10.0
really awful- Crashes / Fires:
- 2 / 4
- Injuries / Deaths:
- 0 / 0
- Average Mileage:
- 664 miles
About These NHTSA Complaints:
The NHTSA is the US gov't agency tasked with vehicle safety. Complaints can be spread across multiple & redundant categories, & are not organized by problem. See the Back button — blue bar at the very top of the page — to explore more.
The electronics freeze up and sometimes the stereo turns off and won't come back on. The transmission perks and then revs up then hits gear and kicks real hard. The transmission feels like it's going to vibrate out from under the truck going down the road at certain speeds!
- Fairview, WV, USA
My 2021 Chevrolet Silverado, with approximately 84,000 miles, experienced a premature and catastrophic transmission failure while driving. The vehicle began to shudder severely and lost its ability to accelerate properly, creating an unsafe driving condition. I was able to get the vehicle to a dealership. The dealership diagnosed a complete torque converter failure requiring a full transmission replacement. Crucially, at no point before or during this failure did the vehicle's onboard diagnostic systems provide any check engine light or warning message. A sudden loss of power and transmission function on a highway is a major safety risk. I believe this is a widespread defect that needs to be investigated before it causes a serious accident.
- Murrieta, CA, USA
2021 Silverado tailgates often stop working due to a faulty, corroded electronic switch caused by water intrusion. A major 2020-2024 GM recall exists for this, which can cause unexpected opening. Check for corrosion in the tailgate switch/connector, a pinched wiring harness, or check for a blown fuse. This is the 2nd time my truck is at ganley Chevy in Cleveland Ohio. They already fixed 1 rotted wire due to corrosion. And now having same issue again that tailgate won-??t open. They told me approximately $1000 to find and MAYBE fix the problem. This truck should be included in the recall as to it falls under the year of the issues and that it-??s the same EXACT ISSUES AS LISTED Again they have my truck in shop and I feel my truck falls under the recall proximity of said items.
- Parma , OH, USA
Window switch failed and I was unable to roll down the window. Dealer confirmed and performed repairs. Problem occurred on a dry day with no previous issues and the dealer stated it was manufacturing defect with the switch.
- Townsend , GA, USA
I just bought this truck off a used car lot certified dealer and I noticed the engine light on then the truck would hesitate to start and I know the battery is dying so I looked it up and I got a recall on 2021 Chevy Silverado just like mine just wondering why mine is not under recall or why won-??t mine get fixed but everybody else is the same year in the same problems can get fixed. I think mine should be fixed.
- Walton, KY, USA
Check engine turned on and at the same time the vehicle turned into safety mode abruptly, it slowed down to 10 miles an hour while on the high way and receiving a message stating that the "engine power reduced", the issue was presented to the dealership and they believe to be fixed with a sensor issue, the light came back on a few days after the initial repair and once again the engine lost power while driving the vehicle, the vehicle was then taken back to the dealership for repair once again, both times I mentioned the service bulletin, which they did not consider in their repair, stating that the issue was specific for a code (which all codes present are in the service bulletin) the 2nd repair was done on a actuator, which they stated should fix the issue, and did not, a 3rd time the vehicle lost power while hauling a trailer, this time I brought up the concern of them not reviewing the service bulletin, this time they confirmed that the service bulletin was the issue causing the check engine light (GM service bulletin no: 21-NA-149) now they are looking to slowly start repairing the issue and wait for the check engine light to turn on again to then go back and forth and review step by step the instructions in the bulletin.
- Glendale, AZ, USA
The vehicle has an electric tailgate lock switch failure/defect. The tailgate unlocks on its own and pops open while driving, at stop lights, in drive-thru restaurants, and while parked which causes a safety hazard to the driver and passengers in the vehicle, as well as other drivers around the vehicle. Even after closing the tailgate, it will unlock and pop open on its own again. Then, I tested the closed, locked tailgate by shacking and pulling it open from the top edge which caused the tailgate to unlock and open on its own. This causes a thief risk of personal belongings and vehicle parts. There are no warning lamps or messages about the component failure. Since no recalls for the vehicle's VIN number are listed, it has not been confirmed by the dealer.
- San Antonio, TX, USA
The tailgate randomly opens and closes during driving causing contents to fall out of the tailgate and creating a hazard for other motorists and damaging personal property. The tailgate now will not open and there is no manual override to open the tailgate. Certainly a design flaw and now not allowing access to the tailgate. I've contacted 5 local gm/chevrolet dealer service departments and they cannot offer any guidance on how to manually or power open the tailgate. I have a tonneau cover on the tailgate which makes it pretty much unable to access. I'm a firefighter and put my gear in the tailgate and need access asap. Please advise on how I can get GM/Chevy to assist with this issue. A police officer was behind me when the contents fell out of the tailgate on 6/9/25. This has happened several times since and most recently on 1/17/26. This needs addressed asap. Thanks!
- Wadsworth, OH, USA
1- Tailgate keeps opening by itself. It has opened while driving down the highway and things fell out of back of my truck almost causing an accident. It has opened while sitting in my driveway after I have turned the truck off and gone inside. I have reported this to a dealer they said my vin is not on the recall list. I would like my VIN added since it is obviously an issue with the Silverado's. 2- I recently has to bring my truck to the dealer for the transfer case sounding like there were bolts in a blended and a pinging sound by the bell housing while in park. They stated it was the front axle and fixed it saying it was a power train thing. The noise is back and now out of warranty.
- Youngsville, NY, USA
A week or two before I took my truck into decorah Chevy isr because tailgate was going up and down all by itself while I was driving or parked without me by it. They said it was just the latch button. So they fixed it they said and still my blinker lights would just come on and then I hit a deer and my seatbelt did not latch and my airbags didn't deploy even though my app says they did. I'm wondering if all three are connected with electrical. Either way my air bags did not deploy and my truck has extensive damage and my seatbelt didn't lock,
- Lime Springs, IA, USA
The vehicle has been showing a -??shift to park-?? message error upon shutdown even though the vehicle is fully in park and door automatically unlock when parked. This has left the accessories on and drained the battery
- West Allis, WI, USA
Vehicle was at a stoplight with the auto start button engaged on it. The vehicle completely stalled. All the power is drained from the car. leaving me stranded in the highway. I got it towed and when replacing the battery still nothing will roll over or even turn on.
- San Antonio, TX, USA
This is a recurring and random issues: 1. The "Stereo" shuts off and will take anywhere from a minute to 10 minutes to come back on. The issue is: a. This cuts out the use of hands free operation. b. It stops all use of GPS c.I can no longer use my cell phone to call in an emergency 2. The backup camera (which is the "Stereo") goes blank or dark on occasion. Cannot see to the camera for backing up anymore. 3. The "Stereo" stops responding, but still has power. This means the radio or music or whatever is still playing but I cannot turn it DOWN or OFF. Very unsafe that I cannot turn this off when driving, cannot hear sirens, etc. I have tried to have this addressed by Chevrolet. They "reset" the truck but I did not work. They want to replace the "stereo/backup camera/communication system" but cannot guarantee this will actually fix the issue. It is over $2000 to "try" this fix I contacted GM customer service and was told NO RECALL, NO RECOURSE
- Montrose, CO, USA
Auto tailgate would open and shut on its own, the rear tailgate button stopped working and then only the interior switch would work, Then after a month, the tailgate would not open and switch shorted out. Seems very similar issue as other chevys with water intrusion.
- Rensselaer, NY, USA
While driving at anywhere from 18-?"25 mph or 70-?"85 mph, my speedometer starts going crazy, the engine accelerates or decelerates, the speedometer shows random numbers, and you can hear and feel that the motor power feels different. Not all the times but is started to show more often
- Liberty Hill, TX, USA
The following is a list of persistent electrical failures in my vehicle, several of which present a significant safety risk. I have attempted to resolve the issues: -??Emergency OnStar Button Failure: My vehicle's emergency OnStar buttons consistently fail to function when the ignition is off. This is a critical safety defect, as the system is designed to work on a backup battery during an emergency, such as a crash. The system only operates when the ignition is on. -?? Excessive and Dangerous Floor Hump Heat: Following a service visit on October 2, 2025, the front floor hump became excessively hot, melting personal items and posing a fire and burn risk. -??Fabricated Safety Warnings: The vehicle's computer system repeatedly displays false and misleading messages. Examples include an incorrect "new brake pads detected" prompt and a "taking your eyes off the road" warning that does not apply to this vehicle. These phantom messages are distracting and can cause driver confusion. -??Persistent Connectivity Failures: The vehicle experiences frequent and consistent failures with its Wi-Fi and GPS systems, indicating a potential electrical or software malfunction. Numerous resets attempted by the manufacturer's technical support have not resolved the issue. -?? Computer Display Anomaly: the Chevrolet symbol appeared in red on the computer screen when the truck was started. The vehicle has repeatedly experienced spontaneous changes to the radio station and the air conditioning switching from cold to hot without driver input. -??Unusual Decompressing Sound: When the vehicle has been sitting for an extended period, an unusual decompressing sound can be heard coming from the rear underside whenever a door is opened. Date: Software updates on January 27, 2025 and October 2, 2025. Diagnostic Test performed on October 2, 2025 that failed to resolve the issues. The OnStar buttons only works when the vehicle is turned on. I do have photos and videos available to support your claim.
- Philadelphia , PA, USA
The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the vehicle failed to start. The vehicle was taken to the local dealer, where it was diagnosed and determined that the battery needed to be replaced. The vehicle was repaired on two occasions, but the failure persisted. While attempting to open the trunk, the trunk failed to open. The manufacturer was not contacted. The failure mileage was approximately 500.
- Detroit, MI, USA
See attached document for complaint.
- Maysville, KY, USA
Vehicle: 2021 Chevrolet Silverado 1500, 3.0L LM2 Turbo Diesel Mileage at most recent failure at 106k miles Complaint Narrative This vehicle has experienced repeated, serious defects affecting engine, transmission, emissions system, and safety recall performance. Despite numerous repair attempts over three years, the problems remain unresolved and the vehicle is currently undriveable and held by the dealership (since August 17, 2025). Key safety concerns: Transmission failure: Transmission catastrophically failed at 78,942 miles due to excessive metal contamination, requiring full replacement. Transmission issues have persisted even after replacement. Recall N24254440 (rear wheel lock-up): Dealer attempted recall repairs multiple times in 2025 but failed due to programming errors. Recall remains incomplete and unresolved. Hard starting / reduced power: Vehicle intermittently fails to start or loses propulsion, creating risk of stalling in intersections or traffic. Engine/emissions failures: Multiple check engine events with NOx sensors, exhaust differential pressure sensors, and coolant flow valve failures. Current status: Vehicle has been in dealer custody since Aug 17, 2025, with no completion date. Dealer reports unresolved oil leak, check valve/box sensor replacement pending, and open recall not fixed. The cumulative history shows systemic defects across powertrain and emissions systems, ongoing safety recall failures, and lack of durable repairs. I am providing all invoices, videos, and documentation upon request. --- Chronological Service Timeline Invoice #Mileage (in/out)DateReported Issue / Repair Attempt 33432337,290 -?' 37,62607/11/22 -?" 07/30/22Check engine light. Multiple fault codes. Dealer performed diagnostics, suspected exhaust leak, removed components for inspection. 33433837,450 -?' 37,50807/
- Wahiawa, HI, USA
- Elmendorf, TX, USA