What you *can* do is:
* Check the tire pressure: Use a reliable gauge to verify the actual pressure in your tires. This is the most important step. Inflate tires to the recommended pressure listed on the sticker inside the driver's side doorjamb (or in your owner's manual).
* Reset the system (if necessary): After inflating your tires to the correct pressure, you might need to reset the Tire Pressure Monitoring System (TPMS). The method for doing this varies slightly depending on the specifics of your vehicle and if it has a dedicated reset button. Consult your owner's manual for the exact procedure. It often involves driving the car for a short distance after inflation.
* Address any issues: If the TPMS light stays on even after correct inflation and resetting, there could be a problem with a sensor, a faulty receiver, or a more significant mechanical issue. You should have your Cadillac inspected by a qualified mechanic.
In short, you don't adjust the *settings* of the TPMS, you maintain the correct tire pressure and reset the system if needed after doing so. If the problem persists, professional assistance is required.
