Active handling and traction control
Thread Starter
Racer
Joined: Jun 2020
Posts: 427
Likes: 54
From: oroville ca
Active handling and traction control
I have a 2009 coupe and it throws this same code to my gages and not all the time but maybe 3 or 4 times out of ten when I drive it. I can turn the car off and start it again and the code is gone . It is telling me to service the active handling and traction control. So I am not sure how to service these two systems as I was unaware they even need to be serviced. I was hoping someone could tell me what or how to service this code..? Also I was wondering that when that code is on and the dash light is on telling me to service these, is the system activated still or is it off ? As the car doing the burnout light comes on and when that comes on usually it means I turned that off manually with the button.. So not sure about that either . Any advice ?
Le Mans Master
Joined: Dec 2004
Posts: 5,492
Likes: 808
From: West coast CA
I have a 2009 coupe and it throws this same code to my gages and not all the time but maybe 3 or 4 times out of ten when I drive it. I can turn the car off and start it again and the code is gone . It is telling me to service the active handling and traction control. So I am not sure how to service these two systems as I was unaware they even need to be serviced. I was hoping someone could tell me what or how to service this code..? Also I was wondering that when that code is on and the dash light is on telling me to service these, is the system activated still or is it off ? As the car doing the burnout light comes on and when that comes on usually it means I turned that off manually with the button.. So not sure about that either . Any advice ?
Both systems rely on many of the same sensors so they often fail together.
The car has disabled AH/TC because they cannot work reliably under these conditions. The burnout light is on to alert you to this situation.
There are codes stored. To retrieve them you need a code reader that is GM EBCM (ABS) module aware, such as a Tech 2. Super basic generic code readers won't be able to see the EBCM.
Safety Car
Joined: Aug 2017
Posts: 4,243
Likes: 1,133
From: North Myrtle Beach SC
Do you have stock sized tires? When I put 305/35/19 drag radials on mine, it would show the service active handling on the dash. Shut car off and it would go away. Stock sized tires and never see it anymore.
Le Mans Master
Joined: Oct 2000
Posts: 6,507
Likes: 722
From: Sausalito CA
Mine did that too.
I found the connector on the steering column the culprit.
There is a TSB about inserting a "comb" ... do a search.
In my case, even with the comb, I found the connector not secure and I added zip ties to limit movement and that worked for me.
One other area to check is the wiring from the wheel hub to the main harness.
I believe (not confirmed) when the error message is on the dash, those systems are not functioning.
Happy hunting
I found the connector on the steering column the culprit.
There is a TSB about inserting a "comb" ... do a search.
In my case, even with the comb, I found the connector not secure and I added zip ties to limit movement and that worked for me.
One other area to check is the wiring from the wheel hub to the main harness.
I believe (not confirmed) when the error message is on the dash, those systems are not functioning.
Happy hunting
