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 vehicle was not repaired. The manufacturer was notified of the failure and stated that the part to repair the vehicle was no longer manufactured. The failure mileage was 53,004. The VIN was unavailable.
The worst 2019 GMC Sierra 3500 problems
Ranked by number of owner complaints. Mileage and cost come from what owners wrote.
- Brakes4
- Electrical3
- Engine3
- Acceleration1
- Airbags1
Problems by type
Tap a problem to see which part fails, at what mileage and in which other years.
- Brakes4
- Electrical3
- Engine3
- Acceleration1
- Airbags1
- Fuel system1
- Lights1
- Steering1
- Transmission1
Recalls 7
Air bags
- What is wrong
- 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.
- Remedy
- 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 on May 21, 2026. This recall expands previous the federal safety agency recall number 26V166.
Recall number 26V325000 · Recall details
Air bags
- What is wrong
- 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.
- Remedy
- 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 on March 19, 2026.
Recall number 26V166000 · Recall details
Air bags
- What is wrong
- 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.
- Remedy
- 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.
Recall number 25V432000 · Recall details
Air bags: side/window: curtain: inflator
- What is wrong
- 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.
- 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. GM's number for this recall is N242474500.
Recall number 24V756000 · Recall details
Fuel system, diesel: storage: tank assembly
- What is wrong
- 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.
- 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 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 number 23V047000 · Recall details
Equipment: electrical: engine block heater
- What is wrong
- 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.
- 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 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 number 21V496000 · Recall details
Engine
- What is wrong
- 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.
- 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. Owners may contact GM customer service at 1‑586‑596‑1733. GM's number for this recall is N182206310.
Recall number 19V328000 · Recall details
Technical service bulletins for the 2019 GMC Sierra 3500 665
Bulletins tell dealers how to fix known problems. A warranty extension means the manufacturer pays for that repair for longer.
- This service bulletin provides information about GM Accessories
- Unknown or other
- Unknown or other
- This PI provides Diagnostics tips on how the LIN bus works and how to diagnosis it.
- This PI was created to help address the correct repair regarding a low coolant message on the DIC
- Unknown or other
- This document assists GM dealer technicians with diagnosing torque converter concerns to ensure torque...
- This PI provides information to repair the door water deflector which is not sealed properly allows water...
- This PI provides diagnostic tips for diagnosing electric trailer brakes issues.
- PI to help diagnose A/C concern
What 2019 GMC Sierra 3500 owners say
Most recent owner complaints, unedited.
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. The issue was confirmed by an authorized GMC service center. The truck has been inspected by the authorized GMC service department. The warning light came on after the damage was done. There was no other sign of an issue. It wasn't until the next day when the truck was started, that the warning light appeared. No leaks of any kind.
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 mound, and the vehicle was launched into the air, and, according to the police report, he traveled approximately 100 feet. The contact stated that the vehicle landed on the front end. The force of the crash had bent the vehicle frame behind the engine. The contact stated that as the vehicle's front end crashed into the ground, his forward momentum sent him into the center console. The contact stated that the center console struck his face and caused lacerations and a bloody nose. The contact stated that the police and emergency services had arrived on scene. The contact stated that a report was written, but he did not have the report number. The contact stated that he had bent the top half of the steering wheel from the force of the crash. The contact was transported to the emergency room. The contact was advised that he had fractured vertebrae between L1 and L3 and had bruised ribs on his right side. The contact stated that the vehicle was towed to an impound lot and later declared a total loss by his insurance provider. The contact stated that none of the front air bags had deployed. The contact stated that the police and the insurance provider confirmed that no air bags had deployed. The manufacturer was informed of the failure. The failure mileage was approximately 103,000.
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 vehicle; however, the vehicle failed to restart, and smoke started coming from under the hood. The contact stopped attempting to restart the vehicle, and exited the vehicle and raised the hood, and the vehicle was on fire in the engine compartment on the left side of the firewall. The contact stated that there was gray and white smoke coming from the vehicle and an odor of electrical wires burning. The contact attempted to reach for a fire extinguisher but was informed by another driver who had stopped to see if the contact needed assistance, to step away from the vehicle. The other driver saw the flames coming from the engine compartment and told the contact to step away from the vehicle because it was unsafe to attempt to extinguish the flames, and the engine compartment became engulfed in flames. The Fire Department was contacted and arrived on scene and extinguished the fire. The contact stated that the front end of the vehicle and the front bumper, hood, engine, and engine components were damaged by the fire. Additionally, the front windshield was severely damaged. The vehicle was towed to an impound lot and declared a total loss by the Insurance provider. The contact stated that the Fire Department filed an incident report. The manufacturer was not informed of the failure. The contact related the failure and the fire to the federal safety agency Campaign Number: 21V496000 (Equipment) which was associated with the VIN. The failure mileage was approximately 242,000.
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.
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 help me until there is a recall with my vin as there is not an open recall on my vehicle.
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.
Service brake brake system comes on randomly. have to hit reset when driving. constantly
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 feature to stop the truck & trailer and probably already has led to some fatalities. Please issue a recall. Thank You.
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/coolant temp, etc) Dealer advises to bring it back when it is occurring, but occurrences are not predictable, nor do they occur on a regular basis. Cause is unknown, but since dimmer switch does not correct this issue, it is the probable cause.
Compare the 2019 GMC Sierra 3500
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Questions about the 2019 GMC Sierra 3500
Is the 2019 GMC Sierra 3500 reliable?
Owners have filed 13 complaints about the 2019 GMC Sierra 3500, fewer than a typical Sierra 3500 model year.
What is the 2019 GMC Sierra 3500 year score?
The 2019 GMC Sierra 3500 scores 73 out of 100 (average). The score compares it with the other model years of the GMC Sierra 3500: 75 is a typical year, 50 means twice the usual complaints, and serious complaints and recalls lower it.
What is the most common problem with the 2019 GMC Sierra 3500?
Brakes, with 4 complaints. Next is electrical (3).
How many recalls does the 2019 GMC Sierra 3500 have?
7 recalls, covering air bags, fuel system, diesel and equipment.
What year does the GMC Sierra 3500 have bad brakes?
The GMC Sierra 3500 model years with the most brakes complaints are 2001 (16 complaints), 2004 (14 complaints) and 2000 (12 complaints).
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