switch, while the widow is
lowering after hitting the wood.

CAUTION: Do not check anti-pinch function with hands or other body parts because they may be pinched.

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PARTS INFORMATION
Description
Drain Hose RR-RH
Drain Hose RR-LH
Drain Hose FR-RH & LH
Garnish-center pillar, upper RH
(B-Pillar finisher)
Garnish-center pillar, upper LH
(B-Pillar finisher)
Clip
In-Cabin Microfilter

PART #
91390-4GB1A
91390-4GB1B
91390-4GB0A

Quantity
1
1
2

76913-4GA0A

1

76914-4GA0A

1

76988-JM00A
B7277-1CA1A

2
1

CLAIMS INFORMATION
Submit a Primary Part (PP) line claim using the following claims coding:
OPERATION

OP CODE

PFP

SYM

DIAG

FRT

Install Moon roof Drain Hoses
BX4GA1
(1)
ZV
32 3.4 hrs.
(1) Use one of the Drain Hose part numbers (91390-xxxxx) listed in the parts information table as the Primary
Failed Part (PFP).
And if Needed
OPERATION
OP CODE
PFP
SYM DIAG FRT
Deodorize vehicle Interior *
BX4QA1
(1)
ZV
32
0.2
*Operation code to be claimed once, applies for multiple deodorize sessions as needed to remove odor.

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12

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TSB/Document ID: ITB14039B

Replacement Service Bulletin Number:

MFR Communication Date: 2015-02-19

MFR Internal Campaign ID/Software Version:

Communication Type: Service Bulletin/Repair Instructions

NHTSA Components: VISIBILITY

MFR Component System:

MFR Component Subsystem:


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