206 problems have been reported for the 2001 Cadillac Deville. The following chart shows the 19 most common problems for 2001 Cadillac Deville. The number one most common problem is related to the vehicle's engine and engine cooling with 48 problems. The second most common problem is related to the vehicle's electrical system (44 problems).
In our research we use the PPMY index to compare the reliability of vehicles. The PPMY index of a certain model is defined as the problems reported per thousand vehicles per Year. The total sales of the 2001 Cadillac Deville in the United States are 90,140 units [1]. If the total number of problems reported by Cadillac Deville owners in the last 24 years is 206, and the age of the vehicle is 24, the PPMY index can then be calculated as
PPMY Index = 206 / 90,140 / 24 * 1000 = 0.10.
For more information, refer to this page: A study of reliability comparison across Cadillac Deville model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2001 Cadillac Deville in 2001.
| Service Year | Number of Problems |
|---|---|
| 2025 | |
| 2024 | |
| 2023 | |
| 2022 | |
| 2021 | |
| 2020 | |
| 2019 | |
| 2018 | |
| 2017 | |
| 2016 | |
| 2015 | |
| 2014 | |
| 2013 | |
| 2012 | |
| 2011 | |
| 2010 | |
| 2009 | |
| 2008 | |
| 2007 | |
| 2006 | |
| 2005 | |
| 2004 | |
| 2003 | |
| 2002 | |
| 2001 |
When making the decision between buying a new or used Cadillac Deville, the following table can be used to compare the 2001 Cadillac Deville with the Cadillac Deville from other model years. Note that the number of problems reported for the 2001 Deville is 206 while the average number of problems reported for the 10 model years of the Cadillac Deville is 203.
| Model Year | Number of Problems |
|---|---|
| 2005 Deville | |
| 2004 Deville | |
| 2003 Deville | |
| 2002 Deville | |
| 2001 Deville | |
| 2000 Deville | |
| 1999 Deville | |
| 1998 Deville | |
| 1997 Deville | |
| 1996 Deville |