2005 GMC Envoy Owner's Manual - Page 192

SERVICE BRAKE SYSTEM If a problem occurs with the brake system this message will appear on the DIC. If this message appears, stop as soon as possible and turn off the vehicle. Restart the vehicle and check for the message on the DIC display. If the message is still displayed, or appears again when you begin driving, the brake system needs service. See your GM dealer. TURN SIGNAL ON If a turn signal is left on for 3/4 of a mile (1.2 km), this message will appear on the display and you will hear a chime. Move the turn signal/multifunction lever to the off position. Press the select button to acknowledge this message and clear it from the DIC display. DIC Vehicle Customization Your vehicle may have customization capabilities that allow you to program some features to one setting based on your preference. All of the customizable options listed may not be available on your vehicle. Only the options available will be displayed on your Driver Information Center (DIC). The default settings for the customization features were set when your vehicle left the factory, but may have been changed from their default state since then. To change feature preferences, make sure the ignition is on and the vehicle is in PARK (P). Press the customization button to scroll through the available customizable options. After pressing the customization button, VEHICLE SETTINGS will momentarily display before going to a customization option. TIGHTEN FUEL CAP If the vehicle's fuel cap is not tightened properly, this message may appear on the DIC and a chime will sound. Fully reinstall the fuel cap. See Filling the Tank on page 5-8. The diagnostic system can determine if the fuel cap has been left off or improperly installed. A loose or missing fuel cap will allow fuel to evaporate into the atmosphere. The DIC message will remain on until the message is cancelled with the return button on the steering wheel. The DIC message will also be cancelled if the ignition is turned off. The DIC message and the Service Engine Soon light may come on again during a second trip if the fuel cap is still not tightened properly. See Malfunction Indicator Lamp on page 3-41 for more information. 3-56