This data is from the NHTSA — the US gov't agency tasked with vehicle safety. Complaints are spread across multiple & redundant categories, & are not organized by problem.
So how do you find out what problems are occurring? For this NHTSA complaint data, the only way is to read through the comments below. Any duplicates or errors? It's not us.
I had just received my truck back from a complete engine replacement from the dealer and had driven it 10 miles back to my house and the check engine light came on and the dash said reduced power service DPF system. The truck was towed to dealer for PO302 code and injector #3 was replaced.
I was driving down the highway with my children to see a movie when my trucks check engine light came on and started surging and losing power we were struggling to drive 5 mph on the shoulder of the road to make it to the closest exit ramp for a safe place to stop. We were able to make it to the ramp but couldn't exit completely because it was an up hill grade. The vehicle was towed to the dealer for a complete engine replacement. The vehicle suffered from a thrust bearing failure.
I was driving home from a camping trip with my children when my truck occurred a reduce speed error on the dash and the truck went into limp mode. I found out through GM Onstar that the truck threw a PO6DD code. The vehicle was towed to dealer and the oil pressure valve was replaced and also a wiring harness.
Purchased new and after 3 weeks (about 600 miles) I was on highway between 60-70 MPH truck started to shutter like it was losing power and would not accelerate. I complained to the sales person and he stated it ran a little rough when purchased first day - I was told it just needs to warm up. Took truck to dealer and they determined at this time it was a misfire and lifter bank issue. There seems to be an issue widespread - I am not comfortable with car and if on the highway i am not able to accelerate properly or becomes unreliable at the time to accelerate I am worried about safety.
traveling at 75 MPH on highway truck went into reduced acceleration mode putting my wife and I in danger. There were many simi trucks having to swerve as my vehicle reduced speed at a high rate and was unable to safetly come to a stop. there was a bulletin released prior to my purchase that was not disclosed that could have warned of potential danger of complete engine loss. was told by dealership engine grenaded dealership confirmed needed new engine and turbo and they are on back order which leads me to believe that I am not the only one this has happened to.
- Albuquerque, NM, USA
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6 weeks since purchase and only 2000 miles-engine suddenly made a horrible rattling noise and stalled. Towed to dealership and was told engine was dead and needed replacement.
I purchased the vehicle on 8-23-25. On 10-23-25 while driving my daughter to school I received a message on the dashboard that said "reduced acceleration mode drive with care." I immediately drove to the dealership. After a few hours I was told by the dealer that the diagnostic code of PO6DD "Engine Oil Pressure Control Solenoid Valve Stuck Off" had been recorded and a full engine replacement will be required. The vehicle has 3307 miles on it and has been at the dealership since. Engines for this vehicle are on back order and there is no timeframe available on when a new engine will be available.
At 5,750 mi. the 6.2 gas engine seized due to connecting rod bearings. The dealer replaced the engine, cooling system and oil cooling system under warranty with a similar engine. I am of the opinion that it could have been at least partly due to the low viscosity motor oil that the manufacturer insists upon to maintain the factory warranty, 0-W20 synthetic, along with a poorly engineered fuel management system. Also, once the vehicle was stopped and put into park, the electronically controlled transmission refused to change gears, to be put into neutral, in order to be pushed out of traffic and on to a tow vehicle, it had to be dragged. The vehicle is extremely unreliable and a danger to the public.
On the evening of August 27, 25, when exiting the highway ramp, the vehicle's engine suddenly stopped and stalled, the gear automatically shifted to neutral, and the hazard lights could not be turned on. After about 2 minutes, it restarted normally and turned on the hazard lights.
My 2025 Chevy Silverado ZR2 has experienced the same dangerous system failure five times. While driving, every warning light on the dash activates, I lose power steering, and the vehicle completely shuts down and won-??t restart. This creates an extreme safety risk -?" the first failure happened on a local road, but most recently, it occurred while my family was driving out of state during a holiday. The truck has now been out of service for over 50 cumulative days across these repeated incidents. GM has accepted a Lemon Law claim but has not resolved it, leaving me without a vehicle and no clear path forward. These systemic failures present serious risks to me, my family, and other drivers. The latest failure occurred in July 2025, and the vehicle remains at Bill Cramer Chevrolet in Panama City Beach, FL with no resolution. I am still making loan payments and paying for transportation out-of-pocket, without any support from the manufacturer.
when coming to a stop, the truck idols high before slowly going down. Seems unsafe as if is not wanting to stop. I am also hearing a chirping coming from under the hood.
The "Auto-stop" feature of the engine apparently automatically turns itself on every time the engine is started. there is no warning light or other indication that it is on except a very small light ON THE SWITCH TO SHUT OFF. The auto-stop function itself is inherently unsafe because it shuts the engine off and doesn't restart it until the operator removes his foot from the brake.... -sometimes it takes several seconds to restart. If you take your foot off from the pedal and then put it back on and the vehicle rolls back a bit, it may not start at all, necessitating shifting to park and manually restarting the engine. If it does start late, the engine may surge and the vehicle will lurch ahead into traffic. I have had two close calls because of the "auto-stop", once causing a semi-trailer truck to veer away to miss me. Any driver that fails to disengage the auto-stop function on engine start is putting his own and other peoples lives in danger. NO FEATURE AFFECTING ENGINE ON-OFF, VEHICLE SPEED, STEERING, OR BRAKING SHOULD EVER BE ENGAGED WITHOUT A SPECIFIC COMMAND BY THE OPERATOR OF THE VEHICLE. WHEN IT IS ENGAGED, BY THE OPERATOR, AN AMBER WARNING LIGHT SHOULD SHOW ON THE DASH PANEL AND STAY ON AS LONG AS THAT AUTOMATIC FEATURE IS ENGAGED. IF NOT, THE VEHICLE MANUFACTURER SHOULD BE HELD TOTALLY AND SOLELY RESPONSIBLE FOR ANY ACCIDENT THAT OCCURS AS A RESULT OF THAT FEATURE.
Days after purchasing the vehicle brand new back in 2023, it began having issues with what they thought was the new 4 cylinder mode working itself in or electrical shifting needed to be replaced-?? After numerous years of being stalled out on highways, unnecessary repairs made, lose of business revenue, and more. It turned out to be a faulty engine with bad bearings, & levers. Over time, got worse & left unseen causing it to officially blow. The shutdown modes prior were all left undetected or resolved by dealership service stations. After being told of suspicious knocking since only thousands of miles out on.
A D V E R T I S E M E N T S
- Collegeville, PA, USA