Oldsmobile Alero - Problems, Statistics, and Analysis

Oldsmobile Alero owners have reported a total of 2,859 problems for their cars built in the 8 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 Oldsmobile Alero. The 2000 Oldsmobile Alero cars have the most problems reported (800 problems).

Table 1. Total number of problems by model year for Oldsmobile Alero

Model Year Number of Problems
  2011 Alero
3
  2004 Alero
157
  2003 Alero
281
  2002 Alero
389
  2001 Alero
529
  2000 Alero
800
  1999 Alero
698
  1998 Alero
2

  Common problems of Oldsmobile Alero

The following chart shows the 25 most common problems for Oldsmobile Alero cars. The number one most common problem is related to the vehicle's electrical system (603 problems). The second most common problem is related to the vehicle's exterior lighting (409 problems).

Table 2. Common problems of Oldsmobile Alero

Problem Category Number of Problems
  Electrical System
603
  Exterior Lighting
409
  Service Brakes
383
  Engine And Engine Cooling
327
  Visibility
180
  Suspension
108
  Steering
100
  Gasoline Fuel System
98
  Air Bag
95
  Structure
92
   
  Power Train
88
  Vehicle Speed Control
69
  Equipment
55
  Other Fuel System
44
  Unknown Or Other
39
  Tire
34
  Wheel
28
  Seat Belt
26
  Seats
24
  Air Brake
20
  Electronic Stability Control
15
  Parking Brake
8
  Interior Lighting
7
  Latches/locks/linkage
4
  Traction Control System
3

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Oldsmobile Alero 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 Alero 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 Oldsmobile Alero 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 Alero Model Years

Alero
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2004 15769,51615    
0.15
  2003 28192,87216    
0.19
  2002 38979,37317    
0.29
  2001 529112,45818    
0.26
  2000 800118,42119    
0.36

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Oldsmobile Alero 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
  2004 Alero
15
  2003 Alero
13
  2002 Alero
12
  2001 Alero
34
  2000 Alero
86
  1999 Alero
57


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