Gmc Sierra 3500 Reliability by Year

731 NHTSA complaints (1996–2025). Complaint rate: 1791.7 per 1,000 vehicles.

Gmc Sierra 3500 reliability varies significantly by model year. Based on 731 NHTSA complaints (1996–2025), the most problematic years are 2020, 2024, with high complaint volumes linked to brake failures. Better choices include 2010, 2014, 2012, which show significantly fewer reported problems.

Why these years are worse

The most common issues driving the complaint spikes:

  • brake failures80 complaints (7.5% involved a crash)
  • transmission issues74 complaints (4.1% involved a crash)
  • electrical faults65 complaints (0.0% involved a crash)
  • airbag malfunctions51 complaints (13.7% involved a crash)
  • engine problems49 complaints (0.0% involved a crash)
Severity Score
3468.1
Complaints
731
Crash Rate
5.2%
Fire Rate
3.6%
Injuries
39
Fatalities
1

Which Years to Buy & Avoid

Years auto-clustered by complaint volume relative to this model's median.

Bottom line: Avoid the 2020 Gmc Sierra 3500. The 2014 models had significantly fewer reported issues. Most common issue across all years: SERVICE BRAKES.

Avoid These Years

2020
~72/yr complaints · 6 crashes
2001
~44/yr complaints · 3 crashes
2015
~40/yr complaints · 1 crashes
2022
~37/yr complaints · 6 crashes

Average

1997
~15/yr complaints
1999–2000
~28/yr complaints
2002
~29/yr complaints
2004–2005
~29/yr complaints

Better Years

2014
~10/yr complaints
2009–2010
~5/yr complaints
2006
~14/yr complaints
2003
~9/yr complaints

Too New

2024–2025
81 complaints so far

Need 3+ years on the road for reliable complaint data.

Looking at a specific Gmc Sierra 3500?

A model's reputation is just the start.

Even within the “good” years, individual cars can have hidden accidents, title issues, or odometer rollbacks. Check the actual VIN before you buy — full history report for $4.99 (vs. Carfax $44.99).

Complaints by Model Year

NHTSA complaint count per model year

Gmc Sierra 3500 — Complaints by Model YearPeak: 2020 (72)
021416283199619982000200220042006200820102012201420162018202020222024

Common Gmc Sierra 3500 Problems

Most reported component complaints to NHTSA

ComponentComplaintsCrash %
SERVICE BRAKES807.5%
POWER TRAIN744.1%
ELECTRICAL SYSTEM650.0%
AIR BAGS5113.7%
ENGINE490.0%
UNKNOWN OR OTHER405.0%
SERVICE BRAKES, HYDRAULIC336.1%
STEERING320.0%
FUEL/PROPULSION SYSTEM300.0%
EXTERIOR LIGHTING150.0%

See also: Gmc Sierra 3500accident & safety statistics from our vehicle history database.

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