The ABS light stays on. At first it was intermittent. The Traction Control message stays lit too, and has been on simultaneously with the ABS light. At first it was just on for a drive and then did not stay on next time. Progressed to point it just stays on -- both ABS and Traction Control -- all the time. When the trouble began, it began with TC operation when not called for (gentle braking in dry condition) and the ratcheting brrrrrrring noise was heard when the ABS and TC came on and stayed on.

Do you know what diagnostic flow charts are ? Every DTC has a factory diagnostic test's to test electrical circuit's , computer , sensor's etc...
DTC C0561 System Disabled Information Stored
The electronic brake control module (EBCM) disables the traction control when other electronic control modules set DTCs for components that effect the operation of the traction control system.
The PCM or BCM diagnoses a condition preventing the engine control portion of the traction control function and sends a serial data message to the EBCM indicating that torque reduction is not allowed. The PCM or BCM will typically set a DTC and the EBCM will set this DTC.
Diagnostic Aids
This DTC is for information only. As an aid to the technician, this DTC indicates that there are no problems in the ABS/TCS system.
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DTC C0242 PCM Indicated TCS Malfunction
The electronic brake control module (EBCM) and the powertrain control module (PCM) simultaneously control the traction control. The EBCM sends a serial data message to the PCM requesting torque reduction. When certain PCM DTCs are set, the PCM will not be able to perform the torque reduction for traction control. A serial data message is sent to the EBCM indicating that traction control is not allowed.

This DTC is for information only. As an aid to the technician, this DTC indicates that there are no problems in the ABS/TCS system.



Your best bet , take it to the dealer where they have factory scanner an can read the info you can't.

Service Traction Control - Stabilitrak and ABS light, Help - Page ...

chevroletforum.com > ... > Tahoe & Suburban

Aug 16, 2012 - Service Traction Control - Service Stabilitrak and ABS light came on. ... Its supposed to still be under warranty, "Major Guard". ... I replaced my rear shocks with OEM re-manufactured Arnott shocks (great company) and in the ...

SilveradoSierra.com • Traction Control, Stabilitrak & ABS Issue

www.silveradosierra.com/.../traction-control-stabilitrak-abs-issue-t18976...

Jan 28, 2014 - Traction Control, Stabilitrak & ABS Issue. Tue Jan 28 ... The wife and I got in to head out and see my brother and as soon as I turned the key the ServiceTraction Control, Service Stabilitrak messages flashed and the ABS light came on. ... check your wheel bearings my was gone and caused the same thing ...

Chevrolet Impala Questions - Hello. I have a 2012 Chevy ...

www.cargurus.com > Questions > Chevrolet > Impala

CarGurusApr 6, 2013 - Occasionally when I hit the brakes I get a Stabilitrak Error Message " ... I believe GM still had 3 year/ 36,000 mile bumper to bumper ... After about 2 months of intermittent noises the ABS light came on, the service stabilitrak warning, servicetraction ... Edit....left hub bearing change after the right one changed.

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For this VCS and traction lights coming ON,its advisable to check/click this help links :----
VCS maintenance required ? http://howtobyme.blogspot.com/2011/11/vcs-maintaince-required-on-toyota-camry.html------- VCS and ABS lights go on and off intermittently? http://howtobyme.blogspot.com/2011/11/vcs-and-abs-lights-go-on-and-off.html
--------Traction control message? http://schematicsdiagram.blogspot.com/2012/01/traction-control-message.html
---------The ABS and Traction Control Lights stays ON dash of car? http://schematicsdiagram.blogspot.com/2011/06/abs-and-traction-control-lights-stays.html
----------This will help.Thanks.

TC = Traction Active

If your vehicle is equipped with the Traction Control system, this message will stay on a few seconds after the traction system stops limiting wheel spin.

This message will appear when the traction control system is limiting wheel spin. Keep in mind that when the warning lights turn on, a fault code is stored in the ABS control module (in this case). Retrieving, diagnosing, and repairing any ABS system faults will be necessary to keep the light off. A common fault with ABS systems are the wheel speed sensors, stored codes may confirm this.

Hope this helps.

The problem lies in one of the ABS wheel sensors. Most likely on the drive axle. Because the ABS sensor is only working part of the time. When it stops working it gives a signal telling the system that the wheel is spinning without traction. In doing this the vehicle computer tells the engine to go into the limp mode. If this is the trouble you may be able to confirm it by removing your foot from the accelerator and reapplying. It should regain power for the few fractions of a second it takes for the ABS sensor to retransmit the failure signal.

chek the brake fliud level. if low light will set light and abs wont work.

Your best to get the system "code read". Withhout seeing the carits impossible to say, it could be anything. Sensor failure, wiring fault etc. Make friends with a good Mechanic.

make sure u didnt break a wire, there are sensors on the brakes, make sure theyre plugged in

The traction control system is controlled through the Anti-lock brake system. The way it works is if one of your wheels starts spinning the ABS applys the brake to that wheel to transfer power to the oppsite wheel that is getting traction. If your ABS is bad then your Traction control won't work. To check it I would find a parking lot on a wet day. In an open space mash in the gas. if you hear the ABS system kick in and you don't squall the tires then your good. My guess is you won't. What I would be worried about is will my ABS work. When checking the traction control is a good time to check the ABS. Acclerate to around 15 mph, then mash the brake as your live depended on it. If you hear a motor run and feel a vibration or grind in the brake peddal, then it works.