2003 GMC Envoy Owner's Manual - Page 132

Turn SignaVMultifunction Lever Turn and Lane Change Signals The lever on the left side of the steering column includes the following: 0 0 : Turn and Lane Change Signals 0 go : Headlamp High/Low-Beam Changer Flash-to-Pass Feature 9s : Windshield Wipers 0 To signal a lane change, just raise or lower the lever until the arrow starts to flash. Hold it there until you complete your lane change. The lever will return by itself when you release it. The bottom of the outside rearview mirrors may also be equipped with lane change indicators. As you signal a turn or a lane change, if the arrows flash more quickly than normal, a signal bulb may be burned out and other drivers won't see your turn signal. 6: Windshield Washer : Cruise Control (If Equipped) 3-7