Alright so i just put on my winters. i put a set of blizzak lm-22 245/45r18's in the back. I also put a blizzak lm-22 235/40r18 and a nexen wingaurd sport 235/40r18 in the front. After putting these on the 3 lights came on. what I've learned so far is that it might be because the front are the smaller than the rear. My question is what is the solution to this?

 

turn off vdc at start up (dry weather only)

 

that doesnt solve anything?

 

disconnect the neg terminal and reconnect or reset the ecu (do a search for instructions)

 

You need to run 235/45/18's in the front or something with a 26" Diameter up front. The Rears need to be a 27" Diameter. This should keep the light off. These sizes are only for 2003~2007 G35 Coupe's.

I'm running Michelin X-Ice Xi2 with the following sizes with no problem.

235/45/18 on 8.5" wide rims
235/50/18 on 8.5" wide rims

Hope this helps.

 

tire size difference is way too great. Anything upwards of 3% difference wont play nice. You are @ 5%

 

ya well im kind of stuck with the tires now, cant really afford 2 more. also i got the tires from the previous owner and i dont know why he got the 235/40's. im gonna try 2003g35's method. any other ideas?

 

anyone??

 

Yea, if the reset didn't do anything you are gonna need two new tires for the front in the correct size to meet the diameter req. sorry

 

alright, but is it alright to just drive like that all winter, with the lights on?

 

yea, it's ok... your car isn't gonna stop working or anything bad. Just be sure to reset that ecu when you do put new tires on

 

turn the vdc off every time you get in the car or else your gas mileage will go way down

 

how will my gas mileage go down? and im gonna need my vdc snow/rainy days...

 

your car's computer will "think" the tires are spinning out when they are not and will try to slow you down while you're simply trying to drive down the road. Any time you turn the vdc off on a powerful car, you must be careful as to not spin out becuase this handy computer control will be disabled. Drive responsibly and you will be fine, even in wet conditions.

 

should i be able to feel when the car is slowing me down, because ive been driving it the past 2 days and i dont feel any difference