Im running a 235/40/18 285/35/19 for my autocross tires, always run these with traction control off. The other day I drove with this setup to get an alignment and around 30mph the traction light would start flashing. my guess is the taller front is upsetting the computer, has anyone ran these sizes and had or not had issues?

 

Ran same setup in front (had 285/30 in the rear) Never had issues (non SRT) with traction light.

 

You mean wider? 40 is stock height.

 

Thanks for the confirmation,
And wider shouldn't effect in any, the sidewall is taller though even with the same aspect ratio, that's what we are guessing is the issue

 

Running 235/40-18 on front and 275/35-19 on back of both 05 Limited and SRT6. Never a traction warning from either. Maybe doing a throttle reset will help as I did this on both after tire changes.

 

Running 285x35x19 on a 9.5" wide rim on rear... no traction light...

Had a couple of traction light(wiggle light) during the Spring run trying to keep up with Nick...failed!!..What a blast...Thanks Nick...Carl

 

I've tried 235-40-18, 245-40-18 and 245-35-18 up front, with 235's, 255's, 265's, 275's, 285's and 295's with anywhere from 30 - 35 profiles in both 18 and 19 inch in the rear with no issues with the traction control.