2009 Cadillac XLR-V Owner's Manual - Page 250

Route Preference To change the planning options: The following options are available from the ROUTE PREFERENCE menu: Detour This feature allows you to choose a distance in miles/kilometers to detour. Select the detour distance desired for residential roads and freeways. 1. Press the ROUTE key. 2. Touch Route Preference. These settings are retained the next time Detour is used until the settings are changed. Alternate can also be touched to provide a new route that does not use previously stored detour settings. Touch Return to go back to the previous screen. 4-36