hey guys,

i just bouhgt a used CTS 2 month ago. I dont know anything about it. One question i have is the coolent level. everytime i crank it it says check coolant level. then i have to clear the screen. i finally tried to check it today and discoverd that there is no radiator cap. antleast there is not one i can see. Anyone know what i should do?

most likely...get the radiator cap from the dealership and your coolant check will be gone...

No, i do not mean that the radiator cap is missing, i mean that ther is not one present where they usually are. i need to know where it will be if any

I had the same issue"check coolant" with my 2003 CTS. I took it to the dealer. They told me that there was a hose leak and fixed it.

If the light is still on go to the dealer they will diagnose the issue and fix it plus you have to get the light reset. well advance auto can do thAT for you.

On a similar issue, I removed the radiator cap to check coolant level and the coolant sensor. The mechanic diagnosed a radiator hose (http://www.partstrain.com/ShopByDepartment/Engine/Radiator_Hose) leak and replaced it.