Cadillac ATS's built in 2015 with the following tire sizes are recommended to be kept at the following pressures.
|F: 225/40R18 88V
R: 255/35R18 90V
|32 PSI||35 PSI|
|225/40R18 92V||32 - 35 PSI||32 - 40 PSI|
|P225/45R17 90H||32 PSI||35 PSI|
What Do These Numbers Mean?
When comparing tires you will find that they display various numbers and codes along the edges.
These numbers help you choose the right tire (size and speed rating) for your car and the following image shows you what each of them mean: