Chevrolet HHR - Problems, Statistics, and Analysis

Chevrolet HHR owners have reported a total of 3,922 problems for their cars built in the 9 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 Chevrolet HHR. The 2006 Chevrolet HHR cars have the most problems reported (1,143 problems).

Table 1. Total number of problems by model year for Chevrolet HHR

Model Year Number of Problems
  2011 HHR
224
  2010 HHR
567
  2009 HHR
550
  2008 HHR
618
  2007 HHR
814
  2006 HHR
1,143
  2005 HHR
3
  2001 HHR
2
  1998 HHR
1

  Common problems of Chevrolet HHR

The following chart shows the 24 most common problems for Chevrolet HHR cars. The number one most common problem is related to the vehicle's steering (1,417 problems). The second most common problem is related to the vehicle's electrical system (641 problems).

Table 2. Common problems of Chevrolet HHR

Problem Category Number of Problems
  Steering
1,417
  Electrical System
641
  Air Bag
305
  Service Brakes
202
  Equipment
196
  Structure
180
  Engine And Engine Cooling
178
  Power Train
152
  Other Fuel System
110
  Latches/locks/linkage
105
   
  Electronic Stability Control
102
  Suspension
67
  Exterior Lighting
53
  Vehicle Speed Control
46
  Unknown Or Other
39
  Visibility
36
  Seat Belt
26
  Wheel
22
  Tire
22
  Gasoline Fuel System
8
  Seats
6
  Air Brake
4
  Traction Control System
4
  Interior Lighting
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the Chevrolet HHR 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 HHR 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 Chevrolet HHR 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 HHR Model Years

HHR
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2011 22468,4558    
0.41
  2010 56764,7359    
0.97
  2009 55080,78110    
0.68
  2008 61899,16211    
0.57
  2007 814100,24712    
0.68
  2006 1,143113,91113    
0.77

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the Chevrolet HHR 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
  2011 HHR
15
  2010 HHR
12
  2009 HHR
29
  2008 HHR
45
  2007 HHR
35
  2006 HHR
34
  2001 HHR
1


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