Service Bulletin

14-027

September 6, 2014

BTB 51760 (1409)

Moonroof Will Not Auto-Close or Reverses Direction
AFFECTED VEHICLES
Year
Model
2013-15 RDX
2009-14 TL

Trim

VIN Range

ALL
ALL

ALL
ALL

SYMPTOM
The moonroof will not auto-close or will reverse direction when contacting the wind deflector.
POSSIBLE CAUSE
The drain channel rods create too much friction when the moonroof is closing, which causes the anti-pinch function to
operate and open the moonroof.
CORRECTIVE ACTION
Replace the right and left drain channel rod and reset the moonroof motor.
PARTS INFORMATION
Part Name

Part Number

Quantity

Left Drain Channel Rod

70386-TK4-A02

1

Right Drain Channel Rod

70381-TK4-A02

1

WARRANTY CLAIM INFORMATION
The normal warranty applies.
Operation Number

Description

Flat Rate Time

Template ID

Failed Part Number

8141P2

Replace the right and left drain
channel rod and reset the
moonroof motor.

0.7 hour

14-038N

70386-TK4-A01

Defect Code:

07403

Symptom Code: 03214
Skill Level:

Repair Technician

REPAIR PROCEDURE
1. Slide the sunshade all the way back.
2. Make sure that the moonroof is completely closed.

CLIENT INFORMATION: The information in this bulletin is intended for use only by skilled technicians who have the proper tools, equipment, and
training to correctly and safely maintain your vehicle. These procedures should not be attempted by “do-it-yourselfers,” and you should not assume
this bulletin applies to your vehicle, or that your vehicle has the condition described. To determine whether this information applies, contact an
authorized Acura automobile dealer.
© 2014 American Honda Motor Co., Inc. – All Rights Reserved

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3. Pry out the cap from the link cover, then remove the screw. Repeat for the opposite side.
TORX SCREWS

FRONT
SCREW
GUIDE PIN

CAP

LINK COVER

4. Pull down the back of the link cover to release the tab from the moonroof glass bracket. Lightly pull down the front
of the link cover to release the guide pin, then slide it back. Repeat for the opposite side.
5. Remove the two Torx screws from the moonroof glass on each side with a Torx T25 bit.
6. Remove the moonroof glass by lifting it up. Do not damage the roof panel.
NOTE: Carefully set the glass down on a clean dry shop blanket to prevent damage.

GLASS

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7. Remove the screw from the rear of the drain channel rod. Repeat for the opposite side.
DRAIN CHANNEL ROD

Do not reuse.

FRONT
SLIDER

DRAIN CHANNEL ROD

8. Using a small flat-blade screwdriver, remove the forward end of the drain channel rod off the slider by lifting and
pushing it inward and over the tab on the slider as shown. Repeat for the opposite side.

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9. Install the new drain channel rod by pushing it onto to the slider until the hole in the drain channel rod aligns with the
tab on the slider. Repeat for the opposite side.
DRAIN CHANNEL
SLIDER TAB
REAR SECTION OF
THE DRAIN CHANNEL

NEW DRAIN
CHANNEL ROD

TAB ON THE
SLIDER

NEW DRAIN
CHANNEL ROD

HOLE IN THE DRAIN
CHANNEL ROD

10. Install the screw to connect the drain channel to the drain channel rod. Repeat for the opposite side. Make sure the
rear section of the drain channel is set under the drain channel slider tab.
11. Place the moonroof glass into position and install the screws finger tight.

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12. Position the moonroof glass so that the glass and glass roof weatherstrip are even with the roof panel. The glass
and weatherstrip should be 0＋1/－1 mm (0＋0.04/－0.04 in) all the way around. If it is not within specification,
move the glass up or down until it is.
GLASS ROOF WEATHERSTRIP
GLASS

0 + 1/ 1 mm
(0+ 0.04/-0.04 in)

ROOF PANEL

13. Torque the two Torx screws on each side to 4.2 N·m (3.1 lb-ft).

GLASS

TORX SCREWS

4.2 N.m (3.1 lbf-ft)

FRONT

14. Reinstall the left and right link cover.
15. Do the MOONROOF MOTOR RESET PROCEDURE.

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MOONROOF MOTOR RESET PROCEDURE
1. Close the driver's door, and leave it closed until the procedure is complete.
2. Make sure the vehicle is OFF.
3. Push up and hold the moonroof tilt switch and then start the engine.
4. Once the engine is running, release the tilt switch and turn the engine off.
5. Repeat steps 3 and 4, four more times. This will clear the current position and friction data stored in the moonroof
control unit.
6. Check if the AUTO OPEN and AUTO CLOSE functions still work. They should not work.
 If the AUTO functions have been cleared, go to step 7.
 If the AUTO functions still work, the AUTO functions have not been cleared. Go back to step 2 and repeat the
procedure four more times.
7. Slide back and hold the moonroof switch lightly to the first detent (manual open mode) until the moonroof has fully
opened.
NOTE: Do not slide back the moonroof switch PAST the first detent. This is considered to be in the auto open
mode and you will need to restart from step 2.
8. Slide forward and hold the moonroof switch lightly to the first detent (manual close mode) until the moonroof has
fully closed (moonroof glass may tilt up on the first cycle).
NOTE: Do not push forward and hold the moonroof switch past the first detent (auto close mode) as this will result
in restarting from step 2.
9. Repeat steps 7 and 8, nine more times. This procedure teaches the control unit the moonroof position and the
friction profile.
NOTE: If the moonroof switch (open or close) is slid beyond the first detent at anytime during the nine cycles of
operation, you will need to restart from step 2.
10. Confirm that the moonroof works properly using the AUTO OPEN and AUTO CLOSE functions. If the moonroof
does not work properly using these functions, repeat steps 1 through 9.

END

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