22 problems have been reported for the 2005 Buick Century. The following chart shows the 9 most common problems for 2005 Buick Century. The number one most common problem is related to the vehicle's exterior lighting with 8 problems. The second most common problem is related to the vehicle's electrical system (5 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 2005 Buick Century in the United States are 40,051 units . If the total number of problems reported by Buick Century owners in the last 14 years is 22, and the age of the vehicle is 14, the PPMY index can then be calculated as
PPMY Index = 22 / 40,051 / 14 * 1000 = 0.04.
For more information, refer to this page: A study of reliability comparison across Buick Century model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2005 Buick Century in 2005.
|Service Year||Number of Problems|
When making the decision between buying a new or used Buick Century, the following table can be used to compare the 2005 Buick Century with the Buick Century from other model years. Note that the number of problems reported for the 2005 Century is 22 while the average number of problems reported for the 10 model years of the Buick Century is 137.