2007 Cadillac STS Owner's Manual - Page 437

6. Remove the valve cap from the valve stem. Activate the TPMS sensor by increasing or decreasing the tire's air pressure for five seconds, or until a horn chirp sounds. The horn chirp, which may take up to 30 seconds to sound, confirms that the sensor identification code has been matched to this tire position. To decrease the tire's air-pressure use the pointed end of the valve cap, a pencil-style air pressure gauge, or a key. 7. Proceed to the passenger's side front tire, and repeat the procedure in Step 6. 8. Proceed to the passenger's side rear tire, and repeat the procedure in Step 6. 9. Proceed to the driver's side rear tire, and repeat the procedure in Step 6. 10. After hearing the confirming single horn chirp for the driver's side rear tire, a double horn chirp will sound to signal the tire matching mode is no longer active. Press the push-button ignition switch to Acc. 11. Set all four tires to the recommended air pressure level as indicated on the tire and loading information label. 12. Put the valve caps back on the valve stems. The spare tire does not have a TPMS sensor. If you replace one of the road tires with the spare, the SERVICE TIRE MONITOR message will be displayed on the DIC screen. This message should go off once you re-install the road tire containing the TPM sensor. Federal Communications Commission (FCC) and Industry and Science Canada This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation. 437