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I have been having issues with my vehicle for the last 1,000 miles or so where it appears to be losing power while accelerating normally, i'm not sure if the issue lies with the engine or powertrain/transmission.   I took to dealer last week and they were unable to reproduce.  The issues have been getting more frequent and intially were only occuring after the vehicle warmed up, now it has started while vehicle is cold.  Feels like the power drops (rpms drop) during a normal acceleration.   As of 7/16 I now have a check engine light on, onstar indicates an issue with my engine, transmission, electrical.     This is putting myself at safety risk along with others as during my normal drive the engine is losing power and could either leave me stranded or cause an accident.

CHEVROLET SILVERADO 1500 2026 POWER TRAIN

What component failed:  The âregen on demandâ switch broke while using it.    Safety:  This incident put me, the occupants of my vehicle (my children), and the vehicles around me at risk.    Reproduction:  There was no need.  It is exceptional obvious that the switch is broken and has failed.   Inspection:  The truck and broken switch were observed by the dealership that services the truck.   Warnings:  There were no precursors to the failure.  Narrative:  On Thursday, 7/16/26, I was driving my 2026 Chevrolet Silverado EV. I normally drive in âsingle pedal driveâ mode which provides energy recovery in lieu of mechanical braking. Additionally, I use the âon demand regenerationâ for additional slowing and energy recovery.   On demand regeneration is somewhere between single pedal drive and mechanical brakes.   During this drive I was coming up to stopped traffic and slowing using the regen on demand switch.   The switch snapped / broke and the additional slowing / energy recovery stopped instantly. I had to immediately apply the brakes in order to remain a safe distance from the vehicles in front of me.   While I am able to safely operate the vehicle without this function, the manner in which the failure occurred is concerning and should be investigated.    I am happy to speak with anyone who needs more information.

CHEVROLET SILVERADO EV 2026 FUEL/PROPULSION SYSTEM

The forward collision warning is excessively sensitive to vehicles and pedestrians.  I've had the alert go off recently for something so simple as pulling into a parking spot.   It goes off frequently just driving past pedestrians and throughout what I consider to be normal driving where I am not coming close to a collision with a vehicle.  It is very unsettling and startling when the alert goes off indicating that I am coming close to a collision with a vehicle or a pedestrian.    I had a 2023 Silverado 1500 LT/2.7 Turbomax engine and it was not this sensitive.  I fear that this may actually cause an accident at some point or if the emergency braking were to activate with another vehicle behind me.

CHEVROLET SILVERADO 1500 2026 FORWARD COLLISION AVOIDANCE: WARNINGS

While driving my truck returning from a camping trip I received the following warnings in the dash: Service ESC, Service traction control, forward collision system unavailable.  Check engine light was flashing.  I made the assumption that the Check engine light was due to the warnings listed above.  I continued to drive the vehicle until I began to feel a very noticeable shudder at idle, at low speeds, and also loss of power at higher speeds.  The truck has the 5.3 ecotec engine with DFM.  After researching the symptoms, I found that these symptoms are identical to the know lifter problem with that engine.  The truck is a 2026 Chevrolet Silverado Trail boss with approx. 3454 miles on it.  It's currently at the dealership waiting for them to "diagnose" the problem.  I was told that it may just be a "faulty sensor", but after reading other people's experience with this engine I believe that the real problem is a damaged lifter/lifter pin due to the poor design and engineering of the DFM system

CHEVROLET SILVERADO 1500 2026 FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

At approximately 3,000 miles, the engine began making a loud knocking noise that became progressively worse while driving. The truck was diagnosed as needing a complete engine replacement. No warning lights, no check engine light, nothing. For someone inexperienced with vehicles, you could easily be in big trouble on the highway and a potentially life threatening situation.  My primary concern is that there was no warning that such a major engine failure was about to occur. An engine that fails with so few miles raises concerns about the possibility of sudden loss of power, loss of acceleration, or engine seizure while driving in traffic, on highways, or while towing. A failure under those conditions could significantly increase the risk of a crash.  The vehicle has been out of service while I continue making loan and insurance payments on a brand-new truck that I cannot use. The replacement engine is on national backorder, leaving me without a clear repair timeline.  After researching this issue, I found numerous reports from other owners describing similar failures involving the 6.2L V8 engine. Based on the volume of owner complaints, there appears to have been a significant increase in reported engine failures involving 2026 model-year vehicles. This suggests the problem may not be an isolated incident but instead could indicate a broader defect that deserves investigation.  As a result of this experience, I no longer feel confident or safe driving this vehicle, even if the engine is replaced. I purchased a brand-new truck expecting long-term reliability and peace of mind, but instead I experienced catastrophic engine failure at only 3,000 miles. I respectfully request that NHTSA investigate these engine failures to determine whether a safety-related defect exists and whether further action is necessary to protect consumers.  I have requested a buyback, but GM completely denies it. Such a horrible Expy with manufacture.

CHEVROLET SILVERADO 1500 2026 ENGINE

2026 Chevrolet Silverado 4WD — vehicle data sourced from FuelEconomy.gov.

The 2026 Chevrolet Silverado 4WD is a capable standard pickup truck designed for work and adventure. With its robust 4-Wheel Drive system and powerful 3.0L turbo engine, it's built to handle demanding tasks.

	2020	2021	2022	2023	2024	2025	2026
product.price	—	—	—	$36,300	$37,300–$85,000	—	—
specs.engine_capacity	4.3L	5.3L	3L	2.7L	2.7L	5.3L	2.7 L
specs.fuel_type	Regular Gasoline	Regular Gasoline	Diesel	Regular	Regular Gasoline	Regular Gasoline	Diesel
specs.transmission	Automatic 6-spd	Automatic 10-spd	Automatic 10-spd	Automatic 8-spd	Automatic 8-spd	Automatic 10-spd	8 speed automatic
specs.body_type	Standard Pickup Trucks 4WD	Standard Pickup Trucks 4WD	Standard Pickup Trucks 4WD	Standard Pickup Trucks 4WD	Standard Pickup Trucks 4WD	Standard Pickup Trucks 4WD	Pickup Truck

Chevrolet Silverado 4WD (2026) product.specifications