Nissan Sentra Service Manual: Front seat

Driver side

DRIVER SIDE : Exploded View

Driver side

1. Headrest

2. Headrest holder (locked)
3. Headrest holder (free)
4. Seatback silencer
5. Seatback trim
6. Seatback pad
7. Seat belt buckle
8. Seat cushion outer finisher (RH)
9. Slide cover (RH)
10. Seat cushion inner finisher (RH)
11. Recline mechanism cover (RH)
12. Seat cushion trim
13. Seat cushion pad
14. Slide cover (LH)
15. Seat cushion outer finisher (LH)
16. Lift lever
17. Lift lever finisher
18. Recline lever
19. Seat cushion inner finisher (LH)
20. Recline mechanism cover (LH)
21. Seat frame assembly
22. Side air bag module

DRIVER SIDE : Disassembly and Assembly

SEATBACK ASSEMBLY

WARNING:

Do not leave any objects (screwdrivers, tools, etc.) on the seat during seatback repair. It can lead to personal injury if the side air bag should accidentally deploy.

CAUTION:

• Before servicing, turn the ignition switch OFF, disconnect both battery terminals and wait at least three minutes.

• Handle the side air bag module carefully. During disassembly, always hold the side air bag module, do not let it hang by the wire harness.

• Always work from the side or back of the seatback assembly, do not work in front of seat.

• Do not use air tools or electric tools for servicing the seat assembly.

• Replace the side air bag module if it has been dropped or sustained an impact.

• Do not insert any objects into the side air bag module.

• Do not attempt to disassemble the side air bag module.

• Do not expose the side air bag module to temperatures exceeding 93В°C (200В°F).

• Do not expose the side air bag module to any oil, grease, detergent or water.

• During disassembly, do not damage the seatback board, chutes, connectors, retainers, clips, module harness or the side air bag module.

NOTE:

If the vehicle has been involved in a collision and the side air bag module has deployed, the seatback pad and seatback trim must be replaced.

Disassembly

1. Remove the front seat assembly. Refer to SE-18, "DRIVER SIDE : Removal and Installation - Seat Assembly".
2. Remove the headrest.
3. Release the lower seatback trim retainer straps (D) from the seat frame assembly
4. Unzip the seatback zippers (B), then release J-hook retainers (C) and (A).

5. Unclip the side air bag harness from the seat frame assembly.

NOTE:

Take note of harness routing and attachment location for accurate installation.

6. Disconnect the harness connector from the seatback heater (if equipped).
7. Remove the seatback assembly from the seat frame assembly.

1. Release the headrest holder locks as shown and remove the headrest holders.

CAUTION:

Before removing/installing the headrest holder, check its orientation (front/rear and right/left).

2. Remove and discard the side air bag module nuts (A).

CAUTION:

Do not reuse the side air bag module nuts.

1. Side air bag module

3. Disengage the side air bag module studs from the seat frame assembly and lift the seatback trim and seatback pad as an assembly from the seat frame assembly.

8. Separate the seatback trim from the seatback pad.

1. Open the seatback trim and release the side air bag module studs (A) from the holes in the chute (B).
2. Pull the side air bag module (1) out of the chute (B) and remove from the seatback trim.

CAUTION:

• Replace the side air bag module if it has been dropped or sustained an impact.

• Do not strike the side air bag module.

3. Remove the hog rings, release the hook fastener (A) and separate the seatback trim from the seatback pad.

Hog ring

NOTE:

Remove all pieces of hog rings and discard them.

Assembly

Assembly is in the reverse order of disassembly.

CAUTION:

• Inspect seatback pad, seatback trim and seatback trim chutes. Replace if damaged.

• Smooth out all wrinkles during assembly.

• Always route side air bag module harness in original location. Replace any deformed or damaged clips with same type and color. Always install clips in the original location in the harness.

• After work is completed, check that no system malfunction is detected causing the air bag warning lamp to illuminate.

• If a malfunction is detected by the air bag warning lamp after repair or replacement of the malfunction parts, perform the SRS final check. Refer to SRC-17, "SRS Final Check".

• When installing the side air bag module, make sure the side air bag chute (1) is pulled over the outboard surface of the side air bag module (2). Make sure there are no wrinkles and the chute is not folded, twisted or pinched.

3. Seatback pad
4. Seat frame assembly

Front

• Tighten the side air bag module nuts to specification. Refer to SE- 26, "DRIVER SIDE : Exploded View".

CAUTION:

Do not reuse the side air bag module nuts.

• When installing the seatback trim, firmly push down while sliding your hand along the seams as shown ( 
  ) to ensure the hook fasteners below the seatback trim are fastened properly.

• Install new hog rings on the seatback trim in original positions.

  Use only one hog ring in each designated location.

  Ensure hog rings are correctly fastened around both the seatback trim and seatback pad wires.

  Use NISSAN standard hog rings and tools to assemble.

Seat cushion

Warning:

Do not leave any objects (screwdrivers, tools, etc.) On the seat during seat cushion repair. It can lead to personal injury if the side air bag should accidentally deploy.

Caution:

• Before servicing, turn the ignition switch off, disconnect both battery terminals and wait at least three minutes.

• Always work from the side or back of the seatback assembly, do not work in front of seat.

• Do not use air tools or electric tools for servicing the seat assembly.

• During disassembly, do not damage the seatback cover, chutes, connectors, retainers, clips, module harness or the side air bag module.

Disassembly

1. Remove the front seat assembly. Refer to se-18, "driver side : removal and installation - seat assembly".
2. Remove the seat cushion outer finisher (LH) (4).

1. Release pawls and remove the lift lever finisher (2).
2. Remove two screws and the lift lever (1).
3. Release pawl and remove the recline lever (3) as shown.
4. Release pawls and pull to release the metal clips.

Metal clip

: Pawl

3. Remove the seat cushion outer finisher (RH) (1).

1. Remove the seat belt buckle (2) and position aside. Refer to SB- 8, "Removal and Installation".
2. Release pawls and pull to release the metal clips.

Metal clip

Pawl

4. Remove the seat cushion trim (1) and seat cushion pad as an assembly.

: Front

1. Release j-clip retainer (a) from the seat frame assembly.
2. Release j-clip retainer (b) from the seat frame assembly.
3. Release J-clip retainer (D) from the seat frame assembly.
4. Release retainer strip (c) from the seat frame assembly.
5. Disconnect the harness connector from the seat cushion heater (if equipped).

Note:

Take note of harness routing and attachment location for accurate installation.

6. Remove the seat cushion trim and seat cushion pad as an assembly from the seat frame assembly.

5. Remove the hog rings, release the hook fastener (a) and separate the seat cushion trim from the seat cushion pad.

: Hog ring

Note:

Remove all pieces of hog rings and discard them.

Assembly

Assembly is in the reverse order of disassembly.

Caution:

• Smooth out all wrinkles during assembly.

• Always route side air bag module harness in original location. Replace any deformed or damaged clips with same type and color. Always install clips in the original location in the harness.

• After work is completed, check that no system malfunction is detected causing the air bag warning lamp to illuminate.

• If a malfunction is detected by the air bag warning lamp after repair or replacement of the malfunction parts, perform the srs final check. Refer to src-17, "srs final check".

• When installing the seat cushion trim, firmly push down while sliding your hand along the seams as shown (
  ) to ensure the hook fasteners below the seat cushion trim are fastened properly.

• Install new hog rings on the seat cushion trim in original positions.

  Use only one hog ring in each designated location.

  Ensure hog rings are correctly fastened around both the seat cushion trim and seat cushion pad wires.

  Use nissan standard hog rings and tools to assemble.

DRIVER SIDE : Side Air Bag Module

Warning:

Do not leave any objects (screwdrivers, tools, etc.) On the seat during seatback repair. It can lead to personal injury if the side air bag should accidentally deploy.

Caution:

• Before servicing the side air bag module, turn the ignition switch off, disconnect both battery terminals and wait at least three minutes.

• Handle the side air bag module carefully. During disassembly, always hold the side air bag module, do not let it hang by the wire harness.

• Always work from the side or back of the seatback assembly, do not work in front of seat.

• Do not use air tools or electric tools for servicing the seat assembly.

• Replace the side air bag module if it has been dropped or sustained an impact.

• Do not insert any objects into the side air bag module.

• Do not attempt to disassemble the side air bag module.

• Do not expose the side air bag module to temperatures exceeding 93В°c (200В°f).

• Do not expose the side air bag module to any oil, grease, detergent or water.

• During disassembly, do not damage the seatback board, chutes, connectors, retainers, clips, module harness or the side air bag module.

Note:

• If the vehicle has been involved in a collision and the side air bag has deployed, the front seatback assembly must be replaced.
• For side air bag module removal and installation, seatback trim and seatback pad must be removed.

Disassembly

1. Remove the front seat assembly. Refer to SE-18, "DRIVER SIDE : Removal and Installation - Seat Assembly".
2. Remove the headrest.
3. Release the lower seatback trim retainer straps (d) from the seat frame assembly
4. Unzip the seatback zippers (B), then release the J-hook retainers (C) and (A).

5. Unclip the side air bag module harness from the seat frame assembly.

Note:

Take note of harness routing and attachment location for accurate installation.

6. Disconnect the harness connector from the seatback heater (if equipped).
7. Remove the seatback assembly from the seat frame assembly.

1. Release the headrest holder locks as shown and remove the headrest holders.

CAUTION:

Before removing/installing the headrest holder, check its orientation (front/rear and right/left).

2. Remove and discard the side air bag module nuts (A).

CAUTION:

Do not reuse the side air bag module nuts.

1. Side air bag module

3. Disengage the side air bag module studs from the seat frame assembly and lift the seatback trim and seatback pad as an assembly from the seat frame assembly.

8. Open the seatback trim and release the side air bag module studs (A) from the holes in the chute (B).
9. Pull the side air bag module (1) out of the chute (B) and remove from the seatback trim.

CAUTION:

• Replace the side air bag module if it has been dropped or sustained an impact.

• Do not strike the side air bag module.

ASSEMBLY

Installation is in the reverse order of removal.

CAUTION:

• Inspect seatback pad, seatback trim and seatback trim chutes. Replace if damaged.

• Smooth out all wrinkles during assembly.

• Always route side air bag module harness in original location. Replace any deformed or damaged clips with same type and color. Always install clips in the original location in the harness.

• After installation is completed, check that no system malfunction is detected causing the air bag warning lamp to illuminate.

• If a malfunction is detected by the air bag warning lamp after repair or replacement of the malfunction parts, perform the SRS final check. Refer to SRC-17, "SRS Final Check".

• When installing the side air bag module, make sure the side air bag chute (1) is pulled over the outboard surface of the side air bag module (2). Make sure there are no wrinkles and the chute is not folded, twisted or pinched.

3. Seatback pad
4. Seat frame assembly

: Front

• Tighten the side air bag module nuts to specification. Refer to SE- 26, "DRIVER SIDE : Exploded View".

CAUTION:

Do not reuse the side air bag module nuts.

Passenger side

PASSENGER SIDE : Exploded View

Passenger side

1. Headrest
2. Headrest holder (free)
3. Headrest holder (locked)
4. Seatback trim
5. Seatback pad
6. Seatback silencer
7. Side air bag module
8. Recline mechanism cover (RH)
9. Seat cushion inner finisher (RH)
10. Recline lever
11. Seat cushion outer finisher (RH)
12. Seat cushion trim
13. Seat cushion pad
14. Seat cushion outer finisher (LH)
15. Seat cushion inner finisher (LH)
16. Recline mechanism cover (LH)
17. Seat belt buckle
18. Seat frame assembly

PASSENGER SIDE : Disassembly and Assembly

SEATBACK ASSEMBLY

WARNING:

Do not leave any objects (screwdrivers, tools, etc.) on the seat during seatback repair. It can lead to personal injury if the side air bag should accidentally deploy.

CAUTION:

• Before servicing, turn the ignition switch OFF, disconnect both battery terminals and wait at least three minutes.

• Handle the side air bag module carefully. During disassembly, always hold the side air bag module, do not let it hang by the wire harness.

• Always work from the side or back of the seatback assembly, do not work in front of seat.

• Do not use air tools or electric tools for servicing the seat assembly.

• Replace the side air bag module if it has been dropped or sustained an impact.

• Do not insert any objects into the side air bag module.

• Do not attempt to disassemble the side air bag module.

• Do not expose the side air bag module to temperatures exceeding 93В°C (200В°F).

• Do not expose the side air bag module to any oil, grease, detergent or water.

• During disassembly, do not damage the seatback board, chutes, connectors, retainers, clips, module harness or the side air bag module.

NOTE:

If the vehicle has been involved in a collision and the side air bag module has deployed, the seatback pad and seatback trim must be replaced.

Disassembly

1. Remove the front seat assembly. Refer to SE-20, "PASSENGER SIDE : Removal and Installation - Seat Assembly".
2. Remove the headrest.
3. Release the lower seatback trim retainer straps (D) from the seat frame assembly.
4. Unzip the seatback zippers (B), then release the J-hook retainers (C) and (A).

5. Unclip the side air bag module harness from the seat frame assembly.

NOTE:

Take note of harness routing and attachment location for accurate installation.

6. Disconnect the harness connector from the seatback heater (if equipped).
7. Remove the seatback assembly from the seat frame assembly.

1. Release the headrest holder locks as shown and remove the headrest holders.

CAUTION:

Before removing/installing the headrest holder, check its orientation (front/rear and right/left).

2. Remove and discard the side air bag module nuts (A).

CAUTION:

Do not reuse the side air bag module nuts.

1. Side air bag module

3. Disengage the side air bag module studs from the seat frame assembly and lift the seatback trim and seatback pad as an assembly from the seat frame assembly.

8. Separate the seatback trim from the seatback pad.

1. Open the seatback trim and release the side air bag module studs (A) from the holes in the chute (B).
2. Pull the side air bag module (1) out of the chute (B) and remove from the seatback trim.

CAUTION:

• Replace the side air bag module if it has been dropped or sustained an impact.

• Do not strike the side air bag module.

3. Remove the hog rings, release the hook fastener (A) and separate the seatback trim from the seatback pad.

: Hog ring

NOTE:

Remove all pieces of hog rings and discard them.

Assembly

Assembly is in the reverse order of disassembly.

CAUTION:

• Inspect seatback pad, seatback trim and seatback trim chutes. Replace if damaged.

• Smooth out all wrinkles during assembly.

• Always route side air bag module harness in original location. Replace any deformed or damaged clips with same type and color. Always install clips in the original location in the harness.

• After work is completed, check that no system malfunction is detected causing the air bag warning lamp to illuminate.

• If a malfunction is detected by the air bag warning lamp after repair or replacement of the malfunction parts, perform the SRS final check. Refer to SRC-17, "SRS Final Check".

• When installing the side air bag module, make sure the side air bag chute (3) is pulled over the outboard surface of the side air bag module (4). Make sure there are no wrinkles and the chute is not folded, twisted or pinched.

1. Seatback pad
2. Seat frame assembly

: Front

• Tighten the side air bag nuts to specification. Refer to SE-35, "PASSENGER SIDE : Exploded View".

CAUTION:

Do not reuse the side air bag module nuts.

• When installing the seatback trim, firmly push down while sliding your hand along the seams as shown ( 
  ) to ensure the hook fasteners below the seatback trim are fastened properly.

• Install new hog rings on the seatback trim in original positions.

  Use only one hog ring in each designated location.

  Ensure hog rings are correctly fastened around both the seatback trim and seatback pad wires.

  Use NISSAN standard hog rings and tools to assemble.

Seat cushion

WARNING:

Do not leave any objects (screwdrivers, tools, etc.) On the seat during seat cushion repair. It can lead to personal injury if the side air bag should accidentally deploy.

Caution:

• Front passenger seat is equipped with an occupant classification system sensor and control module.

  Do not disassemble front passenger seat cushion assembly or remove the trim as this will affect the occupant classification system calibration.

• Before servicing, turn ignition switch off, disconnect both battery terminals and wait at least three minutes.

• Always work from the side or back of the seatback assembly, do not work in front of seat.

• Do not use air tools or electric tools for servicing the seat assembly.

• During disassembly, do not damage the seatback cover, chutes, connectors, retainers, clips, module harness or the side air bag module.

Disassembly

1. Remove the front seat assembly. Refer to se-20, "passenger side : removal and installation - seat assembly".
2. Remove the seat cushion outer finisher (rh) (2).

1. Release pawl and remove the recline lever (1) as shown.
2. Release pawls and pull to release the metal clips.

: Metal clip

: Pawl

3. Remove the seat cushion outer finisher (lh) (1).

1. Remove the seat belt buckle (2) and position aside. Refer to sb- 8, "removal and installation".
2. Release pawls and pull to release the metal clips.

: Metal clip

: Pawl

4. Remove the seat cushion trim (1) and seat cushion pad as an assembly.

Front

1. Release j-clip retainer (a) from the seat frame assembly.
2. Release J-clip retainer (B) from the seat frame assembly
3. Release J-clip retainer (D) from the seat frame assembly
4. Release retainer strip (c) from the seat frame assembly.
5. Disconnect the harness connector from the seat cushion heater (if equipped).

Note:

Take note of harness routing and attachment location for accurate installation.

6. Remove the seat cushion trim and seat cushion pad as an assembly from the seat frame assembly.

5. Remove the hog rings, release the hook fastener (A) and separate the seat cushion trim from the seat cushion pad.

Hog ring

Note:

Remove all pieces of hog rings and discard them.

Assembly

Assembly is in the reverse order of disassembly.

Caution:

• Smooth out all wrinkles during assembly.

• Always route seat harness in original location. Replace any deformed or damaged clips with same type and color. Always install clips in the original location in the harness.

• After work is completed, check that no system malfunction is detected causing the air bag warning lamp to illuminate.

• If a malfunction is detected by the air bag warning lamp after repair or replacement of the malfunction parts, perform the srs final check. Refer to src-17, "srs final check".

• When installing the seat cushion trim, firmly push down while sliding your hand along the seams as shown ( ) to ensure the hook
  fasteners below the seat cushion trim are fastened properly.

• Install new hog rings on the seat cushion trim in original positions.

  Use only one hog ring in each designated location.

  Ensure hog rings are correctly fastened around both the seat cushion trim and seat cushion pad wires.

  Use NISSAN standard hog rings and tools to assemble.

PASSENGER SIDE : Side Air Bag Module

Warning:

Do not leave any objects (screwdrivers, tools, etc.) On the seat during seatback repair. It can lead to personal injury if the side air bag should accidentally deploy.

Caution:

• Before servicing the side air bag module, turn the ignition switch off, disconnect both battery terminals and wait at least three minutes.

• Handle the side air bag module carefully. During disassembly, always hold the side air bag module, do not let it hang by the wire harness.

• Always work from the side or back of the seatback assembly, do not work in front of seat.

• Do not use air tools or electric tools for servicing the seat assembly.

• Replace the side air bag module if it has been dropped or sustained an impact.

• Do not insert any objects into the side air bag module.

• Do not attempt to disassemble the side air bag module.

• Do not expose the side air bag module to temperatures exceeding 93В°c (200В°f).

• Do not expose the side air bag module to any oil, grease, detergent or water.

• During disassembly, do not damage the seatback board, chutes, connectors, retainers, clips, module harness or the side air bag module.

Note:

• If the vehicle has been involved in a collision and the side air bag module has deployed, the front seatback assembly must be replaced.
• For side air bag module removal and installation, seatback trim and seatback pad must be removed.

Disassembly

1. Remove the front seat assembly. Refer to se-20, "passenger side : removal and installation - seat assembly".
2. Remove the headrest.
3. Release the lower seatback trim retainer straps (D) from the seat frame assembly.
4. Unzip the seatback zippers (B), then release the J-hook retainers (C) and (A).

5. Unclip the side air bag module harness from the seat frame assembly.

Note:

Take note of harness routing and attachment location for accurate installation.

6. Disconnect the harness connector from the seatback heater (if equipped).
7. Remove the seatback assembly from the seat frame assembly.

1. Release the headrest holder locks as shown and remove the headrest holders.

Caution:

Before removing/installing the headrest holder, check its orientation (front/rear and right/left).

2. Remove and discard the side air bag module nuts (a).

Caution:

Do not reuse the side air bag module nuts.

1. Side air bag module

3. Disengage the side air bag module studs from the seat frame assembly and lift the seatback trim and seatback pad as an assembly from the seat frame assembly.

8. Open the seatback trim and release the side air bag module studs (a) from the holes in the chute (b).
9. Pull the side air bag module (1) out of the chute (B) and remove from the seatback trim.

Caution:

• Replace the side air bag module if it has been dropped or sustained an impact.

• Do not strike the side air bag module.

Assembly

Installation is in the reverse order of removal.

Caution:

• Inspect seatback pad, seatback trim and seatback trim chutes. Replace if damaged.

• Smooth out all wrinkles during assembly.

• Always route side air bag module harness in original location. Replace any deformed or damaged clips with same type and color. Always install clips in the original location in the harness.

• After installation is completed, check that no system malfunction is detected causing the air bag warning lamp to illuminate.

• If a malfunction is detected by the air bag warning lamp after repair or replacement of the malfunction parts, perform the srs final check. Refer to src-17, "srs final check".

• When installing the side air bag module, make sure the side air bag chute (3) is pulled over the outboard surface of the side air bag module (4). Make sure there are no wrinkles and the chute is not folded, twisted or pinched.

1. Seatback pad
2. Seat frame assembly

Front

• Tighten the side air bag module nuts to specification. Refer to SE- 35, "PASSENGER SIDE : Exploded View".

Caution:

Do not reuse the side air bag module nuts.