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2018 GMC Sierra 3500HD

Heavy-duty pickup
0 EPA-rated configurations
Data refreshed 2026-09-11
F
Safety Signal
35 / 100 from the NHTSA recall record
Recalls3 critical6
Complaintsowner reports to NHTSA14
Crash ratingNHTSA overall—
20262025202420232022202120202019201820172016

The 2018 GMC Sierra 3500HD is a heavy-duty pickup; vehicles over 8,500 lb GVWR are not certified for fuel economy by the EPA, so this page is built from NHTSA's recall, complaint and investigation records. NHTSA lists 6 recall campaigns for this model year, 3 rated critical, which gives it a Safety Signal grade of F. Owners have filed 14 complaints, most often about the service brakes.

Specs & fuel economy

Source: EPA fueleconomy.gov

No EPA fuel-economy record: the EPA does not certify vehicles over 8,500 lb GVWR. Recall, complaint and investigation data below come from NHTSA.

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The 2018 GMC Sierra 3500HD is in the years where transmission, electronics and drivetrain repairs land on the owner. Compare extended-coverage quotes in about two minutes.

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Recalls (6)

Source: NHTSA recall database
▲high

Air Bags

N242474500
2,061 vehicles
ProblemGeneral 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. The left or right-side roof-rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.RiskA separated inflator end cap or inflator rupture can allow compressed gas to escape, resulting in the end cap or other components being propelled into the vehicle, increasing the risk of injury or crash.FixDealers 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. GM's number for this recall is N242474500.
NHTSA campaign 24V756000reported Oct 10, 2024General Motors, LLC
▲high

Fuel System, Diesel

N222368030
22,132 vehicles
ProblemGeneral 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. The rear fuel tank may collapse and prevent the fuel pump from transferring fuel to the front tank, resulting in an engine stall.RiskAn engine stall increases the risk of a crash.FixDealers 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. An interim owner notification letter informing owners of the safety risk was mailed on March 15, 2023. Owner notification letters were mailed June 21, 2023. Owners may contact Chevrolet customer service at 1-800-222-1020 or GMC customer service at 1-800-462-8782. GM's number for this recall is N222368030
NHTSA campaign 23V047000reported Feb 2, 2023General Motors, LLC
!critical

Equipment

N212329840
338,020 vehicles
ProblemGeneral 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. An electrical short-circuit may occur in the engine-block heater cable or in the terminals that connect the heater cable to the block heater.RiskAn electrical short-circuit can increase the risk of a fire.FixDealers will replace engine block heaters and heater cords. Vehicles that have this feature disabled as a remedy to the safety condition will be contacted and offered replacement block heaters and heater cords under a separate customer satisfaction program, free of charge. GM will provide free replacement block heaters and cords under a separate customer satisfaction campaign. For vehicles previously included in recall 19V-328, the heater cord will be replaced and rerouted, free of charge. In
NHTSA campaign 21V496000reported Jul 1, 2021General Motors, LLC
!critical

Engine

N182206310, -11, -12
318,374 vehicles
ProblemGeneral 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 optional engine-block heater. The engine block heater cord or the terminals that connect the heater cord to the block heater may short circuit and fail.RiskA short-circuit may damage the engine components and increase the risk of fire.FixGM 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. Owners may contact GM customer service at 1-586-596-1733. GM's number for this recall is N182206310.
NHTSA campaign 19V328000reported Apr 25, 2019General Motors LLC
!critical

Fuel System, Gasoline

N182204190
18,574 vehicles
ProblemGeneral Motors, LLC (GM) is recalling certain 2016-2018 GMC Sierra 3500 and Chevrolet Silverado 3500 trucks equipped with gasoline engines and dual fuel tanks. The fuel-level sensor in the front tank may stick in a low-level position, allowing the rear tank to overfill the front tank.RiskIf the front tank overfills, the excess pressure may cause the front tank to expand and contact the driveshaft, possibly resulting in a hole in the tank. The hole will leak fuel, which in the presence of an ignition source, can increase the risk of a fire.FixGM has notified owners, and dealers will replace the rear-tank fuel-pump module, inspect the front tank and, if necessary, replace the front tank, free of charge. The recall began July 30, 2019. GM's number for this recall is N182204190.
NHTSA campaign 19V088000reported Feb 7, 2019General Motors LLC
▲high

Seat Belts

17368, 17375, 17376
38,048 vehicles
ProblemGeneral 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. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 209, "Seat Belt Assemblies."RiskThe seat belt retractors may not perform as intended during a crash, increasing the risk of injury.FixGM 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. GM's numbers for this recall are 17368, 17375, and 17376.
NHTSA campaign 17V567000reported Sep 14, 2017General Motors LLC

Owner complaints

Source: NHTSA complaint database
14complaints filed

0 involved a crash · 0 a fire · 0 injuries · 0 deaths reported

Filed per year: 2018: 2 · 2019: 4 · 2020: 1 · 2022: 2 · 2023: 1 · 2024: 2 · 2025: 1 · 2026: 1

Most-cited components

Service Brakes6
Steering3
Exterior Lighting2
Electrical System2
Engine1
Electronic Stability Control (Esc)1

What owners describe

“The contact owns a 2018 Gmc Sierra 3500. The contact stated while operating the vehicle at an undisclosed speed the vehicle suddenly shutoff, the vehicle was coasted to side of the road. The contact referenced NHTSA Campaign Number: 21V739000 (FUEL SYSTEM, GASOLINE) however, the VIN was not included in the recall repai…”Apr 30, 2026 · Fuel System, Gasoline · NHTSA owner report
“Driving on the freeway going approx 70 MPH and the ABS warning light, and Stabilitrak warning light suddenly turned on. I’m sure you can imagine how panicked I was going that fast on the freeway and having my brake warnings suddenly turn on. Especially with my entire family in the vehicle with me at the time. Could f…”Dec 16, 2025 · Service Brakes · NHTSA owner report
“The contact owns a 2018 GMC Sierra 3500. The contact stated while driving at various speeds, several unknown warning lights illuminated on the instrument panel. The contact pulled over to the shoulder of the roadway to restart the vehicle. After the vehicle was restarted, the vehicle hesitated to stop while depressing …”Jul 29, 2024 · Electrical System · NHTSA owner report

Complaint counts are raw owner reports to NHTSA, not verified defects, and scale with how many were sold. Use them to spot patterns, not to rank.

Crash ratings

Source: NHTSA NCAP

NHTSA has not published 5-Star crash ratings for this model year.

Compare the 2018 Sierra 3500HD with

2018 Chevrolet Silverado 2500HD →2018 Chevrolet Silverado 3500HD →

Other Sierra 3500HD model years

B

2026 GMC Sierra 3500HD

2 recalls · 4 complaints

A

2025 GMC Sierra 3500HD

1 recalls · 16 complaints

C

2024 GMC Sierra 3500HD

3 recalls · 44 complaints

A

2023 GMC Sierra 3500HD

1 recalls · 28 complaints

C

2022 GMC Sierra 3500HD

3 recalls · 31 complaints

F

2021 GMC Sierra 3500HD

5 recalls · 20 complaints

F

2020 GMC Sierra 3500HD

8 recalls · 51 complaints

F

2019 GMC Sierra 3500HD

7 recalls · 13 complaints

F

2017 GMC Sierra 3500HD

7 recalls · 13 complaints

F

2016 GMC Sierra 3500HD

6 recalls · 19 complaints

Sources & method

Safety Signal starts every model-year at 100 and subtracts points per open NHTSA recall campaign by severity: critical 15 (fire risk, park-outside or do-not-drive advisories), high 8 (brakes, steering, airbags, loss of drive power, structure, battery), moderate 6, minor 3 (software, labels, lighting fixed by an update). Floor 35. A ≥ 90, B ≥ 80, C ≥ 70, D ≥ 60, otherwise F. Complaint counts and NHTSA crash ratings are shown separately and are not blended into the grade.

EPA figures come from fueleconomy.gov vehicle records. Recalls, complaints, investigations and crash ratings come from NHTSA's public flat files, refreshed weekly.

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