i odly enough had that same problem a few months back. it like would do late revs and then jerk forward. and the traction control was off it kept saying. idk if thats related but i hit a bump really hard and then idk after a few days it went away and never came back.
According to the former Pontiac dealer here, the TC will turn itself off (and make the light come on) based on an engine fault which causes rough running. Correcting the engine fault will clear the TC light.
Hi everybody glad to be part of this forum , i too have been having this problem for 1 full year now snd lately it has gotton really bad . I tried getting diagnostics but nothing showed up as the light wasnt on . The mechanic told me to come back when the tc light comes back on , he suspects something with some sensor connected to the transmission . Smurphette have you fixed the problem ? Any bit helps as the more i use my car the more my transmission is running to junk
For anyone experiencing this issue, post your codes, they help.
Shot in the dark if you have CEL and Traction, check the wiring harness to the Transmission, its that big plug to the lower left of the ABS module. They have alot of movement and also happen to pass right next to the oil filter housing, and have been known to contact the housing and melting the wiring, allowing it to ground out when bare wires hit the housing. If you are throwing codes like P1801, P1806, ect then this is likely your culprit.
Check the harness and replace it if its damaged. Then attach it to the AC line than runs next to it with PVC/Electrical Tape or Zipties. If this doesn't solve the issue, you might be looking at a new Transmission.
And do a Fluid and Filter Change. There's no such thing as fluid thats 'good forever'