2011 GMC Savana 3500 Cargo Owner's Manual - Page 166

6-4 Lighting If the vehicle is started in a dark garage, the automatic headlamp system comes on immediately. Once the vehicle leaves the garage, it takes approximately 30 seconds for the automatic headlamp system to change to DRL if it is light outside. During that delay, the instrument panel cluster may not be as bright as usual. Make sure the instrument panel brightness control is in the full bright position. See Instrument Panel Illumination Control on page 6‑5. Turn and Lane-Change Signals The lever returns to its starting position when released. If after signaling a turn or lane change the arrow flashes rapidly or does not come on, a signal bulb may be burned out. Have the bulbs replaced. If the bulb is not burned out, check the fuse. See Fuses and Circuit Breakers on page 10‑45. G : An arrow on the instrument panel cluster flashes in the direction of the turn or lane change. To signal a turn, move the lever all the way up or down. To signal a lane change, raise or lower the lever until the arrow starts to flash. The turn signal automatically flashes three times and if the tow‐haul mode is active it flashes six times. Holding the turn signal lever for more than one second causes the turn signals to flash continually until the lever is released. Turn Signal On Chime If the turn signal is left on for more than 1.2 km (3/4 mi), a chime sounds at each flash of the turn signal and the message TURN SIGNAL ON also appears in the Driver Information Center (DIC). See Lamp Messages on page 5‑36. To turn off the chime and message, move the turn signal lever to the off position. Hazard Warning Flashers | (Hazard Warning Flashers): Press this button located on top of the steering column, to make the front and rear turn signal lamps flash on and off. This warns others that you are having trouble. Press again to turn the flashers off. When the hazard warning flashers are on, the vehicle's turn signals will not work.