Which parts fail
Components named in complaints (engine, cooling system, oil leaks, timing chain, exhaust).
Mileage when the problem started
Owner reports
Selected complaints filed with NHTSA by 2019 Chevrolet Silverado 2500 owners, lightly cleaned up (personal details are redacted by NHTSA).
The contact owns a 2019 Chevrolet Silverado 2500. The contact stated while driving at an undisclosed speed, the service engine message was displayed. The vehicle was taken to the local dealer where it was diagnosed and determined that the Oxygen (O2) sensor needed to be reset. The vehicle was not repaired. The contact stated that while driving at various speeds, the service engine message was displayed. The vehicle was taken to an independent mechanic who informed the contact that the failure was due to the O2 sensor. The vehicle was taken back to the local dealer who informed him that parts were on backorder. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure but no additional assistance was provided. The failure mileage was approximately 71, 000.
The contact owns a 2019 Chevrolet Silverado 2500. The contact stated that while driving at an undisclosed speed, the low coolant warning light illuminated. The contact stated that the warning light had been reset daily; however, the warning light illuminated daily. The vehicle was taken to the dealer and diagnosed with a faulty coolant reservoir container. The contact was informed that the coolant reservoir needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to report the failure to the NHTSA Hotline. The failure mileage was approximately 72,000.
The contact owns a 2019 Chevrolet Silverado 2500. While driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed and it was determined that the injection pump needed to be replaced, and that the vehicle was not drivable. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline to report the failure. The contact researched and became aware of an unknown recall; however, the VIN was not included. The failure mileage was approximately 194,000.
The contact owns a 2019 Chevrolet Silverado 2500. The contact stated while driving at various speeds, the vehicle lost motive power. The accelerator and brake pedals became inoperable. The check engine warning light was illuminated. Additionally, the engine power reduced message was displayed. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the failure was caused by a faulty oxygen sensor. The manufacturer was not made aware of the failure. The failure mileage was approximately 44,000. The VIN was not available.
Prior to 04/25/21 and 08/25/21 I was traveling 60mph on I-205 in the fast lane when my truck went into limp mode. I nearly caused an accident because the truck started shaking, all check engine lights illuminated, and it was challenging to navigate to the right lane and off the highway. This happened on two separate occasions. GM sent a letter dated August 2021 that my truck, "equipped with a 6.6L diesel engine, may have a condition that could cause the engine glow plugs to fail." The letter goes on to say that GM will cover this issue "within 15 years of the date your vehicle was originally placed in service or 150,000 miles (240,000 km), whichever occurs first, the condition will be repaired for you at no charge." GM charged me for the repair. The issue is the language in the letter and the word "condition". …
I was driving my truck and lost full power to the truck. Which happened as I was pulling out of a parking. The truck went into a limp mode. With the truck losing full power, it put my child and I into a safety risk. The truck got repaired at the dealership. The dealer was able to reproduce the issue. The truck was inspected at the dealership. Warning system did come on saying speed would be limited if (roughly 150 miles to a max 65mph). When I called another dealership, they said this was a normal thing for these trucks and chevy hasn't fixed it. I feel like if its a known issue with the wiring becoming free, why would they not proactively fix this issue before someone gets hurts from thinking they have the power to drive. The dealership that I took this too knew where to look right away as this is common.
All or most of the 2019 Chevrolet Silverado 2500 and 3500 models are having the same exact issue, the coolant hoses that cools transmission oil are exposed metal to metal rubbing against each others, and over time from driving normally will eventually cause transmission oil leaks in different areas of the hose element, GM technicians acknowledge it a faulty design from the manufacturer , so GM adapted a customer loyalty program but only to deny a fix or repair at there own expense. This is definitely should fall under a manufacturer recall.
Vehicle has, on multiple occasions, had blinker lights flicker while vehicle is turned off. Vehicle has locked by itself, without anyone touching the lock buttons. Vehicle has had multiple issues with the fuel injectors, where the vehicle will read "reduced power engine." Vehicle has been to a Chevrolet dealership for repair, although the issue still persists. I believe there is an electrical circuit issue with this vehicle, and there has been recalls on this model for exact reasons.
The Variable Geometry Turbocharger Actuator failed on my 2019 2500HD Silverado. There was a significant decrease in power. This was most noticeable on uphill grades where speed would drop to between 35 and 40 mph on a 75mph speed limit highway. On several occasions, vehicles came close to hitting me because of my slow speed.
vehicle often dose Regen (burning of diesel exhaust for emissions). When vehicle is in regen, outside of the truck, there is a strong odor of burnt rubber mixed with toxic fumes. It is more noticeable on the passenger side rear under the right rear tire. You can also smell exhaust gasses inside the vehicle
Related recalls
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.
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.
Engine complaints in other Silverado 2500 years
Frequently asked questions
How common are engine problems on the 2019 Chevrolet Silverado 2500?
NHTSA has 21 complaints about the engine & cooling of the 2019 Chevrolet Silverado 2500, 28% of the model year's 74 complaints. The component named most often is exhaust system (1 mentions).
Is there a recall for 2019 Chevrolet Silverado 2500 engine problems?
Yes — NHTSA recall 19V-328 (engine, Apr 25, 2019). Recall repairs are free at authorized dealers.
At what mileage do 2019 Chevrolet Silverado 2500 engine problems start?
Half of the complaints with a recorded mileage happened before about 25,000 miles, and 50% before 25,000 miles.
Is it dangerous?
Owners linked 0 crashes, 4 fires and 1 injury to engine & cooling problems on this model year. If you notice symptoms, have the car checked before driving further.
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.