H3 Traction Control Problem

[smitham]

I need help with the traction control on my H3. This morning my wife got into the truck to drive to work, and when she backed out of the drive and started to drive down the street the traction control kicked in and almost completely stopped the truck. When she let off the gas for a second it finished it?s fit and she could give the truck gas again, then another 1000 feet down the street it did it again. Note we live in Florida it was +70 degrees and dry outside. The truck did this a couple of times then finally quit and she was able to drive to work.

When she left work it briefly came on (traction light flashed for a sec and went off) but it did not put on the brakes and slow her down. When I got home from work I drove the truck and it did the same thing to me as it did for her. Does anyone know what is going on? I did find that if we hold the traction control button for 5-8 seconds and disable the traction control we don?t seam to have a problem, but something is not right. We are trying to set up an appointment with the service department, but for some reason Hummer of Orlando?s phone lines are down today, so we have to wait until tomorrow.

[marin8703]

I dont know whats going on but thats freaky. Im guessing either the computer is going nutz or maybe a sensor or two are reporting the wrong info, but then that should cauze a problem code. My guess is the software is encountering a bug somewhere in the code and thats why, but cant say for sure. could be worse, better to stoping the car randomly and than to accelerate it rite?! good luck and carefull driving.

[whaaaaT]

holding down the button only turns off the stability control not the traction control so that shouldnt help anyway.

[smitham]

After the first occurance my wife called onstar and they checked for codes and found nothing.

[f5fstop]

Originally Posted by smitham

After the first occurance my wife called onstar and they checked for codes and found nothing.

Probably no codes. Did you go to the dealer yet? If not, if you can hold off a day or two.
Check your PM, I have some information, that I cannot release on an open forum.

[whaaaaT]

strange maybe something is wrong with mine too then. Cause that **** dont turn off. The stability turns off not the TC. I had problems with it at the beach. Sometimes it will prevent wheel spin and you dont go anywhere you just sit there twitching in the sand. And when you turn it off it says stability off but the TC stays on and even though the little light is glowing steady. It will blink when the TC is working. Someone else go try to turn theirs off. Cause mine definatley doesnt turn off. Someone go put your h3 on a hill of lose dirt and turn off the TC and see if that light blinks. The little car with the skid marks.

[marin8703]

Originally Posted by whaaaaT

strange maybe something is wrong with mine too then. Cause that **** dont turn off. The stability turns off not the TC. I had problems with it at the beach. Sometimes it will prevent wheel spin and you dont go anywhere you just sit there twitching in the sand. And when you turn it off it says stability off but the TC stays on and even though the little light is glowing steady. It will blink when the TC is working. Someone else go try to turn theirs off. Cause mine definatley doesnt turn off. Someone go put your h3 on a hill of lose dirt and turn off the TC and see if that light blinks. The little car with the skid marks.

same here, when its turned off with the button, there is still something on because wheel spin is still being controlled.

[f5fstop]

Originally Posted by whaaaaT

holding down the button only turns off the stability control not the traction control so that shouldnt help anyway.

I have not had the the need to turn off either, but this is from a bulletin issued by Hummer for '06 model year vehicles:

"This message is to provide clarification to the function of Traction Control and StabiliTrak on the HUMMER H3. Information provided in the Owner's Manual on how to turn off these two features is somewhat conflicting. Automatic transmission-equipped vehicles have StabiliTrak, standard transmission vehicles do not. To turn off both Traction Control and StabiliTrak, the traction control button must be depressed and held for at least 5 seconds. On standard transmission vehicles, the traction control button need only be pressed and released to disable Traction Control."

As for the symptom. I have to check on something, but it could be a defective wheel speed sensor (since I doubt if you have installed stainless steel brake hoses), or the EBCM could be defective or the program scrampled. (I doubt a sensor, since it would react in forward as well as reverse and screw up ABS.)

[H3PAC]

Sounds like it's possessed! I had the stabilitrac kick in for the first time yesterday on an icy corner. It was a very weird experience. I can't say that I liked the vehicle taking control....but it was very brief and probably kept me out of trouble. I can't imagine what it would be like on dry pavement under normal conditions.

[tomp]

ABS sensor on one of the wheels is out and TC thinks it has wheel slippage