2021 CHEVROLET SILVERADO 1500 Complaints

My 2021 Silverado (~29500 miles) pickup has a multifunction tailgate. I noticed about two weeks ago that the tailgate would unlatch and come down at random. I might unlock and open the door or I might start the vehicle or I might turn off the vehicle and the tailgate would come down. It is very random and has no pattern to why it is happening. The gate is electrically controlled inside the vehicle as well as the controls on the gate itself. I find this such a serious safety concern because you can not tell when it might come down and if you are pulling a trailer it could be disastrous. My main concern is that I might be backing into a parking spot, which I frequently do, and the tailgate is either down or comes down at the wrong time and at best I might back into something or at worst back into or pinch a person between the tailgate and another object. I have seen this problem reported online but I can not verify independently nor first person that it has happened to others. I am having the vehicle serviced next week under the existing warranty. There never were nor are there now any warning lamps to indicate a problem. Until the repair is completed I have put two bungee cords in place to hold the tailgate up.

Unknown system Tailgate lowered by itself. It was up when we got in and left and was down when we got to our destination. Luckily the only thing that came out was a golf towel and not the two sets of golf clubs as well. I believe this is a problem on other GM vehicles Has not been inspected and no warning lamps

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while his wife was driving on two occasions at approximately 20 MPH, the vehicle lost motive power and failed to exceed 20 MPH. The vehicle was towed to a dealer where it was diagnosed that the #2 lifter needed to be replaced. The vehicle was repaired but the failure reoccurred a few weeks later. Additionally, the contact stated that the vehicle stalled on three occasions while stopping and using the Auto START/STOP feature. The vehicle was not able to be restarted. On the last occasion, the brake pedal was depressed; however, the vehicle failed to stop as needed. The vehicle was taken to a dealer where it was diagnosed that another lifter needed to be replaced. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 6,000.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while the vehicle was parked, the tailgate independently unlatched. The contact stated that the failure occurred several times during the snow season. Additionally, the contact stated that due to the tailgate independently unlatching, damage was caused to the center of the tailgate. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 45,000.

I was driving along about 45 mph and the truck was cruising in overdrive so about 1500 rmp on tachometer. I hit the gas to climb a hill as truck started to lose speed and when it tried to shift out of od to pick up speed the brakes seemed to slam on and I skidded to almost a stop. This has happened several times when climbing a hill or anytime I have to pass a vehicle or accelerate from out of overdrive. The dealer could never seem to get it to reproduce during test drive. They recently said there is a service bulletin for this exact issue and are waiting for a new valve body for transmission. My service records show I had a new valve body installed last year due to transmission pump bearing coming apart internally. The valve body is only a year old. But this is a very dangerous situation. I have to drive my truck for work and I have to be really cognizant of how hard I touch the gas and what gear I am in. If this happens to anyone while on the freeway and a semi or another vehicle is too close their truck will downshift and lock brakes and it could cost a life. It only happens under these circumstances but it has to be a recall. A service bulletin doesn't get it as someone has to have it happen for it to even be looked at. I have to drive my truck as I do not have a choice. But a service bulletin shows that GM I'd aware of the issue but they are unwilling to do a recall. A lotnof silverados are on the road and inwould hate for anything to happen. It could ruin a lot of lives.

I purchased a used 2021 Chevrolet Silverado from a dealership 5 months ago. Almost immediately after purchasing the truck, I would hear and feel an intermittent pop that originated from near the floor of the front passenger side. The sound became more frequent and would happen mostly when making sharp turns but also when making softer turns. I took it to the dealership to investigate. They had it for a week and supposedly examined the entire vehicle. They were able to replicate the pop sound when driving it but were unable to diagnose the problem. They claimed that sometimes trucks just make noise and assured me that the vehicle was safe to drive. I asked how they knew it was safe if they didn't know what the problem was and how was I to know that whatever is causing the sound isn't causing internal damage. The service manager again assured me that the certified mechanics looked at every detail of the vehicle and found nothing to be concerned about and sent me on my way. After taking the truck home, I continued normal use of the truck, taking it on 3 long distance trips on the highway. The sound continued as it had before, occurring intermittently when turning. 2 days ago, I was backing out of my driveway. I heard a very loud pop and got out of the vehicle to find that the front passenger wheel had completely broken at the ball joint of the control arm and was lying nearly flat on the ground, held suspended by the brake line and CV boot and other attached components. The truck was towed to the dealership, where it currently is. The service manager told me that the mechanics did everything that they were supposed to have done and that unfortunately this is a mechanical part that can fail and that he has seen this issue in 7-8 other vehicles like mine. If this is a common problem, there should have been a red flag when presented with this issue. If this would have occurred on the highway at a high rate of speed, my family and I could have been killed.

A couple of days ago, noticed some coolant under my truck. Took it to a dealer who informed me that the radiator has a crack in it. The truck has just over 53,000 miles on it and the warranty doesn't cover the radiator after 36,000 miles. We keep it serviced as normal and there hasn't been any extreme weather here in Oklahoma lately to explain the this away. Just irritating to pay the kind of money you pay for something that has this kind of issue already.

Several times mi wife and I have been close to provoking an accident due to the driver seat not been able to go up for my wife to see well over the dash nor will it go down for me to see the gages well. My wife has been stretching to look over creating neck and back pain and I have lowered my head down taking my eyes out of the road close to provoke accident several times.

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the vehicle hesitated while depressing the accelerator pedal. The check engine warning light was illuminated. In addition, an abnormal grinding sound was coming from the engine. The contact stated that the vehicle surged forward after experiencing hesitation. The vehicle was taken to a dealer where the valve body was replaced; however, the failure worsened upon retrieving the vehicle. The dealer was notified of the failure and informed the contact of Technical Service Bulletin: 20-NA-187. The dealer stated that there was no repair for the bulletin. The manufacturer was also notified of the failure and the contact was provided a case number. The vehicle was not repaired. The failure mileage was approximately 30,000.

1. Trucks start/stop delays. When in traffic or crossing over lanes the truck fails to turn back on/start. When the truck does turn back on, the truck jumped forward almost sending me and my family into on coming traffic. 2. When trying to start the truck the starter will turn over constantly not turning on the truck (motor is turning over). The starter will time out after about 20+ seconds. The starter does this when auto start/stop is activated, so we get stuck in traffic almost causing accidents.