Buick Rainier - Problems, Statistics, and Analysis

Buick Rainier owners have reported a total of 449 problems for their cars built in the 5 model years listed in the chart below. The chart shows the number of problems reported across all service years for each given model year of the Buick Rainier. The 2004 Buick Rainier cars have the most problems reported (177 problems).

Table 1. Total number of problems by model year for Buick Rainier

Model Year Number of Problems
  2007 Rainier
42
  2006 Rainier
99
  2005 Rainier
130
  2004 Rainier
177
  2003 Rainier
1

  Common problems of Buick Rainier

The following chart shows the 21 most common problems for Buick Rainier cars. The number one most common problem is related to the vehicle's electrical system (134 problems). The second most common problem is related to the vehicle's fuel system, gasoline (56 problems).

Table 2. Common problems of Buick Rainier

Problem Category Number of Problems
  Electrical System
134
  Gasoline Fuel System
56
  Exterior Lighting
49
  Other Fuel System
30
  Power Train
24
  Engine And Engine Cooling
19
  Visibility
17
  Suspension
17
  Vehicle Speed Control
16
  Air Bag
16
   
  Equipment
16
  Electronic Stability Control
12
  Service Brakes
10
  Steering
7
  Structure
7
  Latches/locks/linkage
5
  Seat Belt
4
  Tire
3
  Seats
3
  Interior Lighting
3
  Unknown Or Other
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Buick Rainier of an older model year to newer model years since older vehicles have been in service longer and thus are expected to have more problems. In order to compare the reliability across Rainier model years, we use the PPMY index which is defined as the problems reported per thousand vehicles per Year. A smaller PPMY index indicates greater reliability of the given model year cars.

    PPMY = P / S / Y * 1000,

where P = total problems reported during the life of a Buick Rainier model year; S = total units sold of the model year; Y = years since the debut of the model year (the age of the vehicle).

The results are shown in Table 3.

Table 3. Use PPMY Index to Compare Reliability Across Rainier Model Years

Rainier
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2007 425,40912    
0.65
  2006 9913,77413    
0.55
  2005 13013,64814    
0.68
  2004 17728,97115    
0.41

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Buick Rainier is to use the total number of problems reported during the vehicle's first year in service, as shown in the Table 4.

Table 4. Number of problems in vehicle's; first service year

Model YearProblems Reported
  2006 Rainier
3
  2005 Rainier
6
  2004 Rainier
16


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