Help my DIC say "traction sys active"

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Apr 25, 2010 | 08:54 AM

bs180785

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3rd Gear

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Help my DIC say "traction sys active"

Hi, can someone help me? my DIC say "traction sys active" when I drive down the road and then I lost the throtle. I have to turn the traction sys off get the throtle again.Can it have somthing to do with the tires? I have put new tires on with a difrent sise (285/30-18)??

Apr 25, 2010 | 10:01 AM

dougbfresh

Le Mans Master

Joined: Nov 2005

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Quote:

Originally Posted by bs180785

If they are the same diameter YES, it's your tires.

Apr 25, 2010 | 10:07 AM

Y2Kvert4me

Race Director

Joined: Oct 2002

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From: Gone

CI 6-7-8-9-10 Veteran

St. Jude Donor '03

A 285/30/18 is way too short for a rear tire.

If you are running that size all around, switching to a 285/35/18 size on the rear should fix it.

Quote:

Originally Posted by 8VETTE7

If the front are not at least 1/2 inch taller than the rear you will certainly get the symptoms you have!!!!!!!!!

Wrong.

The rears must be taller than the fronts to avoid this issue.

Apr 25, 2010 | 10:27 AM

dgrant3830

Tech Contributor

Joined: Dec 2006

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From: Van Buren Arkansas

Wounded Warrior Escort '11

Probably your tire sizes as noted already. Pull your codes and see if anything is there. FYI, with software, you can change the tire sizes in the computer.

Apr 25, 2010 | 10:55 AM

Y2Kvert4me

Race Director

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From: Gone

CI 6-7-8-9-10 Veteran

St. Jude Donor '03

Quote:

Originally Posted by dgrant3830

FYI, with software, you can change the tire sizes in the computer.

Only for speedometer correction.

The TC system cannot be "tuned" for incorrect tire sizing.

Apr 26, 2010 | 03:12 PM

bs180785

Thread Starter

3rd Gear

Joined: Mar 2010

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Thanks

Thanks for some good advices. my front tires are 255/40-17.

Apr 26, 2010 | 03:22 PM

Y2Kvert4me

Race Director

Joined: Oct 2002

Posts: 16,477

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From: Gone

CI 6-7-8-9-10 Veteran

St. Jude Donor '03

Quote:

Originally Posted by bs180785

Thanks for some good advices. my front tires are 255/40-17.

Yeah, your current rear tires a bit shorter in height than that size front, this is the problem.

Switching to a 285/35/18 or 295/35/18 on the rear will solve it.