2000-2001 Model Years (USA Only)

Beginning with the 2000 MY, the Cadillac DeVille and Seville models sold in the USA were offered with an optional On-Board Navigation System (RPO UY4). The same system (with updated map coverage) was also available for the 2001 MY. The main components of this system are as follows:

^ Global Positioning System (GPS) antenna - under rear package shelf

^ Navigation Electronic Control Unit (ECU) - mounted in trunk

^ Navigation Radio Controller (NRC) - mounted in trunk

^ Navigation Display - center console

This system requires the usage of nine compact discs (CDs). These CDs are labeled for specific regions of the contiguous 48 states of the domestic North American market. Please note that for 2000-2001 model year vehicles, all nine CDs were shipped in a leather binder to the ordering dealership when the vehicle's invoice was generated. As such, the leather packet would arrive at the dealership prior to the actual vehicle (usually, within a 10 day to two week time frame). As part of this shipping process, dealerships were required to place the leather binder in a safe environment until the vehicle was prepped and delivered to the customer.

Customers who wish to obtain replacement CDs, in the event any of the original items become lost or damaged, may do so through your parts department. Below is the list of part numbers you may use to place an order through GMSPO.





Each disc covers the following geographical areas:

^ Disc 1/Region 1 = California, Nevada

^ Disc 2/Region 2 = Washington, Oregon, Idaho, Montana, Wyoming, Utah, Colorado, Arizona, New Mexico, TEXAS

^ Disc 3/Region 3 = North Dakota, South Dakota, Nebraska, Kansas, Minnesota, Wisconsin, MICHIGAN, Iowa, Missouri, ILLINOIS

^ Disc 4/Region 4 TEXAS, Oklahoma, Arkansas, Louisiana, TENNESSEE, Mississippi

^ Disc 5/Region 5 = WISCONSIN, ILLINOIS, INDIANA, MICHIGAN, OHIO

^ Disc 6/Region 6 = INDIANA, OHIO, Kentucky, TENNESSEE, West Virginia, MARYLAND, PENNSYLVANIA, NEW YORK

^ Disc 7/Region 7 = NEW YORK, NEW JERSEY, Connecticut, Massachusetts, Rhode Island, Vermont, New Hampshire, Maine

^ Disc 8/Region 8 = Virginia, NORTH CAROLINA, MARYLAND, Delaware, PENNSYLVANIA, NEW JERSEY

^ Disc 9/Region 9 = Alabama, Georgia, Florida, South Carolina, NORTH CAROLINA

Additional Information

^ States in UPPERCASE LETTERS indicate "split state" coverage. Please consult the "Navigation System Map Disc Coverage" booklet contained in the leather case in order to determine the applicable disc to install in the ECU (located in the trunk).

^ For the 2001 model year, a geographical map of the coverage area is also stamped on each respective disc.