Is the 2018 GMC Sierra 2500 reliable?

Based on NHTSA complaint volume compared to this model's typical year, the 2018 GMC Sierra 2500 is rated "better than typical".

What are the most common problems with the 2018 GMC Sierra 2500?

The most-reported component is engine, accounting for 23% of complaints on file.

How many recalls does the 2018 GMC Sierra 2500 have?

5 recalls on file for this model year.

2018 GMC Sierra 2500

▲ Better than typical

2018 GMC Sierra 2500
RENDERED 2026-11-01T17:09:52.364Z

This year had at least 30% fewer complaints than this model's typical year.

This verdict reflects complaint volume compared to this model's typical year. Recalls and safety issues below apply regardless of the verdict — always check them.

How is this computed?

Complaints: 35
Recalls: 5
Investigations: 0
Top problem: Engine

Complaints per year

2018: 35 complaints

View as data table

Year	Complaints
1994	1
1997	14
1998	15
1999	36
2000	48
2001	134
2002	134
2003	160
2004	143
2005	115
2006	66
2007	83
2008	63
2009	31
2010	10
2011	63
2012	30
2013	46
2014	30
2015	89
2016	59
2017	37
2018	35
2019	32
2020	79
2021	51
2022	45
2023	32
2024	104
2025	28
2026	14

Known problem areas

Percentages can add to more than 100% — a complaint can name more than one system.

Engine

23% · 8 reports

Electrical system

20% · 7 reports

FIRE

Show complaint excerpts

My 2018 GMC sierra hd experienced an electrical short or overload, causing a thermal event that melted areas around the rear defrost circuit. Lots of smoke and burning smell, but luckily, I did not see flames.

NHTSA ODI report, 2020-03-20

While the truck was unattended, smoke was observed by a passer-by who called the local fire department. Fire dept broke a window for access, extinguished fire. Hauled vehicle away for safekeeping.

NHTSA ODI report, 2018-08-13

Fuel/propulsion system

14% · 5 reports

Show complaint excerpts

Constant issues with glow plug failures, fuel rail failure, fuel pressure failure.

NHTSA ODI report, 2023-11-02

My husband was driving our brand new denali which has only 3500 miles on it. The engine completely shut down crossing a highway with 55 miles per hour posting and my daugther of 8 years old was in the back seat.

NHTSA ODI report, 2018-07-17

Exterior lighting

11% · 4 reports

Equipment

11% · 4 reports

Safety timeline

5 recalls · 0 investigations · oldest first

To check one car, enter its VIN on the NHTSA recall page. Check a VIN →

R

2019-12-11Engine19V328000 General Motors LLC (GM) is recalling certain 2019 Chevrolet Silverado 4500, 5500 and 6500 vehicles and 2017-2019 Chevrolet Silverado 2500 and 3500 vehicles and GMC Sierra 2500 and 3500 vehicles equipped with Duramax 6.6 liter diesel engines and an...

Remedy: GM will contact owners, dealers will replace the engine block heater, free of charge. Additionally, in Chevrolet Silverado 2500 and 3500 vehicles, dealers will install a new rerouted heater cord. The recall began December 11, 2019.

Check if this car was fixed →
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2021-03-24Seat belts17V567000 General Motors (GM) is recalling certain 2017-2018 Chevrolet Silverado 2500 and 3500 and GMC Sierra 2500 and 3500 trucks. The front seat belt retractor assemblies were built with the incorrect torsion bar.

Remedy: GM will notify owners, and dealers will replace both front seat belt retractor assemblies, free of charge. The recall began March 24, 2021. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020.

Check if this car was fixed →
R

2022-04-04Equipment21V496000 General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500 and 2017-2019 GMC Sierra 2500 and 3500 vehicles equipped with a Duramax diesel 6.6 liter engine and an optional engine-block heater cord.

Remedy: Dealers will replace engine block heaters and heater cords.

Check if this car was fixed →
R

2023-06-21Fuel system, diesel23V047000 General Motors, LLC (GM) is recalling certain 2017-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 vehicles equipped with a dual fuel tank option.

Remedy: Dealers will inspect the fuel tank and fuel pump module, replacing them as necessary. Dealers will also add a vent hose to the rear tank assembly. Repairs will be performed free of charge.

Check if this car was fixed →
R

2024-11-08Air bags24V756000 General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2018-2019 Chevrolet Silverado 2500, 3500, and GMC Sierra 2500, 3500 Crew Cab trucks.

Remedy: Dealers will replace the left and right side RRAB modules, free of charge. Owner notification letters were mailed November 8, 2024. Owners may contact Chevrolet customer service at 1-800-222-1020, and GMC Customer Service at 888-988-7267.

Check if this car was fixed →

Buy-smart checklist

2018 GMC Sierra 2500 — pre-purchase inspection

Inspect

Engine: 8 reports on file for this year.
Electrical system: 7 reports on file for this year.
Fuel/propulsion system: 5 reports on file for this year.

Verify these recalls were completed

Recall 19V328000 · Engine
Recall 17V567000 · Seat belts
Recall 21V496000 · Equipment
Recall 23V047000 · Fuel system, diesel
Recall 24V756000 · Air bags

Other years of this model

See all years ranked →

Best years3 years

Worst years3 years

FAQ

Is the 2018 GMC Sierra 2500 reliable?: Based on NHTSA complaint volume compared to this model's typical year, the 2018 GMC Sierra 2500 is rated "better than typical".
What are the most common problems with the 2018 GMC Sierra 2500?: The most-reported component is engine, accounting for 23% of complaints on file.
How many recalls does the 2018 GMC Sierra 2500 have?: 5 recalls on file for this model year.

Data updated 2026-11-01 · Complaints are unverified owner reports filed with NHTSA, not independently verified defects. Methodology.