2003 Buick Century - Problems, Statistics, and Analysis

Common problems of the 2003 Buick Century

139 problems have been reported for the 2003 Buick Century.
The following chart shows the 20 most common problems for 2003 Buick Century.
The number one most common problem is related to the vehicle's exterior lighting
with 41 problems.
The second most common problem is related to the vehicle's electrical system
(21 problems).

Table 1. Common problems of the 2003 Buick Century

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 2003 Buick Century in the United States are 148,270 units [1]. If the total number of problems reported by Buick Century owners in the last 15 years is 139, and the age of the vehicle is 15, the PPMY index can then be calculated as

The following chart shows the number of problems reported during each of the service
years since the debut of the 2003 Buick Century in 2003.

Table 2. PPMY Index and Problem Occurrence Trend

Service Year

Number of Problems

2018

1

2017

2

2016

8

2015

1

2014

9

2013

7

2012

6

2011

11

2010

11

2009

13

2008

9

2007

12

2006

6

2005

8

2004

20

2003

1

Compare the 2003 Buick Century with Other Model Years

When making the decision between buying a new or used Buick Century,
the following table can be used to compare the 2003 Buick Century
with the Buick Century from other model years.
Note that the number of problems reported for the 2003 Century is 139
while the average number of problems reported for the 10 model years of the Buick Century is 137.

Table 3. Compare the 2003 Buick Century with other model years