2018 GMC Sierra 2500 Recalls, Complaints & Specs
5 safety recalls list the 2018 GMC Sierra 2500, and owners have filed 35 complaints with NHTSA. Check your own VIN below.
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5 safety recalls for the 2018 GMC Sierra 2500
Most recent first. Recall repairs are free at any authorised dealer. Click a recall for the full defect, consequence and remedy text.
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Inflator (air bags)
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.
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…
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Tank assembly (fuel system)
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.
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. An interim owner notification…
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Engine block heater (equipment)
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…
Remedy: 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…
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Engine
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…
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…
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Retractor (seat belts)
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…
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…
35 owner complaints filed with NHTSA
Owners of the 2018 GMC Sierra 2500 have filed 35 complaints with NHTSA; 2 describe a fire. The average mileage at failure in those reports is 16,692 miles. Complaints peaked in 2021 with 7 filed that year.
Most-reported components
What owners are reporting
“GM Duramax L5P diesel engine electrical connector for #4 fuel injector. This failure caused the Diesel exhaust brake, which controls downhill speed, to disengage, extreme shaking of the vehicle, emiss”
Owner complaint to NHTSA, May 9, 2026 · Electrical system
“The component that failed is the rear glass. Yes, it is available for inspection. The rear glass defogger stopped working and melted the tabs off of the glass and burned the tabs cover. The problem ha”
Owner complaint to NHTSA, March 10, 2025 · Visibility/wiper
Fuel economy and specs
EPA ratings for the 2018 GMC Sierra (Sierra 15 Hybrid 2WD, Sierra 15 Hybrid 4WD, Sierra C15 2WD, Sierra C15 Cab Chassis 2WD, …). Ranges cover every tested configuration.
| Combined | 17–20 mpg |
|---|---|
| City / Highway | 15–18 / 19–24 |
| Fuel | Gasoline or E85, Premium, Regular |
| EPA class | Special Purpose Vehicle 2WD, Special Purpose Vehicle 4WD, Standard Pickup Trucks 2WD, Standard Pickup Trucks 4WD |
| Engine | 6/8 cyl, 4.3/5.3/6.2 L |
| Transmission | Automatic 6-spd; Automatic 8-spd |
Compare GMC Sierra 2500 model years
Recall and complaint counts for every GMC Sierra 2500 model year in NHTSA's database.
Checking a specific 2018 GMC Sierra 2500
How do I know if my 2018 GMC Sierra 2500 has an open recall?
Enter your 17-character VIN above. The VIN is on the driver's side dashboard (visible through the windshield), the driver's door jamb sticker, and your registration or insurance card. The check runs against NHTSA's live database and tells you which campaigns list your vehicle. 5 campaigns currently list the 2018 GMC Sierra 2500; your car may already have been repaired under some of them.
Is the recall repair free?
Yes. Under federal law, manufacturers must fix safety recalls at no charge for vehicles up to 15 years old from the date of sale to the first owner. Contact any authorised GMC dealer with your VIN and the NHTSA campaign number (for example 17V567000).
What is the difference between a recall and a complaint?
A recall is a safety campaign filed by the manufacturer or ordered by NHTSA, with a defined defect and remedy. A complaint is a report an owner sent to NHTSA; it is not verified, but patterns of complaints are what trigger NHTSA investigations and, eventually, recalls.
Other GMC models
- Sierra 15008,930 complaints
- Acadia5,569 complaints
- Yukon4,989 complaints
- Sierra3,937 complaints
- Terrain3,124 complaints
- Jimmy2,720 complaints
- Envoy2,459 complaints
- Yukon XL2,417 complaints
Source: NHTSA recall and complaint databases and EPA fuel economy data, October 2026. Complaint counts are owner reports to NHTSA, not verified defects. Recall counts are safety campaigns that list this model year; whether a particular car was already repaired depends on its VIN. How this data is compiled.