08-16-2013, 12:36 PM | #1 |
Team LFX
Drives: 2012 Camaro LS Join Date: Dec 2011
Location: SoCal
Posts: 328
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LS rims upgrade to 20s problem
Has anyone upgraded there 18 steelies to 20s and had all the traction control lights come on??
I dont know how to get rid of em I have larger tires in the back than the front 275 45 20 245 40 20 Thanks
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08-16-2013, 01:41 PM | #2 |
Drives: 2012 Camaro 2LS Join Date: Mar 2012
Location: Miami
Posts: 113
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I have 22s on mines. The only thing I had to buy was those tire pressure sensors. Dont kno wat the traction thing about
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08-16-2013, 01:43 PM | #3 |
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Drives: 2011 SIM LS3 1SS Join Date: Jul 2009
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U proably need to reset your tmps, not sure why traction control light would come on, when I had my v6 I upgraded to the ss tires and all I did was the relearn function in the dic
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08-16-2013, 01:49 PM | #4 |
Team LFX
Drives: 2012 Camaro LS Join Date: Dec 2011
Location: SoCal
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How do i reset the tmps? Is it the owners manuel? Im looking into that right now
The dealer said the computer thinks i have 18s and so i would need to re caliberate the wheels sensors. The tire shop said geting the tires the same size will fix it Idk whos right
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08-16-2013, 01:55 PM | #5 |
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In the dic when you get to the tmps for each tire hit relearn, You then will be prompted to let air out of each tire so the the tmps picks up the new tires, I think. It's been a while, lost my manual in hurricane sandy but I think that's the way to do it,
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08-16-2013, 04:15 PM | #6 |
Team LFX
Drives: 2012 Camaro LS Join Date: Dec 2011
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I tried that thru the DIC and it would clear then the lights would come on again
But i switchd the front tires to have them all even and it looks so far good Lights are off
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08-16-2013, 05:21 PM | #7 |
Drives: 2012 LS M6, Black Join Date: May 2009
Location: Phoenix, AZ
Posts: 2,045
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If the outside diameter of the tires is off, there will be lights.
And the TPMS relearn procedure for the newer cars has to be done with a scan tool, as the let-air-out-thing doesn't work on a '12+. John B.
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08-16-2013, 08:52 PM | #8 | |
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Quote:
Dean. |
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08-16-2013, 10:48 PM | #9 |
Drives: 2016 1LT RS Camaro; 72 Chevelle Join Date: Apr 2008
Location: Central Point, OR
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Its your tires, they are too different size wise. One is 29.7 inches, the other is 27.7 inches tall. I don't know how close they need to be exactly, but I want to say the tires need to be within 1/2" of each other in height. Maybe up to 3/4"?
The current tires I'm running are 27" tall, and I got a flat last week so I'm running the spare tire on the drivers rear, the spare tire is 26.5" tall... I am not having any problems with the stabilitrak or abs lights coming on etc. (.5" difference) If I run the factory LS steel wheels/oem tires on the front which are 28.6" tall, and my current 27" tall on the rears (1.6" difference), I do get stabilitrack and abs lights. Best go tire shopping if you want the lights to stay off and more importantly, be safe. Last edited by Jason@JacFab; 08-16-2013 at 11:48 PM. |
08-17-2013, 11:04 AM | #10 |
Drives: 2012 LS M6, Black Join Date: May 2009
Location: Phoenix, AZ
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Skibik, thanks for the heads up. I have Discount Tire do my rotations, since they rebalance them at the same time and all for free, so they use a scan tool and I get to read Road and Track while I wait.
RacnJsn, thanks for seconding what I thought I remembered from another thread about height differentials playing havoc with the systems. John B.
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08-19-2013, 08:19 AM | #11 |
Drives: 2014 1LS M6 Supercharged Join Date: Feb 2011
Location: New Britain, Ct
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I agree with racnjsn, Tires are diff. dia. so front and rear are reading diff. speeds. Thats probably why the traction control light comes on. I assume the 45/40 is the front tire?? why did you pick 40's for the front?? I would have picked the same as the rear 45/45
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08-19-2013, 12:14 PM | #12 |
My Dream Car
Drives: 2011 SIM LS3 1SS Join Date: Jul 2009
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that is wierd, I had no issues going from my 18' t0 stock ss 20's when I had my v6. The tmps picked up the tires and the speedo was fine. I even had vince at trifecta check it and he said it did not need to be changed,. In any case at least it worked out for you
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08-19-2013, 12:37 PM | #13 |
Drives: 2014 2SS/RS Convertible Join Date: Jun 2013
Location: Lake Orion, MI
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I agree with what a few others have said. It's not the overall size of the tires that is the problem, it's that you have different diameter tires front to back. They are rotating at different speeds and the car is probably interpreting this as wheel slip. There may not be anything you can do other than get larger front tires to match the back.
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08-19-2013, 12:46 PM | #14 |
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youre 4 tires need to be of the same Diameter if you want to get rid of the lights.
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