07-18-2011, 05:07 PM | #1 |
Drives: 2020 Camaro convertible RS Auto Join Date: Feb 2010
Location: Illinois
Posts: 887
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Does going from stock 18 rims to stock 20 rims require a dealership visit?
I'm going from the stock 18's to stock 20's rims and tires. I called the dealership today to schedule an appointment and they wouldn't do it unless I allowed them to "reprogram" the car to work with the 20's. Of course this was at an extra 100$ cost to me. They claim that if I do not do this "reprogram" I will get ABS lights, traction control lights, and check engine lights. Now I've swapped out rims and tires on other cars and never heard this before. I figured my spedo would be off a bit and that was it. Anyone have any input on this...or is this just a shady dealership tactic to get my money?
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07-18-2011, 05:10 PM | #2 |
El Chupacabra
Drives: 2011 2SS/RS A6 Black/Black Join Date: Jun 2011
Location: Lakewood, CO
Posts: 923
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Sounds like BS to me. The stock 20s with tires should be the same diameter as the stock 18s with tires.
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07-18-2011, 05:51 PM | #3 |
Obsessed
Drives: 2016 Hyper Blue 2SS RS Join Date: Jun 2011
Location: Riverview, FL
Posts: 2,603
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I'd call another dealer and check. Keep those old rims for snow tires!
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07-18-2011, 06:43 PM | #4 |
I also went from the 18s LS rims to the stock 20's SS and I have no problems at all, I even had a mechanic buddy ride with to make sure that i did not a Balance or anything else and it is all good smooth as silk and no lights they are feeding you a bunch of BS. BTW I like your Camaro!!!!
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07-18-2011, 06:50 PM | #5 |
Drives: ( . )( . ) Join Date: Feb 2010
Location: San Diego, CA
Posts: 2,827
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Youre dealer is a ripoff, The overall diameter of both are the same. The only think they would need to program are the TPMS, but you can do that for free using the cars DIC, The procedure is explained on the manual.
Also you need to make sure the 20" youre installing have TPMS already installed in them. Good Luck. |
07-18-2011, 06:53 PM | #6 |
2010 SIM Beige RS 6M
Drives: SIM RS 6M 66 Corvair Silverado LTZ Join Date: Oct 2008
Location: Kamloops,British Columbia
Posts: 4,677
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I switch back and forth each winter /summer.
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07-18-2011, 06:56 PM | #7 |
Master of All Things
Drives: '20 Corvette Stingray Join Date: Jul 2009
Location: Southeast of Houston, Texas
Posts: 22,331
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well you know......everybody before me already said it.....AND THEY ARE RIGHT.....Start using another dealer/service department, I don't care how far away the next one is....I wouldn't give them a dime of your money....EVER!!
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07-18-2011, 07:09 PM | #8 |
Drives: 2011 Synergy Green Camaro LT Join Date: Jul 2011
Location: Lakeland, FL
Posts: 830
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Stock 18" 28.61"
Stock 20" 28.68" Front Stock 20" 28.66" Rear No reprogramming needed. They just want your money. |
07-18-2011, 07:14 PM | #9 |
Drives: 2020 Camaro convertible RS Auto Join Date: Feb 2010
Location: Illinois
Posts: 887
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Thanks for the input...i was already calling BS on the reprogramming just wanted to be 100% sure. Gonna have the tires put on by the local auto shop for 30$ and program the tpms myself. Can't wait to see how it looks with the midnight silver 20's! hopefully I can get it taken care of this weekend.
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07-18-2011, 07:25 PM | #10 |
Drives: 2013 VR ZL1 Manual Join Date: Jun 2011
Location: Columbus, GA/Phenix City, AL
Posts: 173
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I swapped my 18's to 20in wheels and put the stock 20 tires sizes on them and if Im doing 70 on my speedo, according to GPS Im doing 72 so Im thinking your dealer is full of it.
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07-18-2011, 07:28 PM | #11 |
For some reason my GPS are says I am going 1-2 MPH Faster then what I am really doing even with the stock tires!!
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07-18-2011, 07:30 PM | #12 |
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I put 20's on mine and I read my speedo at 60 and I am really doing 58 according to my GPS.
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07-18-2011, 07:32 PM | #13 |
Drives: 2013 VR ZL1 Manual Join Date: Jun 2011
Location: Columbus, GA/Phenix City, AL
Posts: 173
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Yeah. Im sure my speedo is acually correct. I was just saying that to prove the OP dealer is full of BS and trying to rob his money for nothing
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2013 VR ZL1 Manual #0801. Airais CAI, More to come........
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07-19-2011, 10:08 AM | #14 |
I'm guessing the only thing you won't get is the speed limiter bumped up. The 20's have a higher speed rated tire than the 18's.
It only really matters if you want to go faster than 118. |
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