Cadillac 2005 CTS Owner's Manual page 205

Before your vehicle was shipped from the factory,
it was programmed to Mode 1. The mode to which the
vehicle was programmed may have been changed
since the vehicle left the factory.
To determine the mode to which the vehicle is
programmed or to program the vehicle to a different
mode, use the following procedure:
1. Enter the personalization portion of the SETUP
menu following the instructions listed previously.
2. Scroll to TWILIGHT DELAY using the TUNE/SEL
knob to highlight it.
3. Press the TUNE/SEL knob to scroll through the
available delay settings. When the delay time
you want is highlighted, press the TUNE/SEL knob
once to select it.
When the mode is turned on, an X will appear in
the box to the left.
If you choose Mode 1, the exterior lamps will not
illuminate when you exit the vehicle. Only one mode
can be selected at a time.
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.
Lights Flash at Unlock
This feature flashes the exterior lamps when the remote
keyless entry transmitter is used to unlock the vehicle.
The lamps will flash for approximately 20 seconds
unless a door is opened, the ignition is turned to
ACCESSORY, ON or START or the remote keyless
entry transmitter is used to lock the vehicle.
Programmable Modes
Mode 1: ON
Mode 2: OFF
Before your vehicle was shipped from the factory,
it was programmed to Mode 1. 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 the
following procedure:
1. Enter the personalization portion of the SETUP
menu following the instructions listed previously.
2. Scroll to LIGHTS FLASH AT UNLOCK 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.
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