GMC Sierra 1500 - Problems, Statistics, and Analysis

GMC Sierra 1500 owners have reported a total of 3,904 problems for their cars built in the 24 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 GMC Sierra 1500. The 2014 GMC Sierra 1500 cars have the most problems reported (486 problems).

  Common problems of GMC Sierra 1500

The following chart shows the 26 most common problems for GMC Sierra 1500 cars. The number one most common problem is related to the vehicle's service brakes, hydraulic (951 problems). The second most common problem is related to the vehicle's air bags (589 problems).

Table 2. Common problems of GMC Sierra 1500

Problem Category Number of Problems
  Service Brakes
951
  Air Bag
589
  Electrical System
380
  Equipment
354
  Exterior Lighting
227
  Steering
208
  Engine And Engine Cooling
186
  Structure
173
  Power Train
168
  Suspension
97
   
  Visibility
86
  Other Fuel System
67
  Electronic Stability Control
57
  Vehicle Speed Control
55
  Gasoline Fuel System
51
  Seat Belt
48
  Wheel
47
  Tire
38
  Seats
37
  Parking Brake
34
  Latches/locks/linkage
21
  Unknown Or Other
19
  Air Brake
7
  Traction Control System
2
  Child Seat
1
  Back Over Prevention
1

  Compare Reliability Across Model Years Using PPMY Index

It would not be fair to compare the GMC Sierra 1500 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 Sierra 1500 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 GMC Sierra 1500 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 Sierra 1500 Model Years

Sierra 1500
Model Year
Problems Sales [1] Vehicle
Age
PPMY Index
  2018 2359,5951    
0.39
  2017 33158,5222    
0.10
  2016 92123,5133    
0.25
  2015 316187,1314    
0.42
  2014 486188,6595    
0.52
  2013 63105,1926    
0.10
  2012 78101,8037    
0.11
  2011 226129,5848    
0.22
  2010 16069,7579    
0.25
  2009 19592,57510    
0.21
  2008 316136,61111    
0.21
  2007 228155,17912    
0.12
  2006 165142,18013    
0.09
  2005 212147,95214    
0.10
  2004 243145,19315    
0.11
  2003 227128,44216    
0.11
  2002 190134,29317    
0.08
  2001 161126,33518    
0.07
  2000 188163,73519    
0.06

  Number of Problems Reported During the First Year

Another way to measure the reliability across the model years of the GMC Sierra 1500 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
  2018 Sierra 1500
14
  2017 Sierra 1500
20
  2016 Sierra 1500
25
  2015 Sierra 1500
60
  2014 Sierra 1500
98
  2013 Sierra 1500
1
  2012 Sierra 1500
1
  2011 Sierra 1500
14
  2010 Sierra 1500
9
  2009 Sierra 1500
9
  2008 Sierra 1500
18
  2007 Sierra 1500
26
  2006 Sierra 1500
20
  2005 Sierra 1500
1
  2004 Sierra 1500
9
  2003 Sierra 1500
6
  2002 Sierra 1500
8
  2001 Sierra 1500
2
  2000 Sierra 1500
4
  1999 Sierra 1500
2


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