739 problems have been reported for the 2006 Chevrolet Impala. The following chart shows the 23 most common problems for 2006 Chevrolet Impala. The number one most common problem is related to the vehicle's electrical system with 130 problems. The second most common problem is related to the vehicle's steering (124 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 2006 Chevrolet Impala in the United States are 274,525 units [1]. If the total number of problems reported by Chevrolet Impala owners in the last 20 years is 739, and the age of the vehicle is 20, the PPMY index can then be calculated as
PPMY Index = 739 / 274,525 / 20 * 1000 = 0.13.
For more information, refer to this page: A study of reliability comparison across Chevrolet Impala model year vehicles.
The following chart shows the number of problems reported during each of the service years since the debut of the 2006 Chevrolet Impala in 2006.
| Service Year | Number of Problems |
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| 2025 | |
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| 2006 |
When making the decision between buying a new or used Chevrolet Impala, the following table can be used to compare the 2006 Chevrolet Impala with the Chevrolet Impala from other model years. Note that the number of problems reported for the 2006 Impala is 739 while the average number of problems reported for the 25 model years of the Chevrolet Impala is 552.