2005 Pontiac Grand Prix Owner's Manual - Page 198

Any of the following conditions may cause the traction control system to turn off: Audio System(s) Notice: Before adding any sound equipment to your vehicle, like a tape player, CB radio, mobile telephone, or two-way radio, make sure that it can be added by checking with your dealer. Also, check federal rules covering mobile radio and telephone units. If sound equipment can be added, it is very important to do it properly. Added sound equipment may interfere with the operation of your vehicle's engine, radio, or other systems, and even damage them. Your vehicle's systems may interfere with the operation of sound equipment that has been added improperly. Figure out which audio system is in your vehicle, find out what your audio system can do, and how to operate all of its controls. Your vehicle has a feature called Retained Accessory Power (RAP). With RAP, the audio system can be played even after the ignition is turned off. See Retained Accessory Power (RAP) on page 2-22 for more information. • The traction control system is turned off by pressing the TC (traction control) button located on the center console. See Traction Control System (TCS) on page 4-9 or Enhanced Traction System (ETS) on page 4-10 for more information. • The battery is low. • There is a traction control system failure. See your GM dealer for service. TURN SIGNAL ON This message will comes on if the vehicle is driven for more than 0.75 mile (1.21 km) with one of the turn signals on. It appears as a reminder to turn off the turn signal. This message only displays when the ignition is in RUN. A chime will sound for two seconds and the message will not disappear until the turn signal is manually turned off, or a turn is completed. 3-92