# 2003 GMC Yukon - Problems, Statistics, and Analysis

## Common problems of the 2003 GMC Yukon

607 problems have been reported for the 2003 GMC Yukon.
The following chart shows the 25 most common problems for 2003 GMC Yukon.
The number one most common problem is related to the vehicle's electrical system
with 153 problems.
The second most common problem is related to the vehicle's service brakes, hydraulic
(131 problems).

### Table 1. Common problems of the 2003 GMC Yukon

##
PPMY Index and Problem Occurrence Trend

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 2003 GMC Yukon in the United States are 89,360 units [1]. If the total number of problems reported by GMC Yukon owners in the last 14 years is 607, and the age of the vehicle is 14, the PPMY index can then be calculated as

PPMY Index = 607 / 89,360 / 14 * 1000 = 0.49.

For more information, refer to this page: A study of reliability comparison across GMC Yukon model year vehicles.

The following chart shows the number of problems reported during each of the service
years since the debut of the 2003 GMC Yukon in 2003.

#### Table 2. PPMY Index and Problem Occurrence Trend

Service Year | Number of Problems |

2003 |
2 |

2004 |
49 |

2005 |
39 |

2006 |
57 |

2007 |
54 |

2008 |
37 |

2009 |
24 |

2010 |
37 |

2011 |
33 |

2012 |
41 |

2013 |
55 |

2014 |
55 |

2015 |
44 |

2016 |
16 |

2017 |
9 |

##
Compare the 2003 GMC Yukon with Other Model Years

When making the decision between buying a new or used GMC Yukon,
the following table can be used to compare the 2003 GMC Yukon
with the GMC Yukon from other model years.
Note that the number of problems reported for the 2003 Yukon is 607
while the average number of problems reported for the 22 model years of the GMC Yukon is 240.

### Table 3. Compare the 2003 GMC Yukon with other model years