2011 GMC Savana 3500 Passenger Owner's Manual - Page 328

10-62 Vehicle Care . The malfunction light and DIC warning message come on at each ignition cycle until the problem is corrected. Some of the conditions that can cause the malfunction light and DIC message to come on are: . One of the road tires has been replaced with the spare tire. The spare tire does not have a TPMS sensor. The malfunction light and the DIC message should go off once you re‐install the road tire containing the TPMS sensor and the sensor matching process is performed successfully. See "TPMS Sensor Matching Process" later in this section. The TPMS sensor matching process was not done or not completed successfully after rotating the vehicle's tires. The malfunction light and the DIC message should go off once the TPMS sensor matching process is performed successfully. See "TPMS Sensor Matching Process" later in this section. One or more TPMS sensors are missing or damaged. The malfunction light and the DIC message should go off when the TPMS sensors are installed and the sensor matching process is performed successfully. See your dealer for service. Replacement tires or wheels do not match the vehicle's original equipment tires or wheels. Tires and wheels other than those recommended for the vehicle could prevent the TPMS from functioning properly. See Buying New Tires on page 10‑67. Operating electronic devices or being near facilities using radio wave frequencies similar to the TPMS could cause the TPMS sensors to malfunction. TPMS Sensor Matching Process Each TPMS sensor has a unique identification code. Any time you rotate the vehicle's tires or replace one or more of the TPMS sensors, the identification codes will need to be matched to the new tire/wheel position. Also, the TPMS sensor matching process should be performed after replacing a spare tire with a road tire containing the TPMS sensor in order for the malfunction light and the DIC message to go off at the next ignition cycle. The sensors are matched to the tire/wheel positions in the following order: driver side front tire, passenger side front tire, passenger side rear tire, and driver side rear tire using a TPMS diagnostic tool. See your dealer for service. . . . If the TPMS is not functioning it cannot detect or signal a low tire condition. See your dealer for service if the TPMS malfunction light and DIC message come on and stay on.