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.
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.
Truck lost power and shut down without warning while driving in traffic. Happened twice on the way home from church with my family. First time truck shut off as we were turning across a busy intersection. Coasted off on to shoulder of highway. After several attempts truck restarted. It shut off again before reaching home. Has to call a tow truck. Has truck towed to local Chev dealer on New Years Eve. Dealer kept truck three days. Could not find problem. I picked up truck, drove home, truck shut off just before I reached my house. Coasted into driveway. Called dealer. Said bring it back. Waited two hours. Truck started so I drove back to dealership, approximately 15 miles. Truck shut off again without warning on highway in front of dealership. I sounded horn and flashed lights as I coasted across oncoming traffic into dealership parking lot. This was on Wednesday Jan 3rd. Friday afternoon dealer called and said that hey have not been able to isolate problem. Said they know they are losing communication between modules but don-??t know where. The -??fix-?? they claim is to take the cab off the truck and replace entire wiring harness! Cost is $6300. Truck has 48,000 miles on it. All highway and road miles. Can-??t afford $6300 to repair a 2.5 year old truck. I am fortunate that neither me or my family were involved in a crash due to truck shutting off unexpectedly. This is a very dangerous issue.
Transmission lags between 1st & 2nd gear some times as long as 3 seconds making transfer case hit hard. I have had this truck at the dealer 2 are 3 times with this and other matters, the maintenance technician reports he can not reduplicate my grievance, this malfunction occurs more prominently in cold weather in morning on first take off. All so turn signal malfunction at random no particular pattern, Tech. all so unable to reduplicate.
On 6.22.23 at Lake Powell AZ this truck transmission locked up twice and nearly threw the wife and I through the windshield, very traumatic!! Happened towing a boat entering highway, had to pull to a narrow shoulder. Jarred our bodies, seatbelt into shoulder/chest. The engine light came on, had truck towed to Flagstaff Chevrolet. Had it 3 weeks. Drove home to Huntington Beach, CA without issue. Drove fine until 10.21.23 when engine light came on. Took truck to Delillo Chevrolet on 10.30.23 where purchased, they diagnosed, said Flagstaff Chevy did not program trans. computer correctly, programmed and said it was good to go. Picked up truck on 10.30.23, drove about 50 miles 11.2.23 to work and back, that night went to drive and the engine light was back on. I turned off an hour later. I drove it the next day no engine light, leaving physical therapy for my recent shoulder replacement, going 40 mph when it did the same thing it did in June! It jolted me two times nearly hitting my head on the steering wheel. The transmission shifted to 1st gear, certainly red-lining the engine. I drove the truck slowly to Delillo, just a few miles away. I told the service manager I can never drive this truck again, it is unsafe, traumatizing waiting for this to happen again. I would never put my family in this truck again. It has caused me physical and emotional trauma. The vehicle is unsafe, the jolts caused my new shoulder to hurt. It is devastating to think what would happen if I was at freeway speeds. Others need to know about this issue as well. Thank you so much for your time and what you do to ensure the safety of vehicles on the road.
- Huntington Beach, CA, USA
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The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at various speeds, the vehicle would hesitate while attempting to accelerate. The contact stated that vehicle revved abnormally and failed to immediately respond. The contact stated that the hesitation also occurred while accelerating from a stationary start. The contact also had observed that there was a leak of fluid whenever the vehicle was parked in the driveway. The contact stated no warning light was illuminated. The contact had taken the vehicle to a local dealer, where it was diagnosed and determined that the transmission was leaking and that the transmission and torque converter needed to be replaced. The vehicle had not been repaired. The manufacturer had been informed of the failure. The failure mileage was approximately 16,000.
The truck lunges sometimes, and will jerk shifting, also at variable speeds the truck will feel like it is "riding over rumble strips at a low speed" at variable speeds 30 MPH to 70 MPH. It makes for an unsafe feeling having the vehicle lunge unexpectedly, and the shuddering on the highway causes alarming panic, and reaction, and a feeling of delayed response from the accelerator. Yes, everyone says it is a known GM issue, but nothing will be done, unless I contact a lawyer. No No warnings, or lamps of any kind.
It-??s been going on for some time and have taken it to the dealership for request but with no help. The transmission keeps shuttering bucking between gears this is sometimes violent but seems to be becoming more frequent. This is mostly between speeds of 50-60mph
The transfer case has locked up several times causing me to wreck once. The engine misfires and does not give the MPG advertised. The life of my family has been put at risk with little to no care from the dealer after several attempts for service.
My safety system service warning comes on for about 30 seconds and then goes back off. This has happened about 4 times now. The transmission causes my truck to shake randomly. My pulley is going out and the local dealer said they wouldn't replace is under warranty(even though my warranty was still is effect) because they said it looked like someone sprayed tire cleaner under the hood(I bought it from the same dealership that I took it to for this service.) The brake seem to shake already when coming to a stop. They seem as if they are wearing prematurely.
While vehicle is in 4-wheel drive or 4 auto or 4 L. It makes a grinding whining noise! I have contacted the dealer Newberry motors of Newberry MI 49868. I asked them about a service bulletin I saw on the noises I am hearing, and I was told service bulletins are only assigned to a vin number and not groups of vehicles. which is a lie!!! SO THE GRINDING NOISE IS BAD WHEN IN 4 WHEEL DRIVE. PERIOD. DOES NOT MAKE THE NOISE WHILE IN 2 WHEEL DRIVE. THANKS FOR ANY HELP THAT CAN BE PROVIDED!
Power hesitation, along with loud knocking sounds coming from the engine. Cause truck to completely shut off while driving 35mph. No warning lights or anything came on until complete failure
I was not personally at risk during my incident, but I can see how I could have been if my situation was a different. My 2021Chevy truck suddenly lost engine power at a traffic stoplight. It almost stalled coming to a stop. Then when trying to accelerate, it had very low power, and was stumbling. I was only a mile from home, and not busy traffic, so I managed to make it home. Driving very slowly with the engine clearly under very low power. No CEL or warning lights came on. After getting it towed to the dealer the next day, the dealer informed me it was a failed lifter and bent pushrod. After a little google searching, I found it is a common failure in newer GM V8s. I also learned my truck was built in a date window that GM issued a Service bulletin for lifter failures. According to forums and Facebook pages, Many other owners have had the same problem. Even 2-3 time failures with some owners. Even after repairs. Either in the date range of the bulletin or outside of it. My specific situation wasn't dangerous, but I could see how it could be, if I were on a busy highway, or if the truck completely lost power. As far as I see, no Recall has been issued, just many internal service bulletins over several years. And even a class action lawsuit in regards to lifter failure. My truck was fixed with all lifters replaced with an updated part number. 5000 miles since the repair. Gm did a good job with the repair, and after some communication with GM customer service, they replaced all the lifters, and not just the broken one. This gave me a bit more peace of mind, but I worry with so many failures posted online daily, and without a documented case on NHTSA this will continue. Thanks
I was on interstate 85 and the whole truck started shaking and check engine light, service ESC light and service parking brake light came on. Thankfully I was near and exit ramp and got off as I had almost no power. I limped my truck back to the dealership where they diagnosed it as lifter failure and replaced both banks of lifters. This is a known problem with General Motors and is simply a matter of time before a terrible accident occurs.
My pick up was hit from the rear the drive shaft broke at the well and the rear broke both side of the axle to the housing of the rear I have pick of the rear and the drive shaft.
At 7,316 miles my 2021 Silverado 5.3 V8 had lifter failure while driving, the truck would not accelerate correctly and I was forced to pull off the road, luckily it was able to turn off at the next road before the vehicles behind me caught up. The check engine light was blinking and was making a lot of popping noises. I was able to take back roads and drop it off at the dealership for repairs.
Vehicle began having issues at 3 months old... Random service messages, defective headlight, wierd engine noises at startup and stalling upon acceleration/deceleration. I took it to the dealer several times about the issues I were having but they always say they aren't able to replicate any issues. 3 months later I was driving on the highway and the engine started knocking. Had it towed to the dealer and it took them 6 months to replace engine, tcm, starter, and other parts. After finally getting the truck back, it was still stalling and there was a check engine light... Dealer did not reassemble the vehicle properly and several parts and bolts were still missing. It went right back in the shop and catalytic converters were replaced. I also mentioned missing parts and bolts. I get the truck back again and it still seems like it wants to stall. I was turning into a parking lot a few days later and it seemed like it wanted to cut off. While I was distracted trying to see if the truck cut off, I hit a small pole... Truck was damaged way more than it should have been because the dealer did not reassemble it properly. Body shop said my bumper was only held on by 2 bolts and several other bolts and pieces were missing. They said if my bumper was attached properly the damage would not have been as bad. The vehicle was already unsafe because of stalling and the dealer made it structurally unsafe as well... I have opened cases with gm and they aren't doing anything about it. Here this truck is 14 months old and it's been in their possession more than mine... I have asked them about replacing the vehicle and they insist on fixing the issues but never do and I end up driving an u safe vehicle around.
A D V E R T I S E M E N T S
- Philadelphia, MO, USA