2008 Chevrolet Silverado 1500 Pickup Owner's Manual - Page 252

TIGHTEN GAS CAP This message may display along with the check engine light on the instrument panel cluster if the vehicle's fuel cap is not tightened properly. See Malfunction Indicator Lamp on page 3-49. Reinstall the fuel cap fully. See Filling the Tank on page 5-10. The diagnostic system can determine if the fuel cap has been left off or improperly installed. A loose or missing fuel cap allows fuel to evaporate into the atmosphere. A few driving trips with the cap properly installed should turn this light and message off. TRACTION CONTROL OFF If your vehicle has StabiliTrak®, this message displays when the Traction Control System (TCS) is turned off. Adjust your driving accordingly. See StabiliTrak® System on page 4-6 for more information. TRAILER CONNECTED On vehicles with the Integrated Trailer Brake Control (ITBC) system, this message displays briefly when a trailer with electric brakes is first connected to the vehicle. This message clears itself after several seconds. This message also clears if you acknowledge it. After this message clears, the TRAILER GAIN/OUTPUT display appears in the DIC. See "TRAILER GAIN/OUTPUT" under DIC Operation and Displays (With DIC Buttons) on page 3-57 or DIC Operation and Displays (Without DIC Buttons) on page 3-63 and "Integrated Trailer Brake Control System" under Towing a Trailer on page 4-55 for more information. TIRE LEARNING ACTIVE If your vehicle has the Tire Pressure Monitor System (TPMS), this message displays when the system is re-learning the tire positions on your vehicle. See "DIC Operation and Displays (Without DIC Buttons)" earlier in this section for more information. The tire positions must be re-learned after rotating the tires or after replacing a tire or sensor. See Tire Inspection and Rotation on page 5-83, Tire Pressure Monitor System on page 5-78, and Inflation - Tire Pressure on page 5-76 for more information. 3-74