2000 GMC Yukon Owner's Manual - Page 82

If the rear lock switch is pressed with the rear doors open, all of the doors will lock five seconds after the cargo doors are closed. The power door locks will operate at any time without the ignition being on. Operating the power locks may interact with the theft-deterrent system (if equipped). See "Content Theft-Deterrent" in the Index. To enter the program mode you need to: 1. Beginning with the ignition in OFF, pull back on the turn signal/multifunction lever all the way toward you and hold it while you perform the next step. 2. Turn your key to ON and OFF twice. Then, with the key in OFF, release the turn signal/multifunction lever. Once you do this, you will hear the lock switch lock and unlock. 3. You are now ready to program the automatic door locks. Select one of the following four programming options and follow the instructions. You will have ten seconds to begin programming. If you exceed the ten second limit, the locks will automatically lock and unlock to indicate you have left the program mode. If this occurs, repeat the procedure beginning with step 1. You can exit the program mode any time by turning the ignition to ON (the locks will automatically lock and unlock to indicate you are leaving the program mode). If the lock/unlock switches are not pressed while in the programming mode, the auto lock/unlock setting will not be modified. Programmable Automatic Door Locks Your vehicle is equipped with an auto lock/unlock feature which enables you to program your power door locks. Your vehicle left the factory programmed to have the automatic lock feature lock all the doors when the vehicle speed is greater than 15 mph (24 km/h) for two seconds, and then unlock all the doors once the key is removed from the ignition. The following instructions detail how to program your door locks. 2-5