Classification:

Reference:

BT15-037C

Date:

NTB16-017C

June 22, 2021

MOONROOF ADJUSTMENT AND REPAIRS
This bulletin has been amended. See Amendment History on the last page.
Please discard previous versions of this bulletin.

APPLIED VEHICLE:

2016-2021 Maxima (A36)

SERVICE INFORMATION
When working on the moonroof, most items can be replaced, repaired, or adjusted without
the need to replace the entire moonroof assembly.
Refer to the following procedures in this bulletin, as needed, to help resolve moonroof
issues.
 Knock Insert (Knock) Replacement (Page 2)
IMPORTANT: Knocks that are out of place may lodge in the track and prevent
correct moonroof, wind deflector, or sunshade operation. Before any other
adjustments or repairs are performed, the knocks should be checked.


Wind Deflector Replacement (Page 7)
For wind deflector being damaged, scratched, or having a broken clip.



Roof Finisher Replacement (Page 13)
For roof finisher being damaged, having seal issues, roof finisher not being seated,
or moonroof rattle.



Moonroof Glass Adjustment (Page 21)
For adjusting fit, tightening loose screws, or for glass being out of position.



Front or Rear Sunshade Replacement (Page 29)
For sunshade replacement due to discoloration, being jammed, out of track, loss of
tension or popping/clicking while in motion.



Moonroof or Sunshade Motor and Drive Cable Replacement (Page 33)
For inoperative or noisy.



Rear Link Replacement (Page 36)
For rattle noise when opening or closing the moonroof OR when driving with
moonroof NOT CLOSED (open or tilt position).

IMPORTANT: Do not lower the headliner unless instructed.


If the headliner is lowered, allow it to rest on the seats. Do not remove the headliner
from the vehicle.

Nissan Bulletins are intended for use by qualified technicians, not 'do-it-yourselfers'. Qualified technicians are
properly trained individuals who have the equipment, tools, safety instruction, and know-how to do a job
properly and safely. NOTE: If you believe that a described condition may apply to a particular vehicle, DO
NOT assume that it does. See your Nissan dealer to determine if this applies to your vehicle.

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SERVICE PROCEDURE
“Knock Insert” (Knock) Inspection (same for left or right side)
IMPORTANT:
 Detached knocks (knock shown in Figure 1) may lodge in the moonroof track and
prevent correct moonroof, wind deflector, or sunshade operation.


Do not remove the headlining for “knock” inspection or replacement.



Knocks are available only as part of a left or right side specific moonroof cable repair
kit, and are listed as GUIDE ASSY-SUNROOF in the PARTS INFORMATION table.

Knock
Figure 1

1. Turn the ignition ON, but do not start engine.
2. Completely open the moonroof.
3. Remove the left and right inner blinds (Figure 2).
a. Unclip the left and right inner blinds at the front corners of the moonroof unit
assembly (moonroof frame) with an appropriate tool.
b. Rotate the inner blind to release the remaining clip.

Passenger side
inner blind
Securing
clips

Figure 2

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NTB16-017C

Driver side
inner blind clip
NOTE: Figure 3 shows the inner blind
unclipped.

Figure 3

Driver side
inner blind
c. Carefully detach the inner blinds from
the moonroof frame by pushing
toward the inside of the vehicle along
the bottom edge of inner blind
(Figure 4).
Bottom edge of driver
side inner blind

Figure 4

d. Slide each inner blind toward the front
of the vehicle and off of the moonroof
guides (Figure 5).
NOTE: Figure 5 is shown from inside
the vehicle.

Driver side
inner blind

4. Close the moonroof half way.

Figure 5

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NTB16-017C

5. Confirm that both left and right knocks are present and correctly seated (Figure 6).


If both knocks are present, confirm that they are completely seated and lock clips
locked in place (Figure 7).
 If both knocks are present and completely seated, no further action is required.



If a knock is present, but not completely seated (Figure 8), proceed to step 6 and
replace only the unseated knock.
NOTE: Do not attempt to seat a knock that is out of place.



If one of the knocks is missing, proceed to step 6 and replace both the left and right
knocks.
Front edge of moonroof

Driver side
knock

Front sunshade
Moonroof guide

Figure 6
Lock clip locked
in place

Knock

Lock clip and
knock out of place

Moonroof
guide
Figures 7 and 8 shown with moonroof guide unbolted from moonroof frame for clarity.
Figure 7

Figure 8

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NTB16-017C

6. Remove the affected knock(s) (Figure 9).
a. Lift the knock lock clip with a finesse tool vertically away from the moonroof guide.
b. Slide the knock toward the inside of the vehicle.

Step 6a
Knock

Lock clip

Step 6b

Knock

Figure 9

7. Install new knock(s) for those affected.


When installing a new knock, listen for
an audible snap and then confirm that
the lock clip is flush.

Knock

NOTE: Knocks are marked left (L) and
right (R). Figure 10 shows a knock for the
passenger side and is marked “R”.
8. Pull on the knock to confirm that it is
completely seated on the moonroof
guide.

Knock marking

Figure 10

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NTB16-017C

9. Reinstall the left and right inner blinds.
a. Slide the top of the left and right inner blinds onto their guides (Figure 11).

Driver side guide
for inner blind

Figure 11

b. Reconnect the front clip of the inner
blind to the front corner of the
moonroof frame.

Front inner blind
clip connected

c. Attach the bottom of the inner blinds
to the moonroof frame.

10. Close the moonroof.

11. Turn the ignition OFF.
Figure 12

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NTB16-017C

Wind Deflector Replacement
Follow the steps below if the wind deflector is damaged, scratched, or has a broken clip.
IMPORTANT: Do not lower the headlining to repair the wind deflector.
Removal
1. Remove the left and right inner blinds (Figure 13).
a. Unclip the left and right inner blinds at the front corners of the moonroof unit
assembly (moonroof frame) with an appropriate tool.
b. Rotate the inner blind to release the remaining clip.

Passenger side
inner blind
Securing
clips

Figure 13

c. Unclip the left and right inner blinds at
the front corners of the moonroof unit
assembly
(moonroof frame) with an appropriate
tool.


Securing clip

Figure 14 shows the inner blind
unclipped.

Securing clip

Driver side inner
blind unclipped
Figure 14

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NTB16-017C

d. Carefully detach the inner blinds
from the moonroof frame by
pushing toward the inside of the
vehicle along the bottom edge of
inner blind (Figure 15).

Driver side
inner blind

Bottom edge of driver
side inner blind

Figure 15

e. Slide each inner blind toward the front
of the vehicle and off of the moonroof
guides (Figure 16).
NOTE: Figure 16 is shown from inside
the vehicle.

Driver side
inner blind
Figure 16

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NTB16-017C

2. Remove the left and right side pawl (pivot clips) and side arms (wind deflector arms)
from the moonroof unit assembly (moonroof frame) as follows:
a. Depress the molded tab on the pivot clip to lift it out of the notch in the moonroof
frame (Figure 18).
b. Slide the pivot clip and wind deflector arms toward the front of the vehicle.

Driver side wind
deflector arm

Molded tab

Notch in moonroof
frame

Driver side wind
deflector arm
Figure 17

Front of
vehicle

Figure 18

Example only
Molded tab


Figure 19 shows a pivot clip with the
wind deflector arm removed so that
lifting the molded tab can be seen.
Front of
vehicle

Pivot clip
Figure 19

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NTB16-017C

Driver side wind
deflector arm
c. Detach the pivot clip and wind
deflector arm from the frame
(Figure 20).
NOTE: The pivot clips are left and
right side specific. A piece of painter’s
tape marked “left” or “right” may help
distinguish them for reassembly.

Pivot clip
Front of
vehicle
Figure 20

3. Detach the wind deflector assembly from the front of the moonroof frame:
a. Gently lift the 3 attachment clips with a small screw driver one at a time (Figure 21).
b. Slide the wind deflector assembly toward the rear of the vehicle to release it from the
moonroof frame (Figure 21).

3 attachment clips

Front of
vehicle

Figure 21

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NTB16-017C

Installation

4. Insert the four tabs of the wind deflector into the moonroof frame (Figure 22).

Insert tabs here

Front of
vehicle

Figure 22

5. Slide the wind deflector toward the front of the vehicle and snap the 3 attachment clips
(shown in Figure 21) into the moonroof frame.
NOTE: Confirm that all three attachment clips are completely engaged.
6. Install the pivot clips onto both wind deflector arms and then proceed to install the clips,
one at a time, onto the moonroof frame.
7. Confirm that the molded tabs are completely locked into the moonroof frame, and are
flush with the moonroof frame (Figure 23).

Example only



Molded tab flush

Figure 23 shows the driver side pivot
clip with wind deflector arm removed
so that the molded tab can be seen.
Pivot clip

Figure 23

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NTB16-017C

8. Reinstall the left and right inner blinds.
a. Slide the top of the left and right inner blinds onto their guides (Figure 24).

Driver side guide
for inner blind

Figure 24

Front inner blind
clip connected
b. Reconnect the front clip of the inner
blind to the front corner of the
moonroof frame (Figure 25).
c. Attach the bottom of the inner blinds
to the moonroof frame.

9. Close the moonroof.
Figure 25
10. Turn the ignition OFF.

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NTB16-017C

Roof Finisher Replacement
IMPORTANT: Do not lower the headlining to repair or replace the roof finishers.
1. Is a roof finisher only loose (no scratches or seal issues)?
YES: Snap the roof finisher into place using even downward pressure over each clip. If
the roof finisher seats completely, no further repairs are required. If it will not seat,
proceed to step 2.
NO: Proceed to step 2 to replace roof finishers.
NOTE: This procedure applies to the left and/or right side as shown in the photos. The
process is the same for either side.

Roof finisher
2. Turn the ignition ON, but do not start the
engine.

3. Open the moonroof completely.

Figure 26

4. Remove the inboard screw (single use
T25) securing the front of the affected
roof finisher.

Inboard screw
(T25)

Figure 27

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NTB16-017C

5. Using a finesse stick, lift the roof finisher
at the front outside edge.

6. Slide the finesse stick down the length of
the outside edge of the roof finisher to
detach all the pins.

7. Remove the roof finisher.
NOTE: Some vehicles were equipped
with adhesive under the roof finishers.


If the roof finisher released, continue
to step 10 on page 16.



If the roof finisher will not release after
the pins have been detached, cut
away any adhesive as described
starting on the next page.

Step 6

Lift here

Figure 28

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NTB16-017C

8. Cut adhesive from the roof finisher.


The red dotted line indicates where
the adhesive will be cut in the next
step.

Figure 29

9. Using an adhesive cutting tool and
starting at the front, cut the adhesive
between the roof finisher and roof.

CAUTION: Apply tape on the roof to
avoid damage to the painted surfaces.

NOTE: It may be necessary to perform
this step more than once to cut through
all of the adhesive.

Adhesive
cutter

Tape

Figure 30

Figure 31

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NTB16-017C

10. Using a finesse tool, lift the roof
finisher at the front outside edge.

11. Slide the finesse tool down the length
of the outside edge of the roof
finisher to detach all pins.