Vehicle Data Hub

Hummer electrical system problems

Across all Hummer models in NHTSA's complaint database, 332 complaints involve electrical system. The H3 accounts for the largest share (74%). The single worst model year is the 2006 H3 with 97 electrical system complaints.

At a glance

Complaints
332 about electrical system, all Hummer models
Most affected
H3 74% of these complaints
Typical mileage
80,000 miles 282 complaints with mileage
Crashes and fires
2 and 46

Source: NHTSA owner complaints

Which Hummer models

ModelComplaintsShare
H324774%
H27422%
H2 Sut62%
H3 Sut41%
H110%

Worst model years for electrical system

  1. 2006 Hummer H397 complaints
  2. 2007 Hummer H376 complaints
  3. 2008 Hummer H334 complaints
  4. 2009 Hummer H334 complaints
  5. 2005 Hummer H227 complaints

Electrical system complaints by model year

Hummer electrical system complaints by model year 0 75 150 2003: 27 '03 2004: 14 '04 2005: 32 '05 2006: 102 '06 2007: 79 '07 2008: 36 '08 2009: 38 '09 2010: 4 '10
Totals across all models of the brand. Older model years have had longer to collect complaints.
View the numbers
Model yearComplaints
200327
200414
200532
2006102
200779
200836
200938
20104

Among the 282 of these complaints that report mileage, the median is about 80,000 miles.

Complaint counts are not adjusted for how many vehicles each brand sells, so large brands naturally have more complaints.