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2004 GMC Yukon XL Denali Traction Control

isiisi Posts: 16
At a stop sign or a green light, when I accelerate slowly, the engine cuts power and the "traction control" displays on the computer. This only happens intermittently, and always when conditions are dry and sunny (I live in Florida). It behaves as if I were accelerating on glare ice and the wheels were slipping. To overcome the problem on the scene, I either give it more gas (as the problem happens only on light throttle) or I de-activate the traction control via the button on the dash.
Has anyone had this problem? If so, what is the fix? A bad sensor or a bad traction control module?


  • isiisi Posts: 16
    By the way, the OBD II diagnostic computer can detect NO ERROR CODES!
  • kevin71kevin71 Posts: 4
    I have the exact same problem! Have you found any answers yet?
  • matthewdfmatthewdf Posts: 1
    I have the same problem too. It is very annoying. I haven't yet taken it in to the shop, but I am not having a good feeling about what will come about from it. I have already had to replace the transmission in the truck, and mass airflow sensor. Now the air conditioning compressor has a hole in it, so the A/C doesn't work and the front wheel bearings are going out, so, I am not very impressed with the truck.
  • isiisi Posts: 16
    It seems that the general consensus is that the speed sensors on the front wheels are corroded and that this gives the computer a faulty signal about the actual speed of each wheel, thereby engaging the traction control. The solution is to clean the sensors. I have not yet had time to do this, as it is a lengthy job taking apart the front brakes, etc. For now, when the problem happens, I just reach over and disable the traction control.
    Sorry to hear about the problem with the MAFS and the A/C. Both those parts are not cheap.
  • jdlsierrajdlsierra Posts: 4
    I had this same problem and cleaned the front wheel speed sensors.
    That worked for about 1000 mi then it started again. After two times to the
    local dealer ( they could not find any problem ) and $ 125.00 later . I decided to
    take a chance and replace the front sensors ( approx. 2 hours in my garage )
    and cost approx. $110.00 ( for the set of 2 )at my local chevy dealer. He needed the vin to locate the correct part and it took a couple of days to get. of course they are made in
    Taiwon . That completely corrected my "traction control " problems. I have driven
    approx. 4000 mi with no problems except for the rear wiper that doesn't work.
    73,676 mi and gets 17.5 on the highway.
  • isiisi Posts: 16
    Thanks for the advice. When you removed the sensors, did you first remove the hub and the half shaft, or do the sensors come out without having to take apart the hub?
  • jdlsierrajdlsierra Posts: 4
    you can remove the sensors by first removing your front brake caliper and then removing your rotor, the sensor is attached to the hub with a single allen bolt. I installed the new ones with " loctite " to be sure they stayed in place. This is the setup on my 2004 yukon denali.
    I got to cut grass now so i will check back in 1 to 2 hours.
  • isiisi Posts: 16
    Thanks again for the advice. I will tackle the job in a few days. Right now my son is occupying our hoist.
  • isiisi Posts: 16
    Replaced the front left sensor. Reused the front right as it looked really good. Still have the problem with traction control active. Will try replacing the front right sensor.
  • Hi everyone,
    I have an engine light that goes on and off all the time. I tried new high grade fuel, the gas cap is tight and snapped when doing so but still the light goes on and off.
    I did notice that sometimes when I turned on the high beams the engine light would come on. It usually goes off in a day or two.
    Is it the battery or alternator??
    London, Ontario
  • isiisi Posts: 16
    The "Check Engine" light is usually related to emissions devices.
    For example it could be an O2 sensor, gas cap, MAF (mass airflow sensor) or a number of other emissions related problems. If you know someone with a code reader, check the error code, it will point you in the right direction.
    On my Denali, the gas cap was tight but the light still kept coming on intermittently. It turns out that there was a tiny crack in the rubber ring on the gas cap that forms the seal between the gas cap and the filler neck. A new gas cap solved the problem. Good luck.
  • isiisi Posts: 16
    After replacing both front wheel speed sensors and scoping all 4 sensors, the problem still persists. It is likely a fault in the stability control module, which is epensive to replace and which must be coded to the vehicle by the dealer. So I will not go that route. I simply disable stability control and problem solved.
  • tidestertidester Posts: 10,059
    You may want to try GMC Yukon Small Problems and Aggravations. We'll stick with "traction control" here. :)

    tidester, host
    SUVs and Smart Shopper
  • Thanks! I will try your suggestion.
  • First, Thanks for the speed sensor information. I have had the the problem with the cut in power and the "Traction Active" message for a year now. I have brought the truck into my mechanic countless amount of times for this and of course, it never happened when he drove it. He had spoken to his dealership people and there was conversation about the box under the driver's seat, he has also hooked it up the computer with no messages and cleaned off contacts, none of these things helped. I found this forum and made a copy and brought this to him.

    The problem has worsened to the cut in power at almost every traffic light, toll booth and exit ramp and I'm very careful in pulling out in traffic for this cut in power can result in a collision when you accelerate in front of a car that is too close.

    I have reached my patience limit after driving the truck yesterday and it is now waiting at the shop waiting for the wheel sensors to be changed. I hope it works.
    Thank you again for the information, I will let you know if the new sensors help or if the car gets traded in!
  • So far so good. I picked the truck up from having the wheel speed sensors replaced, I have not had a problem yet after 300 miles and have not had the problem with the power cut out or "Traction Active" message on the dash. I was having this happen so often that if the wheel speed sensors had not been the problem the cut in power, etc would have already reared it's ugly head. My mechanic had mentioned that one of the sensors was cracked before he replaced it. Thanks again for the information.
  • Hi I have a 2003 XL Denali. I too have the same problem the Traction Active engages cutting the power to the truck. Numerous trips to the dealer has not fixed the problem. But in reading all the posts and your recent post I will be printing them and taking them with me.and telling them to service the sensors. Quick question have you had any sort of electrical issues with your vehicle? When I push the drivers heated seat button, the odd time their is a loud buzzing noise thats appears causing the rear passenger door drivers side light to come on then the heated seat shuts off. Definitly a wiring issue again numerous trips to the dealer and no luck..
  • Hello, I still haven't had the cut in power or Traction Active message come up since the wheel sensors were replaced, I actually find that I still unconsciously expect it to happen pulling away from a traffic light, etc. It was not an expensive repair considering the nuisance that it was, it only wound up costing me a little over $100, my mechanic told me he would cut me a break because he had messed with this problem so many times on this truck that he called his "Albatross" and using the info that I supplied him off this site which cured the problem was also a learning experience for him. Not even the GM guys that he consults with on occasion were sure that replacing wheel speed sensors would solve the problem but it obviously did.

    As far as the electrical problem with the seat heater switch, no I haven't experienced that at all.
  • I have a 2005 Yukon XL and had the same "spinning wheel" and traction light problem occur when accelerating from a stop on dry pavement. They said it was a front wheel sensor and it cost me over $300 at the dealership. Now, my entire traction control module is bad, and this is only two months later. I wonder if that was the problem to begin with and they just put a bandaid on the problem. The module that I need is unavailable and has been for a month ! bTW, it is a $700 part and IF it can't be separated from the pump (due to corrosion and it happens about 50% of the time), I will be out another $500 for the pump. I can drive it, but I do not have ABS or traction control, and this has been a hellish winter in Pittsburgh for me under these conditions. How can GMC let critical components to it's flagship vehicle be "unavailable" or "backordered" for over a month??? I'm done with GM. Any comments on the wisdom of finding a used traction control module instead? Let me know.
  • lucy0_0lucy0_0 Posts: 6
    Hello, I have been experiencing the same problem so do you went and had the dealer run it through the machine so it can tell you which sensor was? Please give some advice thank you!
  • I have a 2004 Denali XL and it has just started experiencing the problem with the traction active problem. The messages posted here will be very helpful when I visit my mechanic I was dreading the thought of taking it to a dealer. Has anyone been experiencing a problem where the driver side AC zone starts blowing out hot air but the passenger side continues to blow cold. The only way I found to correct is to turn off the car and restart. Thanks!
  • Hi, Sorry it's taken so long to get back to you, you may have had the problem resolved by now. I never took it back to the dealer, I have a mechanic whom I had to tell him what was wrong with the car after finding the info here. He did replace both sensors a while ago and apparently found that one of the old sensors had cracked. I have not had the problem since they where replaced and that's thousands of miles ago.
  • Thanks for the follow-up! I plan on seeing my mechanic this week armed with the information pulled from this forum. Hopefully I will have the same results as you which i will post to this message board. Thanks again!
  • As of yesterday it has been about 18 months and 15K miles with absolutely no "traction active " messages . Today it starts happening again and I am not trading it. I will probably do the front sensors again and post the result. I have about 88k now and it runs great with little maintenance. I am plagued with some minor problems like the driver seat heater turns on occasionally by itself and usually turns off manually each time . probably a week or so when I can have time for the repair.
  • I have just read all the posts on the Traction Active issue on the Denali - helpful thank you

    My 2004 is doing this, but also the ABS light comes on and goes off frequently and just this morning a sqeal seemd to be coming from the wheel area that went away after a mile or two.

    Any thoughts?
  • tdt1tdt1 Posts: 1
    Hello, I have a 2004 Yukon XL. I have been having problems with my Traction control. I receive this message when I make left turns ( Service stability ) . I have replaced the steering sensor 3 times in the last two months. I had the steering sensor replaced again last week and I now get the service message when I turn Right. My mechanic is currenty looking for answers. Any advice? Thanks
  • I had that light come on, and at the same time felt a momentary loss of forward momentum when starting from a standstill. They replaced a sensor (don't recall what is what called exactly) in the wheel. They said the wheels were getting mixed messages about traction and were improperly causing loss of power because the message meant that I was "spinning", which wasn't the case. Once this sensor was replaced, problem was solved.
  • isiisi Posts: 16
    Re: traction active when starting up on dry pavement - here is your answer: You do not need new speed sensors. If you are able to remove the existing speed sensors without damaging them, take a flat file and thoroughly file down the seat on the hub where the sensor sits. I went through the same problem, and had replaced the sensors but the problem still existed. After filing the hub, the problem went away and has been clear for 6 months. It seems that the corrosion that builds up under the sensors moves the sensor enough to cause it to occasionally lose the magnetic signal from the hub. If a shop does it for you, it is all labor cost, and should not take any more than 1 hour to do both front wheels.
  • Thanks for the information and i will review this with my machanic
  • Hey, did you find out the problem/solution by chance. I seem to be having the same issues, including the squeal noise.
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