I recently had some 19" wheels put on instead of the 17s that were on my Z. I've noticed the TCS kicking in at unnecessary times. Sometimes when going through a corner it will come on when there's no reason it should. The tires aren't slipping or anything, and I never had this problem with the old rims. I know I could just turn off the TCS like a lot of people do, but was wondering if anyone else has had similar issues.

 

Explained in great detail in the Top 100 Questions thread - something that all new members are suggested to read.

https://my350z.com/forum/showthread....1&postcount=45

You bought the wrong size tires.

 

Please post your tire sizes, with aspect ratio.

 

Issue with the tire sizes, not so much the wheels.