2004 Cadillac SRX Owner's Manual - Page 206

Horn Sounds at Lock This feature sounds the horn once when the remote keyless entry transmitter is used to lock the vehicle. All doors must be closed for this feature to work. Programmable Modes Mode 1: ON Mode 2: OFF Before your vehicle was shipped from the factory, it was programmed to Mode 2. The mode to which the vehicle was programmed may have been changed since it left the factory. To program the vehicle to a different mode, use one of the following procedures: To change the mode using the Base audio system, do the following: 1. Enter the personalization portion of the SETUP menu following the instructions listed previously. 2. Scroll to HORN SOUNDS AT LOCK to highlight it. 3. Press the TUNE/SEL knob to switch back and forth between on and off. When the mode is turned on, a check mark will appear next to the feature name. To change the mode using the Navigation system, do the following: 1. Enter the Personalization menu by following the instructions listed previously. 2. Scroll to HORN SOUNDS AT LOCK and press the ON or OFF button next to it as desired. If the item is turned on the color of the ON button will be light blue. If the item is turned off the color of the OFF button will be light blue. If you select this feature to be on, Lights Flash At Lock will also be on. You can choose Lights Flash At Lock by itself, but Horn Sounds At Lock will always have Lights Flash At Lock enabled when it is selected. The mode you selected is now set. You can either exit the programming mode by following the instructions later in this section or program the next feature available on your vehicle. 3-84