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Discussion Starter · #1 · (Edited)
Disclaimer
"Please use caution and seek professional assistance when necessary. 355nations.com, myself and all associated members are not responsible for any damages, injuries or other harm which may occur with this modification. This post does not reflect the views of 355nations.com and it's ownership." Before attempting this modification, it is advised to verify your Colorado or Canyon service manual or a certified mechanic, as not all GMT 355's are the same!


A 355nation (MTS) presented by
supermodulation

Project Name
How-to Install Hummer H3 Power Heated Leather Seats & Armrest

Project Description
How To Install Hummer H3 Power Heated Leather Seats with H3 Leather armrest in to a Chevy Colorado / GMC Canyon, GMT355 vehicle platform and retain OEM air bags system.

Skill Level
3 out of 5

Project Vehicle
Make: GMC
Model: Canyon SLE 4wd
Year: 2006
Engine: 3.5L
Power windows: Yes
Sun Roof: No

Tool Needed
Tools:
18 mm socket for seat bolts.
T50 Torque driver for seat belt buckles.
Wire strippers/crimper's


Materials:
Electrical tape
Wire loom
25 ft. of red 10 gauge wire.
25 ft. of brown 16 gauge wire.
1 x 40 amp mini fuse.
2 x 25 amp mini fuse.
3 inline heavy duty mini fuse holders.


Project Time
3 hour or less

Project Cost
$600.00

The H3 seats are a direct bolt in, however I had to swap all the seat belt buckles, airbag sensors (SIR), position sensor and wiring harness to adapt to my GMC Canyon. This mod is specific to the seat year and truck year. 2004 and 2005 year trucks only require the seat belt buckle sensor and position sensor where as the 2006 and later GMT355 trucks require a seat pressure sensor, position sensor and a seat belt sensor.

QUESTION: Do I have to modify the H3 seats bracket to mount them in my Colorado or Canyon truck?
ANSWER: No, The Hummer H3 seats have the same bolt pattern as the OEM bucket seats and will directly bolt in. You will need an 18mm socket for the 4 bolts.

QUESTION: What is the difference between the Deluxe bucket OEM seat verses the Hummer H3 Leather seat?
ANSWER: Other than the electronics, seat module and wiring harness the H3 seat is a little more firmer. The advantage of the H3 seat is it conforms around the individual by the use of a 6-way position manual controls located along side of the seat. The H3 seat back rest and kidney support is designed to keep the individual from moving around.

QUESTION: Are both seats the same height?
ANSWER: No, The H3 seat is several inches higher than the OEM Deluxe Bucket seat.

QUESTION: Comparing both seats, which one has greater seat travel?
ANSWER: The H3 seat can travel several more inches, front to back than the Canyon Deluxe Bucket seat.


2008 Hummer H3 Alpha Power / Heated front leather seats.
Purchased From EBAY for $600.00



=========================================================================
Where to find Hummer H3 seats:

EBAY, motown-partsman -
Items for Sale by motown-partsman

EBAY, Schram-Auto-Parts -
eBay Store - Schram Auto Parts: Lighting, Mirrors, Radios

EBAY, LKQonline -
eBay Store - LKQOnline: Salvage Parts, Interior Parts, Speedometers

EBAY, stjamesautoparts -
Items for Sale by stjamesautoparts

=========================================================================
Restraints - Passenger Presence Sensing System Cautions

Bulletin No.: 06-08-50-009B

Date: July 19, 2007

INFORMATION

Subject:
Information on Passenger Presence Sensing System (PPS or PSS) Concerns With Custom Upholstery, Accessory Seat Heaters or Other Comfort Enhancing Devices

Models:
2008 and Prior GM Cars and Trucks (including Saturn)
2008 and Prior HUMMER H2, H3
2005-2008 Saab 9-7X

with Passenger Presence Sensing System

Supercede:

This bulletin is being revised to include the 2008 model year. Please discard Corporate Bulletin Number 06-08-50-009A (Section 08 - Body and Accessories).

Concerns About Safety and Alterations to the Front Passenger Seat

The front passenger seat in many GM vehicles is equipped with a passenger sensing system that will turn off the right front passenger's frontal airbag under certain conditions, such as when an infant or child seat is present. In some vehicles, the passenger sensing system will also turn off the right front passenger's seat mounted side impact airbag. For the system to function properly, sensors are used in the seat to detect the presence of a properly-seated occupant. The passenger sensing system may not operate properly if the original seat trim is replaced (1) by non-GM covers, upholstery or trim, or (2) by GM covers, upholstery or trim designed for a different vehicle or (3) if any object, such as an aftermarket seat heater or a comfort enhancing pad or device is installed under the seat fabric or between the occupant and the seat fabric.

Aftermarket Seat Heaters, Custom Upholstery, and Comfort Enhancing Pads or Devices

ON A GM VEHICLE EQUIPPED WITH A PASSENGER SENSING SYSTEM, USE ONLY SEAT COVERS AND OTHER SEAT-RELATED EQUIPMENT RELEASED AS GM ACCESSORIES FOR THAT VEHICLE. DO NOT USE ANY OTHER TYPE OF SEAT COVERS OR SEAT-RELATED EQUIPMENT, OR GM ACCESSORIES RELEASED FOR OTHER VEHICLE APPLICATIONS.

Many types of aftermarket accessories are available to customers, upfitting shops, and dealers. Some of these devices sit on top of, or are Velcro(R) strapped to the seat while others such as seat heaters are installed under the seat fabric. Additionally, seat covers made of leather or other materials may have different padding thickness installed that could prevent the Passenger Sensing System from functioning properly. Never alter the vehicle seats. Never add pads or other devices to the seat cushion, as this may interfere with the operation of the Passenger Sensing System and either prevent proper deployment of the passenger airbag or prevent proper suppression of the passenger air bag.
=========================================================================
2008 Hummer H3 Power / Heated Leather Seats.

Driver Seat Components.


1 - Heater Element Seat Back - Driver (KA1)
2 - Lumbar Pump Motor - Driver (AG1)
3 - Heater Element Seat Cushion - Driver (KA1)
4 - S306 (AG1)
5 - S312 (AG1)
6 - Seat Circuit Breaker (AG1)
7 - C307 (AG1)
8 - C308
9 - Heated Seat Module - Driver (KA1)
10 - Inflatable Restraint Seat Position Sensor (SPS) - Left
11 - Seat Motors - Driver (AG1)
12 - Seat Adjuster Switch - Driver (AG1)
13 - Lumbar Adjuster/Heater Switch - Driver (AG1)
14 - Seat Belt Buckle - Driver

Driver Power Connector:

Back of connector.
Orange wire is constant battery power. Use a 25 amp inline fuse
Brown wire is RAP signal or ignition.
Black wire is ground.


Driver Seat Position Sensor.

==========================================================================
Passenger Seat Components.




1 - Inflatable Restraint Passenger Presence System (PPS) Module
2 - Heater Element Seat Cushion - Passenger (KA1)
3 - Seat Belt Buckle - Passenger C1
4 - Seat Belt Buckle - Passenger C2
5 - C320
6 - C315
7 - C318 (AG2)
8 - S341 (AG2)
9 - S316 (AG2)
10 - Inflatable Restraint Passenger Presence System (PPS)
11 - Inflatable Restraint Seat Position Sensor (SPS) - Right
12 - Lumbar Pump Motor - Passenger (AG2)
13 - Heater Element Seat Back - Passenger (KA1)
14 - Heated Seat Module - Passenger (KA1)
15 - Seat Motors - Passenger (AG2)
16 - Seat Belt Buckle - Passenger
17 - Lumbar Adjuster/Heater Switch - Passenger (AG2)
18 - Seat Adjuster Switch - Passenger (AG2)


Passenger Power Connector:

Back of connector.


Passenger Seat Position Sensor.

=========================================================================

Electrical wiring


Passenger Seat, Wire harness swap.

Transfer the seat belt buckles, airbag sensors (SIR), position sensor and wiring harness from the GMC Canyon to the new H3 seats.


Top harness is from the Canyon seat and the bottom harness is the H3 seat.



Combining the Canyon and H3 harness's, remove electrical tape and wire loom.



Passenger wire harness finished:


=========================================================================
Installing new CANYON/H3 harness in to the passenger seat.

Harness layout.



Left plug is H3 power, right plug is Canyon (SIR).



Using a T50 Torque driver, Re-use your original seat belt buckles.
Note: The 2008 H3 seat belt buckle will not fit a 2006 GMC Canyon.



I had to fabricate a bracket to support the seat position sensor.
Note: The passenger seat position sensor was removed from the GMC Canyon seat and installed in the H3 seat.




Swap out seat module and pressure switch. (The correct one is Marked T355)


=========================================================================
Installation Completed:
 

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walking is for the poor
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6,854 Posts
Re: HOW TO: Install Hummer H3 Power Heated Leather Seats & Armrest

very nice write up. I have to say its the best one I have ever seen. very detailed and I'm sure it will help a lot of people. seats look very comfortable.
 

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Registered
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1,578 Posts
Re: HOW TO: Install Hummer H3 Power Heated Leather Seats & Armrest

Nice Right up would H3 seats be a better bench to bucket conversion then using the grand am seats? I'm not to worried about the heated seats part.
 

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CALI BOSS
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6,326 Posts
Re: HOW TO: Install Hummer H3 Power Heated Leather Seats & Armrest

Nice Right up would H3 seats be a better bench to bucket conversion then using the grand am seats? I'm not to worried about the heated seats part.
I would say it is since they are more of a direct replacement. Especially if you get the cloth manual H3 seats.
 

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Member's Technical crew
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12,060 Posts
Re: HOW TO: Install Hummer H3 Power Heated Leather Seats & Armrest

Sweet as hell man, one day I will do this..one day...lol
 

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Administrator
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8,902 Posts
Discussion Starter · #13 ·
Re: HOW TO: Install Hummer H3 Power Heated Leather Seats & Armrest

VERY nice write up! Best I've seen yet.

Thanks for the great feedback.
The write-up was intended to show how easy it is to make the seat work as if it was installed by GM from the factory.
Everything works including the air bag control, power and heated functions.
 

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US Army 19yrs and ......
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45,275 Posts
Re: HOW TO: Install Hummer H3 Power Heated Leather Seats & Armrest

So James that arm rest is a direct bolt on? If so is there a part number for it? I'd be interested getting one for my truck, and the leather is damn near the same as my GP seats!
 

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Administrator
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8,902 Posts
Discussion Starter · #16 ·
Re: HOW TO: Install Hummer H3 Power Heated Leather Seats & Armrest

So James that arm rest is a direct bolt on? If so is there a part number for it? I'd be interested getting one for my truck, and the leather is damn near the same as my GP seats!
You can remove the top console compartment and the H3 arm rest will directly bolt in but I wanted to retain both arm rest compartments.

There is some modding involved, I had to make the H3 leather arm rest fit over the existing Canyon arm rest by re-using some of the hardware from both arm rests. Save your parts!

New H3 leather arm rest $130.00, gm part # 21997041.




Remove hinge and bottom cover from the H3 arm rest.




Using a dremel cut down all plastic screw posts and standoffs to 1 1/4".








Test fit and screw both arm rest lids together by re-using the hinge screws.






Test fit again and align.






Re-use H3 handle by screwing together to existing handle.






Finished.
 

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US Army 19yrs and ......
Joined
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45,275 Posts
Re: HOW TO: Install Hummer H3 Power Heated Leather Seats & Armrest

Thanks for the how to on the center console for the H3/redo. It will be an addition to my truck in the very near future, but with my special twist!
 

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Discussion Starter · #20 ·
Re: HOW TO: Install Hummer H3 Power Heated Leather Seats & Armrest

they are direct bolt in for the buckets but what about a bench conv? are the brackets different for the rado as far as buckets and benches go?
Yes! There are minor differences such as seat height but they all fasten down in the same bolt location.
 
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