UNIVERSAL AFTERMARKET LUMBAR SUPPORT SYSTEMS

UNIVERSAL

AFTERMARKET

LUMBAR SUPPORT

SYSTEMS

REVISED 04/09/09

Introduction

Why do we need lumbar support?

A proper lumbar support encourages correct seating posture, which provides:

• reduced strain for the vertebral disks

• improved relaxation

• optimum support for spinal column

• helps prevent back pain

Only Universal Aftermarket Lumbar Support Systems provide the upper back support and lower

pelvic area support with the lumbar region contour necessary for full seating comfort.

1. Constant

support of the

pelvis,

preventing it

from sliding

backwards and

providing

balance of the

spinal column.

2. Support of

each vertebral

disk in the

lumbar region,

providing relief

for the spinal

column and

relaxation of

back muscle.

3. Vertical

support of the

upper body,

easing neck

tension and

offering relief

for the

vertebral disks.

The spinal column is composed of vertebrae in a vertical arrangement. However, most lumbar

supports offer support in a horizontal orientation. This can result in pressure against the lumbar

vertebrae.

SHUKRA offers the most complete line of Adjustable Lumbar Supports on the market. We offer both

Manual and Electric models, and all of our supports are infinitely adjustable horizontally, to fit the

shape of the spine.

Pic. 1

Lumbar Support with Massage

Several of the models we offer, like the 4-Way Lumbar Support with Massage, also offer vertical

adjustment, to suit the height of any individual. The unique roller design and placement gently

massages the back muscles to improve blood flow to the supporting muscles. Increased circulation

relaxes muscle tension, resulting in improved comfort and reduced fatigue. The massage system

enhances comfort by improving blood flow to back muscles.

• Muscle fatigue (as indicated by RMS levels in Pic. 1 on p.2) decreases when the massage feature is

used.

• Proper set-up of massage time and IN/OUT lumbar position relaxes back muscles thus improving

comfort.

If you like to travel or spend all day working in your car, and if you are driving any car, you might

consider having a lumbar support installed.

Chevrolet - Avalanche, Blazer, Silverado 1500 (Work, Base, LS, Z71, SS), Colorado, Tahoe, etc.

Dodge - Caravan, Dakota (ST, SLT), Durango, RAM 1500

Ford - Excursion, Expedition, Explorer (XLS,, XLS Sport)

GMC - Sierra 1500, Safari, Yukon

Honda - Accord (DX, LX), Civic

Toyota - Camry, Corolla, Sequoia, Sienna, Tacoma, Tundra

Pacific Restyling Products Ltd

SHUKRA

Electric Lumbar Supports

3 Year Warranty

Manual Lumbar Supports

Limited Lifetime Warranty

Pacific Restyling Products Ltd & Shukra. warrants that we will replace the Universal Aftermarket

Lumbar Support Systems mechanisms for up to 3 years from the date of purchase.

This warranty is extended only to the original purchaser and does not cover collateral damage.

This warranty only covers failures due to defects in materials or workmanship which occur during

normal use.

Any modifications done to the original unit VOID this warranty.

LUMBAR SUPPORT MODELS

MODEL Q

CABLE DRIVEN LUMBAR

2 WAY (IN/OUT)

DRIVER SIDE PART # L181-63-L

PASSANGER SIDE PART # L181-63-R

MODEL L

ELECTRIC LUMBAR

2 WAY (IN/OUT)

PART # L315-06

Pacific Restyling Products Ltd

MODEL N

ELECTRIC LUMBAR

4 WAY (IN/OUT, UP/DOWN)

PART # L316-06

MODEL R

ELECTRIC MASSAGE LUMBAR

4 WAY (IN/OUT, UP/DOWN

/VERTICAL ROLLER MOTION MASSAGE)

PART # L320-04

Model Q

L181-63-L & L181-63-R

2-Way Manual Lumbar Support

Installation Instructions and Parts Diagram

*Before installation carefully read the instructions.

1. Check Parts Diagram for list of all parts needed for installation.

2. Remove seat from the vehicle and remove covers from the cushion and back.

3. Remove large seat foam from backrest. Measure approximately 16’’ from top of seat cushion or have the

customer sit on the seat to locate the most appropriate mounting height location.

4. Hollow out foam for lumbar support ribs and motors approximately ¼1/4’’ -1/2’’ or as needed. This will

allow the backrest to lay flat.

5. Attach top cross member to seat frame using supplied bar (or use existing one) at approximately 14.5’’ from

top of seat cushion. Cut excess bar length.. You may also secure the lumbar by means of heavy gage Zip-

ties. This is done by drilling self-tapping screws into the backrest frame and having the zip-ties suspend

from them. Also secure to bottom corners of the lumbar to the backrest frame by zip-tying without screws.

6. Attach universal mounting plate tabs onto top cross member.

7. Attach universal mounting plate to existing bottom cross member (or add a bar if necessary). Screws, cable

ties and other fasteners are suggested. Cut excess bar length.

8. Mount actuator-housing bracket to desired location along side of seat frame. Use your own good judgment

to locate the most likely location for the switch.

9. a) Route conduit to actuator housing bracket and slip into place.

b) Screw actuator into actuator housing bracket.

10. Snap knob into actuator housing.

11. Test lumbar to ensure unit is working properly.

12. Refit covers.

2 WM Lumbar Support

Actuator-Housing Bracket – 1

Part # 174

Knob – 1

Part # 218

Model L

L315-06

2-Way Power Lumbar Support

Installation Instructions and Parts Diagram

*Before installation carefully read the instructions. Automotive electrical experience is recommended for this

installation.

1. Check Parts Diagram for list of all parts needed for installation.

2. Remove seat from the vehicle and remove covers from the cushion and back.

3. Remove large seat foam from backrest. Measure approximately 16’’ from top of seat cushion or have

the customer sit on the seat to locate the most appropriate mounting height location.

4. Hollow out foam for lumbar support ribs and motors approximately ¼1/4’’ -1/2’’ or as needed. This

will allow the backrest to lay flat.

5. Attach top cross member to seat frame using supplied bar (or use existing one) at approximately 14.5’’

from top of seat cushion. Cut excess bar length.. You may also secure the lumbar by means of heavy

gage Zip-ties. This is done by drilling self-tapping screws into the backrest frame and having the zip-

ties suspend from them. Also secure to bottom corners of the lumbar to the backrest frame by zip-tying

without screws.

6. Attach universal mounting plate tabs onto top cross member. *A piece of material may be placed

between universal mounting plate and cross members to prevent any rattling.

7. Attach universal mounting plate to existing bottom cross member (or add a bar if necessary). Screws,

cable ties and other fasteners are suggested. Cut excess bar length.

8. Install switch bracket in most convenient location along side of seat frame or centre console if

applicable. Each installation is different. Use your own good judgment to locate the most likely location

for the switch.

9. Use #6, Connector on wire harness diagram for ground and positive wires. Connect positive wire to

closest power source and attach ground wire to floor pan.

10. Install the seat., connect wire harness’s #3, 2-way connector to female terminal # 1 of lumbar supports

attached wire harness.

11. Mount bezel to switch bracket.

12. Route wire harness # 2 switch terminal through switch bracket and bezel. Connect switch to terminal

and snap switch into bezel.

13. Test lumbar to ensure unit is working properly.

14. Refit covers.

2 WP Lumbar Support

Switch Bezel – 1

Part #389

# 2 Switch-

Terminal

# 3, 2-way

Connector

Switch Bracket – 1

Part # 401

Switch -1

Part # 388

# 6 Connector

Model N

L316-06

4-Way Power Lumbar Support

Installation Instructions and Parts Diagram

*Before installation carefully read the instructions. Automotive electrical experience is recommended for this

installation.

1. Check Parts Diagram for list of all parts needed for installation.

2. Remove seat from the vehicle and remove covers from the cushion and back.

3. Remove largea seat foam from backrest. Measure approximately 16’’ from top of seat cushion or have

the customer sit on the seat to locate the most appropriate mounting height location.

4. Hollow out foam for lumbar support ribs and motors approximately ¼1/4’’ -1/2’’ or as needed. This

will allow the backrest to lay flat.

5. Attach top cross member to seat frame using supplied bar (or use existing one) at approximately 14.5’’

from top of seat cushion. Cut excess bar length.. You may also secure the lumbar by means of heavy

gage Zip-ties. This is done by drilling self-tapping screws into the backrest frame and having the zip-

ties suspend from them. Also secure to bottom corners of the lumbar to the backrest frame by zip-tying

without screws.

6. Attach universal mounting plate tabs onto top cross member. *A piece of material may be placed

between universal mounting plate and cross members to prevent any rattling.

7. Attach universal mounting plate to existing bottom cross member (or add a bar if necessary). Screws,

cable ties and other fasteners are suggested. Cut excess bar length.

8. Adhere fabric isolator sheet to foam with glue. This will prevent lumbar ribs from catching the foam.

9. Install switch bracket in most convenient location along side of seat frame or centre console if

applicable. Each installation is different. Use your own good judgment to locate the most likely location

for the switch.

10. Use #6, 3M Connector on wire harness diagram for ground and positive wires. Connect positive wire to

closest power source and attach ground wire to floor pan. NOTE: Wire harness uses own 15 Amp fuse.

11. Install the seat., connect wire harness’s #3, 6-way connector to female terminal # 1 of lumbar supports

attached wire harness.

12. Mount bezel to switch bracket.

13. Route wire harness # 2 switch terminal through switch bracket and bezels. Connect switch to terminal

and snap switch into bezel.

14. Test lumbar to ensure unit is working properly.

15. Refit covers.

4 WP Lumbar Support

Switch Bezel – 1

Part #389

# 2 Switch-

Terminals

# 3, 2-way

Connector

Switch Bracket - 2

Part # 401

Switch –2 Part # 388

# 6, 3M

Connector

15 AMP Fuse

Model R

L320-04

4-Way Power Lumbar Support With Massage

Installation Instructions and Parts Diagram

*Before installation carefully read the instructions. Automotive electrical experience is recommended for this

installation.

1. Check Parts Diagram for list of all parts needed for installation.

2. Remove seat from the vehicle and remove covers from the cushion and back.

3. Remove large seat foam from backrest. Measure approximately 16’’ from top of seat cushion or have

the customer sit on the seat to locate the most appropriate mounting height location.

4. Hollow out foam for lumbar support ribs and motors approximately ¼1/4’’ -1/2’’ or as needed. This

will allow the backrest to lay flat.

5. Attach top cross member to seat frame using supplied bar (or use existing one) at approximately 14.5’’

from top of seat cushion. Cut excess bar length.. You may also secure the lumbar by means of heavy

gage Zip-ties. This is done by drilling self-tapping screws into the backrest frame and having the zip-

ties suspend from them. Also secure to bottom corners of the lumbar to the backrest frame by zip-tying

without screws.

6. Attach universal mounting plate tabs onto top cross member. *A piece of material may be placed

between universal mounting plate and cross members to prevent any rattling.

7. Attach universal mounting plate to existing bottom cross member (or add a bar if necessary). Screws,

cable ties and other fasteners are suggested. Cut excess bar length.

8. Adhere fabric isolator sheet to foam with glue. This will prevent lumbar ribs from catching the foam.

9. Install switch bracket in most convenient location along side of seat frame or centre console if

applicable. Each installation is different. Use your own good judgment to locate the most likely location

for the switch.

10. Use #6, 3M Connector on wire harness diagram for ground and positive wires. Connect positive wire to

closest power source and attach ground wire to floor pan. NOTE: Wire harness uses own 15 Amp fuse.

11. Install the seat., connect wire harness’s #3, 6-way connector to female terminal # 1 of lumbar supports

attached wire harness.

12. Mount bezel to switch bracket.

13. Route wire harness # 2 switch terminal through switch bracket and bezels. Connect switch to terminal

and snap switch into bezel.

14. Test lumbar to ensure unit is working properly.

15. Refit covers.

4 WP Lumbar Support

with massage

Switch Bezel – 1

Part #389

# 2 Switch-

Terminals

# 3, 2-way

Connector

Switch Bracket - 2

Part # 401

Switch -2

Part # 388

# 6, 3M

Connector

15 AMP Fuse

Massage Lumbar Technical Information

 Lumbar Travel – 35 mm In/Out displacement

50 mm Up/Down/Massage displacement

 Lumbar movement during a manual move is infinitely adjustable throughout the travel

range by the occupant

 Total of 20 independent massage rollers located on massage basket

 Compliance spring provided for maximum comfort

 RTP – all massage units have a “Return To Position” feature. This ensures that upon

completion or termination of a massage the unit returns to its original vertical position

 Driver seats systems have full lumbar memory features

 Normal 4-way lumbar functionality exists on all systems

 Massage functionality – 10 min cycle once initiated

 Up switch input (A Quick Press and Release of switch) of less than 390

milliseconds starts massage

 Down switch input (Another Quick Press and Release of switch) of less than

390 milliseconds stops massage cycle at which point the lumbar returns to its

original start location.

 In/Out adjustment is possible during massage cycle. Due to the Flex-Mount of

the rollers this is often used to intensify the massage effect.

 Applying an Up or Down switch input greater than 410 milliseconds during a

massage cycle moves the lumbar in the desired direction until the switch input is

removed or end of travel has been reached.

 Massage cycle time (full up or down) unloaded is approximately 8.5 seconds.