[winnarizona]

This is an old link, I have a 2004 4X4 Chevy Quadrasteer. There is one dissapointing thing about the Quadrasteer. That is they do not make it any more. I will rebuild and restore the one i have till the day i die. Unless they bring it back. Once ya go Quad, you can never go back. It has ruined my life! I can afford a new truck, but I can't let go. I would not sell it for the 50K i paid for it. Not sure i would take 100K. Full size extended cab truck with the turning radius of a Toyota Camery. Not for sale.

 

[ljtyphoon]

If people would have driven a Quadrasteer truck they would have bought one!! People mention 15,000 mile fluid change, but it is not mentioned in manual for my 04. It calls for GM part #12378557 with no friction mod.(limited slip additive may be already in?) Do some of the Quadrasteer vehicles call for this service in their Maint. Schedules or is it just good P.M?
I know my 99 TA calls for rear end lube change.. so maybe GM thought the Dana 60 didn't need no stinkin badges, I mean maintenance.
LJ

 

[04 chevy quadrasteer]

Purchased mine in 04 with 7k miles. It was a gm exec. Vehicle. Never titled until me. Bought the extended warranty in case . It replaced a water pump, cracked flywheel, Bose amp, ac compressor. I replaced a leaking front shock at 80k miles along with same side wheel bearing. I had the same clunking sound in the reared when reversing. Replaced reared fluid and got rid of it. Just had a 4x4 sensor replaced and dash switch for 700.00 ouch. The chevy dealer always calls me days after my service to try and buy my truck. I tell them to sell me a new quadrasteer.sorry! Everyone that see's it coments on it. I put 20" rims and bigger tires on it and painted all the black trim silver birch exterior color. Clear cab lights. Clear marker bedside lights. Billet door handles.billet grill. And........still haven't had a single issue with the rear steering! I love it! Contact me if you want. 602-920-0086 jeff

 

[ljtyphoon]

I own two Quadrasteer Suburbans.

One is a 2005 GMC Yukon XL 2500 4wd Quadrasteer. Her name is Olivia, and I have had her since she had 6,000 miles on her. She was a GM executive car. She now has 80,000 miles on her, and she pulls a 7400# Airstream travel trailer on a regular basis.

The other is Daisy. Daisy is a 2004 Chevrolet Suburban 2500 2wd Quadrasteer. I bought Daisy two years ago when she had 23,000 miles on her. She now has 60,000 miles on the odometer. Daisy also pulls the Airstream long distances on a regular basis.

Neither Olivia nor Daisy have given me a moment's trouble with their Quadrasteer units. I have always had the Quadrasteer units serviced at a GM dealer every 15,000 miles, as recommended. I run both the girls in the four wheel steering mode at all times, and in the four wheel steering trailer mode when towing the Airstream.

I absolutely love the Quadrasteer. That's why I bought Daisy as a back-up tow vehicle. I want to extend the Quadrasteer experience as long as possible. I refer to Olivia and Daisy as my "Trick Suburbans". They can out maneuver a Honda Civic in a Wal-Mart parking lot, and do things with a 25 foot travel trailer that are downright astonishing.

The Quadrasteer option was somewhat expensive. When introduced in 2003, the Quadrasteer option was $4995. Buy 2005, it had been reduced to $1995. In the Silverado and Sierra, it was offered on both the 1500 and the 2500. In the Suburban and Yukon XL it was offered only in the 2500 series as the Quadrasteer unit requires a rear leaf spring suspension. 1500 Suburbans had already gone to rear coils by that time.

Quadrasteer Suburbans are quite rare, but are always easy to spot on the road. They have the five amber front roof marker lights, amber and red marker lights fore and aft of the rear wheel wells on extended splash guards, and and three red marker lights on the rear directly above the center stop light. At first, I thought that all these lights were just a little bling to ID a quadrasteer. I later found out that they are required by Federal Regulations, as a Quadrasteers rear track is greater that 82". That's why you always see these clearance light on dually pick-ups. A Quadrasteers rear track is 5" wider than its front track.

I would really love to see GM reintroduce the Quadtrasteer.

Here is a shot of Daisy at work.

So your vehicle calls for lube change at 15,000 miles in maint. schedule? Mine says nothing about lube change, did your dealer just suggest that? Would like to know if the SUV versions had different maint. requirements then the Quadrasteer trucks, and if so should I change the fluid when my truck gets that many miles on it.
LJ

 

[Jetman]

The Quadrasteer truck is truly amazing as well as unique. I bought mine when it was a couple of years old. I had heard of them but never driven or seen one up close. The Denali level creature comforts are, of course, outstanding but it was indeed the Quadrasteer that sold the truck! Living in snow country, I had to have power to both axles but all wheel drive AND all wheel steering is a fantastic combination. Then one winter I needed tires and decided to add Blizzak tires. WOW! I'm still making amazing turn arounds but also backing loaded trailers up steep driveways in the snow. There is no appreciable difference in driving on snow or dry concrete.
I would like to buy a new truck again some day but, like some others have said, I am now stuck with my '04 until it dies, I die, or one of the manufacturers wakes up and once again offers this option. I LOVE this truck.
The axle is based on the Dana 60 and its bulletproof. In my model, it requires no attention, early fluid changes or special fluid. If you look underneath, it is well protected. Remember when you take it in for alignment that they probably will not know they can adjust the rear just like they do the front, so tell them; "align both axles." The only caution I have ever heard came from a GM service manager (personal opinion - not from the factory) and is for a boat owner not to back it in so deep that the Quadrasteer computer is totally submerged. It is well placed and up high and that would be VERY deep indeed. Continous rain and water is never a problem so I don't know how valid that caution is.
The false "Service 4 Wheel Steering" warning is real but very rare. Regardless of temperature you can sometimes cause it to come on by parking with the wheels (front and rear) cramped at a large angle. It handles it that just fine but when you next come out to start the truck, it doesn't like figuring out where everything is pointed when the computer first wakes up. Again, just straightening the wheels, turning the ignition switch off and back on fixes it every time. If you are one of those guys that slams the door twists the ignition and throws it into gear in one fast motion, you will see this light. You can select 2ws anytime. When you ask for 4ws it helps to have everything already straight.
The Quadrasteer computer like lots of input and if it doesn't like the results it locks out the rear axle and defaults to 2ws. One other quirk you can cause happens when you are rolling down the road and throw it into neutral. This condition makes no sense at all to the computer so it turns on all the mode lights and goes to 2ws. I think this actually comes from the trucks ECM because the AWD system can no longer talk to the wheels even though it knows they are turning. That information goes to the QS computer and it defaults to the safe mode of 2ws. Again, you have to make this happen; otherwise you'd never be in this condition.
The only operational thing I ever think about is if you happen to go to one of the old fashioned car washes that have the round steel rails close in on both sides to guide you. I have found that because of the wider track these are closer to the rear tires. Not a problem and the truck and steering don't care but if you turn the wheel too much when exiting the rear tires will squeal against the rails. Again, it doesn't hurt anything but I just switch to 2wd before entering and it doesn't happen.

If you have a chance to buy one of these rare trucks; DO IT! And if you don't fall in love with it, I know plenty of guys that will take it off your hands.

 

[glenmoorehead]

Help! I have a 2003 Chevy Suburban and need to replace my Quadrasteer module. I am told they do NOT make one anymore and need to replace the whole thing. Please help me find one. Glen Moorehead

 

[4wheelzuzem]

I have the Sierra Denali 2004 with quadrasteer. I've looked at new trucks now for two years and have to say I can't give up the convenience of the quadrasteer. In 12 years they have never made a better option that can make me switch trucks. Most people that ask me whats wrong with my back tires know nothing about quadrasteer. It's always a fun time when I tell them the back tires are suppose to turn. Most people say what the hell for. This tells me how bad GMC marketed this option. If it was still available it would have taken off with a bang. People cant believe it turns as sharp as a Honda civic. Unfortunately after ten years of problem free convenience I have to bring it in for a service as it is not engaging. I hope it is not a module or we will both be looking. I will pay anything to get it back. My wife and I can't stand the truck any more after only a week without the quadrasteering. You don't realize how convenient it is until your without it. If I lose it I may buy a Dodge, their the only ones coming out with some innovative stuff, maybe we can count on them to give us a new truck with quadrasteer. I've given up all hope of GMC ever doing anything. The fact that GMC don't take care of their customers after only ten years really puts a halt to me ever buying a product from them again. I'll see what happens Wednesday when she goes in. If they cant fix mine and they don't sell a new quadrasteer i'm gone. 30 year Chev/GMC fan will be out of there....very sad. I'm sure we will fix it though just take some searching and get er done. Be good for another ten years. Its saved me more money over the years anyway as I would have bought 2 new trucks from them by now if the quadrasteer was still an option.

 

[doh]

Seems like there is quite a following for the Quadra Steer. To bad it was an $8700 CDN option at the time, and I never personally ordered 1. After I left the dealership they did order 1 as a Sold Unit, and it is still around town.

 

[fish5225]

Can anybody tell me the common problems with Quadrasteer trucks? What were the service issues? I'd like to purchase a used one but I'm not sure what bad things to look for. Why Did GM stop the offering of Quadrasteer?
I'd prefer a non Denali. I don't want or need all wheel drive or all those creature comforts. And the 5.3 would do just fine for me.

I bought mine new in 02. Best option ever. Did I tell you best option ever! If gm would have marketed to us city dwellers, ie makes your truck so easy to maneuver and park, they would have sold millions. I will keep this truck till it dies. Maintenance is simple, change of fluid. I supercharged my truck and have over 700 hp through drivetrain. QS has been flawless. Again best option ever! Gm please bring it back.

 

[L2dabox]

I am considering buying a used GMC Sierra Denali Quadrasteer. I'm mostly concerned with the parts and service of the Quadrasteer system. Can I get any input/suggestions?

 

[fish5225]

Can anybody tell me the common problems with Quadrasteer trucks? What were the service issues? I'd like to purchase a used one but I'm not sure what bad things to look for. Why Did GM stop the offering of Quadrasteer?
I'd prefer a non Denali. I don't want or need all wheel drive or all those creature comforts. And the 5.3 would do just fine for me.
AJ

I bought mine brand new 11 years and 150k miles ago. Bet invention ever for a truck. No real issues. He fluid change is expensive but unit has been bullet proof. Gm did a crap job of marketing. Had they let anyone know how they turned in tight spaces every soccer mom in the country would of been tooling around the suburbs in their suburban! I haven't even thought of a new truck until this year due to this option. Unfortunately my suicide doors leakso much air on the highway I can't hear the radio so i buying a new truck but I will still keep this one for in town.

 

[dl95]

Purchased my 2003 Suburban Quadrasteer new and was lucky enough to do it when the option cost the most. Soccer Mom/Family travel vehicle. ~120K miles.
Would buy a new one if I could, since everything every one says is true about how great Quadrasteer is. That is when it is working.
Unfortunately we were not among the many posting here that seem to have gotten a bullet proof setup.
Over the last 11 years we have had it in the shop twice before at about $1K each for various module change-outs and harness "adjustments" that always seemed to keep it running for about a year. Then over the next several years it would degrade until we either brought it back in to the dealer, or as I stand now, I am learning the systems myself with the intention of self repair forever. Degrade is to kick out of 4WS back to 2WS and state "Service Quadrasteer"
We REALLY do not want to live without this truck with it's Quadrasteer functional.

The challenges as I see them to owning a Quadrasteer are as I seem them are as follows:
1) Replacement Module Availability
2) Expertise/Equipped to repair

These are now what I believe to be the three most likely modules to fail.
For my 2003 Suburban:
26091590 Sensor Kit, Rear Wheel Steering position. Available
26108739 Motor Kit, Rear Wheel Steering Actuator. Available
15087554 Module, Rear Wheel Steering Controller. Discontinued?, Unavailable? Some seem willing to take money ($1200-1300), but doubt they have stock.

As far as Expertise, the basic problem is that there were so few sold and they are all spread out, that no dealer ever gets to work on more than one or two if any. As far as equipment to diagnose, the diagnostic codes for Quadrasteer and controls are not part of the OBD2 specification and are proprietary to GM. You can only get this DTC information, perform a relearn after a module replacement, or download any updated software using the GM TECH2 diagnostic tool. This leaves you at the mercy of the dealer that has not experience with the system.
I have decided to solve the Expertise issue by learning this system myself. Given other issues I have fixed on this complex vehicle related to bad wiring and connectors, I am highly suspicious that some previous module replacements were not needed. I have been able with many hours of searching to locate all the schematics, diagnostic info and part numbers via google.
So far the dealer that sold me the car was cooperative when I brought the vehicle in for a quick TECH2 scan. They said $99, but I came prepared and got screen shots of all the data screens on the TECH2 in about 15 minutes that I needed, so they did not charge me. Note that you can get a TECH2 for about $3-5K, but if you want to update software, you also need to buy a license for online access for a fixed time or annually. There are Chinese knockoffs available for around $450 with shipping, that may or may not be at least able to read the Quadrasteer data streams, if they work at all. never heard of anyone trying one of these cheap ones with Quadrasteer. If you have and are reading this, please chime in. I would take the risk and buy one if I knew it should work. The data available via the TECH2 in regards to the Quadrasteer system is quite extensive and far more than just DTCs. Actual voltage readings from all the sensors involved, and for the battery feeds to the controller module. Steering angles etc.
In my case, the Quadrasteer is working fine and we captured readings for straight ahead and steering wheel 180 right and left. Then "Service Quadrasteer" message appears and it shuts down to 2 wheel steering. The TECH2 is still communicating with the controller module, and to our surprise, the Main High Current Battery feed which had been at 13V was now reporting only 2.5V, while the Switched Ignition Battery input was still reporting ~13V. So, this is either in the Wiring from the battery, or inside the Main controller module where the voltage sensing circuit resides. That would be the discontinued module.
I am still in mid diagnosis as I write this. The main power wiring is as follows. Directly off Battery + Terminal red wire to a stand alone 125A Mega fuse hidden under the plastic cowl of the engine compartment fuse block. Then from this Mega Fuse over red wire all the way back to the Quadrasteer Control Module. There is a main black ground wire that also runs from the Alternator bracket in the engine compartment all way back to the Quadrasteer module. I read that sometimes the Mega fuse is loose. Mine seems OK, I was unable to detect any voltage drops in the engine compartment on these lines. Next stop is back to the controller module itself.
My fear is that this will be internal to the Controller Module. If your reading this and you have a Quadrasteer controller module GM 15087554 to sell, please let me know. Otherwise I may have no choice but to crack mine open and reverse engineer it.
Any chance anyone has Schematics for the internal circuits on the Quadrasteer Controller? Ex. Delphi employees?

Sorry for the ramble.
Would I buy a used Quadrasteer vehicle?
Maybe not today, but if the guy selling it could look me in the face and say he has never had a lick of trouble with it, then I might just have to trust him, as I cannot live without one any more.
If controller modules truly cannot be replaced, I would have to think twice about getting hooked on this particular drug.

 

[domano 68]

Purchased mine in 04 with 7k miles. It was a gm exec. Vehicle. Never titled until me. Bought the extended warranty in case . It replaced a water pump, cracked flywheel, Bose amp, ac compressor. I replaced a leaking front shock at 80k miles along with same side wheel bearing. I had the same clunking sound in the reared when reversing. Replaced reared fluid and got rid of it. Just had a 4x4 sensor replaced and dash switch for 700.00 ouch. The chevy dealer always calls me days after my service to try and buy my truck. I tell them to sell me a new quadrasteer.sorry! Everyone that see's it coments on it. I put 20" rims and bigger tires on it and painted all the black trim silver birch exterior color. Clear cab lights. Clear marker bedside lights. Billet door handles.billet grill. And........still haven't had a single issue with the rear steering! I love it! Contact me if you want. 602-920-0086 jeff

Where did you get the clear cab and marker lights? Any pics please? Thanks!

 

[4wheelzuzem]

I have the Sierra Denali 2004 with quadrasteer. I've looked at new trucks now for two years and have to say I can't give up the convenience of the quadrasteer. In 12 years they have never made a better option that can make me switch trucks. Most people that ask me whats wrong with my back tires know nothing about quadrasteer. It's always a fun time when I tell them the back tires are suppose to turn. Most people say what the hell for. This tells me how bad GMC marketed this option. If it was still available it would have taken off with a bang. People cant believe it turns as sharp as a Honda civic. Unfortunately after ten years of problem free convenience I have to bring it in for a service as it is not engaging. I hope it is not a module or we will both be looking. I will pay anything to get it back. My wife and I can't stand the truck any more after only a week without the quadrasteering. You don't realize how convenient it is until your without it. If I lose it I may buy a Dodge, their the only ones coming out with some innovative stuff, maybe we can count on them to give us a new truck with quadrasteer. I've given up all hope of GMC ever doing anything. The fact that GMC don't take care of their customers after only ten years really puts a halt to me ever buying a product from them again. I'll see what happens Wednesday when she goes in. If they cant fix mine and they don't sell a new quadrasteer i'm gone. 30 year Chev/GMC fan will be out of there....very sad. I'm sure we will fix it though just take some searching and get er done. Be good for another ten years. Its saved me more money over the years anyway as I would have bought 2 new trucks from them by now if the quadrasteer was still an option.

Had the 4 wheel steering fixed, any dealer can fix it even without the parts available so long as machine shops exist. Anything can be repaired for a price. Cost me $1500 because of salt corrosion to the housing that needed to be replaced due to the bolts that snapped in order to replace the sensor. Been problem free for the first 9 years and problem free ever since the fix. I have paid more to have my air conditioning fixed on other vehicles I have had so $1500 is a bargain. I was prepared to spend up to $4000.00 to get it back but like I said $1500 was a deal. After trying out the new trucks I don't have much to say, I will keep this one until the frame falls off then I will somehow weld the axle to a new truck, maybe a ford or dodge and hook the wiring up. Chevy/GMC are not too sharp as they don't seem to listen to the customers wants,..... thanks for stability control but I don't need it when I have 4 wheels that turn to get me out of a skid. Stability control applies brakes to the front tires to pull the vehicle out of a skid which causes the front wheels to lose traction. With 4 wheel steer you don't need to apply brakes that cause your front wheels to stop free rolling QS straightens and corrects the skid without applying brakes and feels 100% more natural. Stability control surprises the driver with a surprise braking that feels just wrong, like you just slipped into a mud hole,...... thanks for the crappy options for the past 10 years they have been more than disappointing. And how have you helped the consumer to maneuver these vehicles, oh yes with cameras that come on when you put it in reverse but by the time the screen comes on I have already put it in drive and completed backing up and if you happen to use the camera it is usually blocked by salt or mud so its still a big vehicle with 2 wheel steer that is hard to park. And what have you done for ride control, I have two settings, how many settings do the new trucks have, or do they have that option. As far as what you've done to help pull a trailer is embarrassing where 4 wheel steer gives 0 trailer whip when passing/changing lanes. You have offered no help to the consumer to control your trailer when backing up. Quadra steer offers the best control for backing a trailer and you take away that convenience and replace it with nothing. Am I rambling, I guess I am. After reading all the posts its obvious 4 wheel steer is great and its frustrating that a manufacturer cant see that. Hopefully it comes back.

 

[Lowboy]

After reading all the posts its obvious 4 wheel steer is great and its frustrating that a manufacturer cant see that. Hopefully it comes back.

Who owns the rights to Q-steer now?
The division was GMs Saginaw steering gear that designed it, spun off to Delphi, run through BK and bought by a Chinese firm as Nexteer. That former SSG/Delphi facility is still in operation. So is GM holding on to some patents while refusing to offer it and not allowing others to buy it?

 

[wendal]

I am looking at a 03 1500 with 172000 miles, with quadrasteer
Do you think that is to many miles?
I have read about parts that may or may not be made anymore.
Is their a place to look for parts?

 

[wendal]

Can a different rear end be put under the pickup if parts dried up?
Not ideal but might be the only way to get it back on the road.

 

[hotrdd]

I know its an old thread but I am wondering if someone can tell me if there was a difference between the axles in the 1500 and the 2500? I have a neighbour that is scraping his Yukon with Quadrasteer and I am considering putting it under a 2500 truck. But I need it for towing. Can I change the suspension components and make this as strong as a regular 1 ton pickup truck?

 

[Dreamline]

I believe the the axle in a 1500HD and 2500 is a full floating axle with 8 lugs as opposed to a 1500 which has 6 lugs and has the bearing around the axle. If its a 2500 Yukon - no problem.

 

[Lowboy]

Can I change the suspension components and make this as strong as a regular 1 ton pickup truck?

No.

For starters the Q-steer used a Dana 60 center section with a 9.75" ring gear where as a true 1 ton had either a 10.5" or 11.5".
Then there is RAWR, electronics, etc.