Chevy Cobalt Forum

**Jhop16** · 07-26-2009, 02:14 AM

Kay, i put a set of 215/35 R18's on my car, now i'm geting a code saying SVC Tire monitor ?? or something like that its the { ! } thing

**FASTL61** · 07-26-2009, 02:18 AM

Did you switch wheels too?

**Jhop16** · 07-26-2009, 02:24 AM

yah, i wnt from 17's to 18's

**FASTL61** · 07-26-2009, 02:38 AM

you need to transfer over your TPS(tire pressure sensors) which are apart of the valve stems
Either that or if the 18's have sensors in them currently then they need to be programed to the car which might have to go to the dealer;.

**Jhop16** · 07-26-2009, 02:40 AM

lame, can i jsut leave the code?

**FASTL61** · 07-26-2009, 02:55 AM

you can if you want.Its not gonna affect anything

**outtamymind** · 07-26-2009, 02:12 PM

it'll just get annoying after a while. and i've heard rumors of it retarding performance in certain conditions. i've never seen it but i don't have the sensors in my car to test it out.

**Hailcesar75** · 07-26-2009, 02:26 PM

That's wierd. I switch from stock to 225/40 18 and didn't have anything like that happed

**outtamymind** · 07-26-2009, 02:30 PM

if your car is 07 or older you don't have the tire pressure sensors to begin with thus you will not get svc tire monitor light come on.

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