2018 GMC Sierra 3500 recalls and problems
The 2018 GMC Sierra 3500 has 6 safety recalls and 14 owner complaints filed with NHTSA. Recall repairs are free at any GMC dealer.
Recalls may cover only some 2018 GMC Sierra 3500 vehicles. Check your VIN at NHTSA ↗ to see open recalls for your exact car.
2018 GMC Sierra 3500 recalls
Recall 24V-756: Air Bags
Problem: 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. The left or right-side roof-rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.
Risk: A 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.
Fix: 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. GM's number for this recall is N242474500.
Recall 23V-047: Fuel System, Diesel
Problem: 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. The rear fuel tank may collapse and prevent the fuel pump from transferring fuel to the front tank, resulting in an engine stall.
Risk: An engine stall increases the risk of a crash.
Fix: 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. 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.
Recall 21V-496: Equipment
Problem: 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. 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.
Risk: An electrical short-circuit can increase the risk of a fire.
Fix: Dealers 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. Interim owner notifications were mailed on August 13, 2021. Owner notification letters are expected to be mailed on April 4, 2022. Customers may call GMC customer service at 1-800-462-8782. GM's number for this recall is 212329840.
Recall 19V-328: Engine
Problem: 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 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.
Risk: A short-circuit may damage the engine components and increase the risk of fire.
Fix: 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. Owners may contact GM customer service at 1-586-596-1733. GM's number for this recall is N182206310.
Recall 19V-088: Fuel System, Gasoline
Problem: General 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.
Risk: If 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.
Fix: GM 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.
Recall 17V-567: Seat Belts
Problem: 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. As such, these vehicles fail to comply with the requirements of Federal Motor Vehicle Safety Standard number 209, "Seat Belt Assemblies."
Risk: The seat belt retractors may not perform as intended during a crash, increasing the risk of injury.
Fix: 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. GM's numbers for this recall are 17368, 17375, and 17376.
2018 GMC Sierra 3500 problems reported by owners
| Problem area | Reports | |
|---|---|---|
| Service Brakes | 6 | |
| Steering | 3 | |
| Exterior Lighting | 2 | |
| Electrical System | 2 | |
| Engine | 1 | |
| Electronic Stability Control (ESC) | 1 | |
| Power Train | 1 | |
| Visibility/Wiper | 1 | |
| Visibility | 1 | |
| Forward Collision Avoidance | 1 | |
| Fuel System, Gasoline | 1 |
Most reported parts
- Visibility › Defroster/Defogger/Hvac System — 1
- Forward Collision Avoidance › Automatic Emergency Braking — 1
Typical mileage at the time of the problem: 53,800 miles (median of owner reports).
Problems that are not covered by a recall are paid repairs; labor rates follow local mechanic pay — see what auto mechanics earn in each state.
Recent 2018 GMC Sierra 3500 complaints
Owner reports filed with NHTSA, as written (personal details removed). Complaints are not verified by NHTSA.
Other GMC Sierra 3500 years
Frequently asked questions
Does the 2018 GMC Sierra 3500 have any recalls?
Yes — NHTSA lists 6 recalls for the 2018 GMC Sierra 3500: 24V-756 (air bags), 23V-047 (fuel system, diesel), 21V-496 (equipment), 19V-328 (engine), 19V-088 (fuel system, gasoline) and more. Not every vehicle is affected, so check your VIN at nhtsa.gov/recalls.
What is the most common problem with the 2018 GMC Sierra 3500?
Owners report service brakes problems most often (6 reports), followed by steering (3). The typical mileage when problems were reported is about 53,800 miles.
Are GMC recall repairs free?
Yes. Safety recall repairs are free at authorized GMC dealers, whether you are the first owner or bought the car used.