2019 Gmc Sierra 3500 problems, complaints & recalls
Most-reported problem areas: Service Brakes (3) · Vehicle Speed Control (1) · Steering (1)
🧭 Reliability snapshot
Compared against other Gmc Sierra 3500 model years — complaint volume vs the model's median year, recalls and severity. How we score →
Safety recalls (7)
Air Bags 2026-05-21 · campaign 26V325000 · 4,315 vehicles
Defect: General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2019 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 vehicles. The left-side or right-side roof rail air bag (RRAB) inflator end cap may detach from the inflator or the inflator sidewall may rupture.
Risk: A detached end cap or inflator rupture can allow compressed gas to escape and project the end cap or fragments of the inflator into the vehicle, increasing the risk of injury.
Fix: Dealers will replace both RRAB modules, free of charge. Owner notification letters were mailed June 24, 2026. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N262557310. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on May 21, 2026. This recall expands previous NHTSA recall number 26V166.
Air Bags 2026-03-19 · campaign 26V166000 · 2,819 vehicles
Defect: General Motors, LLC (GM) is recalling certain 2018 Chevrolet Silverado 1500, GMC Sierra 1500, 2019 Chevrolet Silverado 2500, Silverado 3500, GMC Sierra 2500, and Sierra 3500 Crew Cab vehicles. 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 detached end cap or inflator rupture can allow compressed gas to escape and project the end cap or fragments of the inflator into the vehicle, increasing the risk of injury.
Fix: Dealers will replace the left and right-side RRAB modules, free of charge. Owner notification letters were mailed April 16, 2026. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N262549710. Vehicle Identification Numbers (VINs) involved in this recall became searchable on NHTSA.gov on March 19, 2026.
Air Bags 2025-06-26 · campaign 25V432000 · 1,658 vehicles
Defect: General Motors (GM) is recalling certain 2018 GMC Sierra 1500, 2019 Sierra 2500, 3500, Chevrolet Silverado 3500, and Chevrolet Silverado 2500 and 2018 Chevrolet Silverado 1500 Crew Cab vehicles. 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 detached end cap or inflator rupture can allow compressed gas to escape and project the end cap or fragments of the inflator into the vehicle, increases 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 July 23, 2025. Owners may contact GMC customer service at 1-888-988-7267 or Chevrolet customer service at 1-800-222-1020. GM's number for this recall is N252513060.
Air Bags:side/Window:curtain:inflator 2024-10-10 · campaign 24V756000 · 2,061 vehicles
Defect: 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.
Fuel System, Diesel:storage:tank Assembly 2023-02-02 · campaign 23V047000 · 22,132 vehicles
Defect: 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
Equipment:electrical:engine Block Heater 2021-07-01 · campaign 21V496000 · 338,020 vehicles
Defect: 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. In
Engine 2019-04-25 · campaign 19V328000 · 318,374 vehicles
Defect: 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.
Service bulletins (663)
Technical service bulletins are repair instructions manufacturers send dealers for known issues. Unlike recalls, the fix is not automatically free — but naming the bulletin at the service desk can save diagnosis time and support goodwill repairs.
Unknown Or Other 2026-09-26 · PIP6133 · Service Bulletin/Repair Instructions
this pi was created to help address the correct repair regarding a low coolant message on the dic
Unknown Or Other 2026-09-26 · PIT5698F · Service Bulletin/Repair Instructions
this pi provides diagnostics tips on how the lin bus works and how to diagnosis it.
Unknown Or Other 2026-09-04 · PIP4902W · Service Bulletin/Repair Instructions
this preliminary information advises a dealer on how to email gds2 session logs into technical assistance.
Unknown Or Other 2026-08-27 · PIP6127A · Service Bulletin/Repair Instructions
this document assists gm dealer technicians with diagnosing torque converter concerns to ensure torque converter replacement is necessary. the torque converter part number will be placed on order restriction, and the technician will be asked to follow 25-na-148 before requesting a part through pqc.
Unknown Or Other 2026-07-23 · PIT5680B · Service Bulletin/Repair Instructions
this pi provides information to repair the door water deflector which is not sealed properly allows water into the door jam/sill area.
Unknown Or Other 2026-07-21 · PIT5099J · Service Bulletin/Repair Instructions
pi to help diagnose a/c concern
Showing the 6 most recent of 663 bulletins. Search all of them free at nhtsa.gov.
What owners report
2026-07-29 · Electrical System · 53,004 mi“the contact owns a 2019 gmc sierra 3500. the contact stated that while attempting to switch lanes, the side-view cameras failed to operate as needed. the vehicle was taken to a dealer where it was diagnosed with a disconnected wire from the side-view cameras. the wire had poor connection, which caused the cameras to fail due to low voltage. the veh…”
2025-12-18 · Unknown Or Other“approximately nov 15, 2024 is when the issue started. at approximately 44,000 miles the truck experienced a catastrophic oil coolant failure causing oil and coolant to mix. it is available for inspection. the incident happened suddenly as the truck was being driven. when pressing on the accelerator, the truck hesitated to move on several occasions.…”
2025-11-20 · Air Bags · 103,000 mi · 💥 crash“the contact owned a 2019 gmc sierra 3500. the contact stated that while driving during a rain storm at approximately 60 mph, the vehicle hydroplaned. the contact stated that the vehicle swerved to the right and then to the left. the contact stated that the vehicle drove off the road and down an embankment. the contact stated that he drove over a mo…”
2025-07-15 · Equipment · 242,000 mi · 🔥 fire“the contact owned a 2019 gmc sierra 3500. the contact stated while driving at approximately 45 mph, the vehicle went into “engine power reduced mode” and the contact attempted to pull over to the side of the road, but the contact stated that the battery went dead and the vehicle shutoff. the contact shifted to park(p) and attempted to restart the v…”
2025-05-19 · Service Brakes“i purchased my vehicle in 2019. since then, i have had several issues. i've had to replace the coolant reservoir, def heater/pump and twice changed the number 8 injector plug. the warning light came on just after the warranty went out. the code reader read the ambient sensor and no sensor. …”
2025-02-19 · Unknown Or Other“the other day approximately 5 minutes after leaving my house i noticed a smell and saw some slight smoke coming from my rear window. i immediately turned off the rear defrost and my rear window shattered. the next day i discovered other chevy/gmc vehicles have a recall for a short circuit in the rear defrost. unfortunately the dealership will not h…”
2024-10-20 · Fuel/Propulsion System“bought the vehicle new in 2019 currently at a dealership to have the third in tank electric fuel pump installed. when it was in the shop for the second fuel pump installation the technician informed me that the pump can go out at any time causing a potential accident. fortunately truck wouldn’t start and was diagnosed at dealership. …”
2024-05-29 · Service Brakes“service brake brake system comes on randomly. have to hit reset when driving. constantly…”
2022-10-11 · Service Brakes“the trailer brake system has stopped working and displays the message "service trailer brakes" it does this no matter if several different tralers are hooked to the truck. these trialers test fine in other trucks and with meters. the trailer brake controller does not work. there are many owners reporting the same thing. it is a critical safety fea…”
2022-02-26 · Exterior Lighting“intermittent issue with entire dash lights and radio lights going either fully out/off or extremely dark. adjusting dimmer does not correct the issue. affects driver safety due to acute driver distraction while trying to correct, and disables driver warning lights and all information systems, including towing related warnings (transmission temp/coo…”
Excerpts of consumer complaints filed with NHTSA, lightly truncated. They are owner statements, not verified findings.