Is the 2003 GMC Sierra 2500 a bad year?
160 owner complaints to NHTSA. Engine and transmission complaints are in line with other Sierra 2500 years.
Keep it
Engine and transmission complaints for the 2003 GMC Sierra 2500 are in line with other Sierra 2500 years. Brakes stands out for this year: see below.
The verdict moves with mileage: the same car reads differently at 30,000 and at 150,000 miles.
What 2003 Sierra 2500 owners report, by mileage
Each system owners named in five or more complaints, with the mileage range where the middle half of those complaints were filed. Read at 76,000 miles.
| SYSTEM | COMPLAINTS | MIDDLE HALF FILED AT | TYPICAL US REPAIR BILLS |
|---|---|---|---|
| BrakesSTANDS OUT | 72 (45%) | 50k–111k miles · around this mileage | Brake pad replacement (one axle) $115–$390 · Brake pads and rotors replacement (one axle) $200–$1,084 |
| Electrical system | 36 (23%) | 50k–112k miles · around this mileage | 12-volt battery replacement $100–$400 · Starter motor replacement $350–$1,200 |
| Transmission and drivetrain | 13 (8%) | 42k–116k miles · around this mileage | CV axle / CV joint replacement (one side) $300–$1,500 · Automatic transmission replacement $2,500–$7,000 |
| Steering | 10 (6%) | 18k–95k miles · around this mileage | Steering rack and pinion replacement $700–$2,100 |
| Engine | 9 (6%) | 45k–109k miles · around this mileage | Valve cover gasket replacement $110–$500 · Timing chain replacement $1,000–$4,000 |
| Fuel system | 15 (9%) | 84k–139k miles · ahead | Fuel pump replacement $220–$1,500 · Fuel injector replacement (one injector) $300–$1,200 |
| Body structure | 5 (3%) | too few with a mileage | — |
| Suspension | 5 (3%) | too few with a mileage | — |
Bills are typical US ranges from the sources named in the tool (J.D. Power, Kelley Blue Book, CarParts.com and others), printed only for systems that stand out or sit at or ahead of 76,000 miles. Not a quote.
What owners reported alongside their complaints
Of 160 complaints: 7 mention a crash · 4 mention a fire · 4 report an injury.
No complaints in the last 12 months; the newest was filed in Feb 2020.
Counts of what owners wrote in their complaints, not verified by anyone.
Recalls for the 2003 GMC Sierra 2500: 3
Certain federal-mogul national and carquest aftermarket hub assemblies, p/n 515058, sold for use on 2001-2006 general motors 1500 and 2500 4WD trucks. On the subject hub assemblies, the ABS sensor cord departs from the hub assembly at a 90 degree angle. If stopping distance is limited, a vehicle crash could occur.
Certain replacement fuel filters, fram brand name p/n G3727, with date codes X52911 through X60801 sequentially or X600141 and a mexico country or origin marking on the fuel filter housing manufactured from october 18, 2005, through march 21, 2006, sold for use on the vehicles listed above and on certain school buses. This condition may cause an inadequate seal at the connection, potentially leading to a fuel leak. In the presence of an ignition source, a fire could occur.
Certain fabtech aftermarket replacement pitman arms, p/nos. FTS71000 and FTS71001, installed for use on certain 2001-2006 GM c/k 2500 pick up trucks and sport utility vehicles. The pin located inside the pitman arm can shear off due to a reverse bending fatigue condition, resulting in a total loss of steering control. Loss of steering control could lead to a vehicle crash with potential injury or death.
A recall may cover only some cars of a model year; the campaign size counts every model and year it lists. Enter your VIN at nhtsa.gov/recalls: dealers fix open recalls free.
Service bulletins from GMC: 114
Repair instructions GMC sent its dealers for symptoms seen in the shop on the 2003 GMC Sierra 2500. Ask a dealer or mechanic for a bulletin by its number.
Measure for oil consumption and possible reasons for loss of oil
Rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build-up
Possible location of an internal coolant leak from a specific cylinder head and location
Guidelines to replace Oil Cooler, Oil Cooler Lines and Oil Tank if the engine was replaced where large amounts of debris has flowed throughout the oiling system
Neighbouring years
2002 Sierra 2500: 134 complaints, keep it · 2004 Sierra 2500: 143 complaints, keep it.
Every GMC Sierra 2500 year
2000 · 2001 · 2002 · 2003 · 2004 · 2005 · 2006 · 2007 · 2008 · 2009 · 2010 · 2011 · 2012 · 2013 · 2014 · 2015 · 2016 · 2017 · 2018 · 2019 · 2020 · 2021 · 2022 · 2023 · 2024 · 2025 · 2026 · All Sierra 2500 years side by side
Other GMC models: GMC Acadia · GMC Canyon · GMC Denali · GMC Envoy · GMC Envoy XL · GMC Envoy Xuv · GMC Jimmy · GMC Safari · GMC Savana · GMC Sierra · GMC Sierra 1500 · GMC Sierra 3500 · GMC Sierra Denali · GMC Sonoma · GMC Terrain · GMC Yukon · GMC Yukon Denali · GMC Yukon Denali XL · GMC Yukon XL · GMC Yukon XL 1500. All makes and models.
Questions
Is the 2003 GMC Sierra 2500 a bad year?
160 owner complaints to NHTSA. Engine and transmission complaints are in line with other Sierra 2500 years. At 76,000 miles the tool says: Keep it.
What are the most common problems with the 2003 GMC Sierra 2500?
By owner complaints to NHTSA: brakes (72), electrical system (36), transmission and drivetrain (13), steering (10), engine (9).
How many recalls does the 2003 GMC Sierra 2500 have?
3 recall campaigns list this model year: Brakes (NHTSA 06E050000), Fuel system (NHTSA 06E043000), Steering (NHTSA 06E010000). A recall may cover only some cars; check by VIN at nhtsa.gov/recalls.
Method: counts of unverified owner complaints filed with NHTSA, compared only with other years of the same model (sales volumes are unknown, so no failure rate is computed). A system stands out at 40+ complaints and at least twice the model's quiet (lower-quartile) year, or twice the share across every vehicle of that model year. The mileage range is the 25th to 75th percentile of the mileages owners reported. Data received by NHTSA through November 5, 2026. Repair prices are typical US ranges from named sources, not quotes. Not a diagnosis and not financial advice. PulsCar is not affiliated with NHTSA. Check this car at your own mileage.