Cadillac 2007 XLR Owner's Manual page 114

Programming Universal Home
Remote — Fixed Code
Fixed Code garage door openers are used for
garage doors produced prior to 1996. Fixed code
uses the same coded signal every time, which
is manually programmed by setting DIP switches
for a unique personal code.
To program up to three channels,
1. Remove the battery cover of the hand-held
transmitter.
114
Example of Switch Settings
2. Write down the eight to 12 coding switch
settings from left to right. When the switch
is in the up position, write "on," and when a
switch is in the down position, write "off".
If a switch is set between the up and down
position, write "middle".
3. Enter these positions into the Universal Home
Remote System as follows.
Press and release all three buttons at the same
time to put the device into programming mode.