Traction Control Question
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Joined: Feb 2012
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From: Boiling Springs SC
Traction Control Question
What would make the traction Contol come on when I am in 6th gear on dry pavement when I accelerate? Is this normal? It also does it when the cruise control is on and it needs to accelerate or if I put the pedal down to speed up. It will not take off and go unless I turn it off!!!! Very unsafe and annoying.
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Joined: Feb 2012
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From: Boiling Springs SC
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What size tires are you running front and back???
Pull your codes and post them:
http://www.c5forum.com/ayc/dtcdic.php
Include the H or C or HC that follows the 5 position code.
Pull your codes and post them:
http://www.c5forum.com/ayc/dtcdic.php
Include the H or C or HC that follows the 5 position code.
Tires Front 245/45/17 and Rear 245/40/18 ZP
There Michelin Pilots A/S Plus 90% Tread (Rears are zero pressure). I am not sure why previous owner went smaller on the rear but at $300.00 a pc. I am going to run them!! LOL
Drifting
Joined: Feb 2008
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From: Bahama North Carolina
There is your problem. The tires are the same diameter. On a C5 for the traction control to work properly the rear needs to be at least a half inch larger than the fronts. Factory is closer to one inch.
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Joined: Feb 2012
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From: Boiling Springs SC
OK Thanks I was afraid that was the case. Well i will be selling these maybe someone can use on the front.
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Joined: Feb 2012
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From: Boiling Springs SC
As BigGun pointed out, for the combination of AH and TC to work properly the rear tires need to be at least 1/2" larger in overall diameter than the front tires. Don't go over 1 1/2 " larger or the AH/TC may not function correctly when needed. If you want to run the rears you currently have and avoid the symptoms you are experiencing, you will need to put the car into "Competitive Driving" mode each time you start the car. This avoids the symptoms you are experiencing but means you are on your own if you get into a handling situation where the AH/TC combination is better prepared to control the car than the driver is. GM recommends only using Competitive Driving mode in a competition situation.
