GMC Sierra 3500HD (2007–2026)

Pick a year for its recalls, owner complaints and safety ratings, or start with what each generation is known for.

Generations

2007–2010 common problems →6.6L Duramax LMM diesel and 6.0L V8 gasAirbag recalls top the complaints; cracked dashes are common and owners on a diesel forum report idler and pitman arm wear; Duramax LMM owners mostly report DPF, EGR and cooler line repairs.
2011–2014 common problems →6.6L Duramax LML diesel and 6.0L V8 gasThe Duramax LML's high-pressure fuel pump is the costliest risk; DEF and NOx sensor repairs and airbag recalls are common.
2015–2019 common problems →6.6L Duramax diesel (LML 2015–2016, L5P 2017–2019) and 6.0L V8 gas2015–2016 diesels carry the fuel pump risk; the 2017+ L5P has far fewer fuel pump complaints; trailer brake warnings are common.
2020–2026 common problems →6.6L Duramax L5P diesel and 6.6L V8 gasThe 10-speed transmission is the most reported problem, with a valve body recall on 2020–2022 diesels; trailer brake warnings are common.

Every year

Complaint counts compare each year with the typical heavy-duty truck from the same model year. They show what owners reported, not how reliable a truck is. ⚠ marks a well-known costly problem.

Best and worst years

Fewest complaints for their age:: 2017, 2009, 2014

See how every year compares, and what the numbers can't tell you →

Factory maintenance schedules

Going to look at a Sierra 3500HD?Bring our free used truck inspection checklist →