Chevrolet Silverado Complaints (2021)

989 consumer complaints on file.

#11654563April 14, 2025
ENGINE
6.2 engine failure second motor put in last week dealer took for test drive truck was towed back for second engine failure
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11654229April 12, 2025
UNKNOWN OR OTHER
I get A shift to park message on my dash behind steering wheel whenever I put the vehicle in park and turn it off. It want let the vehicle completely shutdown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11654045April 11, 2025
POWER TRAIN
The transmission either shifts hard or momentarily locks up when downshifting and then shifting back up into high at 50+ mph. Check engine light comes on, tow haul mode is not available, engine rpm's increase dramatically. Transmission will begin shifting normally after a engine stop, but check engine light stays on, and tow haul mode is not available. Cycle continues. The hard shift before the check engine light comes on and transmission upper gears are locked out is very unnerving, especially with a travel trailer behind you at 65 mph. I no longer fell safe driving the vehicle. I am requesting assistance from the dealership on this truck with less than 49000 miles. The "flash for the transmission" recall was done several thousand miles ago. It only masks the situation. This is not acceptable, nor safe.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11653956April 10, 2025
POWER TRAIN
The contact owns a 2021 Chevrolet Silverado 2500. The contact stated that upon reaching his destination and shifting the vehicle into park, the vehicle failed to recognize that the gear shift lever had been moved to park (P). The contact stated that the "Please Shift to Park" message was displayed and the doors were unable to be locked. The vehicle returned to normal functionality, but the failure became a regular occurrence. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was 25,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11653423April 8, 2025
ENGINE
I purchased this vehicle brand new is 2021 with the 6.2 liter engine. I have had all the regular maintenance performed as scheduled with 90% being done at a Chevrolet dealership. My truck has around 90,000 miles on it and now the engine is out. It started with showing low oil at 50% oil life left. When I took it to have it checked, it was 3 quarts low on oil. I did another oil change and was told I had to start an oil consumption test in order for them to review the issue. I had it checked every 1000 miles. The first and second check was fine. The third check was one quart low. They took it in and found that the spark plugs were oil fowled. Upon further investigation, they found that the cylinder walls were scored and had oil bypass in the cylinders. I have done everything right with this truck. Took care of it in all the ways I was supposed to. There is no reason what so ever for the engine to have gone out at 90,000 miles. There has to be more to this. I have looked it up and other people are having the same issue with the same engine. Why is nothing being done about this?
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11653548April 8, 2025
VISIBILITY/WIPER, UNKNOWN OR OTHER, EXTERIOR LIGHTING
Rain is coming in through the back window. Dealer is stating that the rain is coming from the sliding window but satellite is stating it’s the brake light on the top of the truck.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11653145April 7, 2025
POWER TRAIN, UNKNOWN OR OTHER
Transmission isssues hard shifting and no shifting at times. I informed the dealership about the recall on this issue and they are saying it doesn’t fall under the recall which isn’t true because my vehicles is showing all of the symptoms under the recall #N242454440.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11653055April 6, 2025
ENGINE
Had the check engine and recieved code p0303 cylinder 3 misfires i replaced fuel injectors on that side spark plugs ,wires ,spark plug solenoid,and still had the check engine p030 and would not run right my mechanic had to take the head off and replace all the valves of the motor costing me more than $5,000 i am so embarrass cause i was so honored to buy this silverado,but at 60,000miles this should nit happen why am i throwing alot of money to this truck gm you guys are letting me down i always by gm but at this point i dont know can you make this right,and no i dont want a 10 percent discount in a new one that a slap on my face .
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652731April 4, 2025
ENGINE, ENGINE AND ENGINE COOLING
The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the vehicle was making an abnormal knocking sound while driving at various speeds and while idling. There was no warning light illuminated. The vehicle was taken to the dealer, where the engine lifters were replaced; however, the failure persisted. The vehicle was taken back to the dealer, where the contact was informed that the engine abnormal knocking sound was not sufficiently loud to issue a recall. The vehicle was not repaired. The contact related the failure to NHTSA Action Number: PE25001 (Engine, Engine and Engine Cooling). The manufacturer was not notified of the failure. The failure mileage was approximately 11,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652897April 4, 2025
ELECTRICAL SYSTEM
The tailgate on our truck keeps automatically coming down and up on its own. It doesn’t matter if the truck is in park or drive. It doesn’t matter if it’s locked or unlocked. It will do it several times in a row. It will go half way back up and then just slam down. Unfortunately we didn’t know this was an issue as we just bought the truck a few days before we noticed it happening and it fell down and hit something in our garage causing a dent and multiple scratches as it happened overnight without us being aware of the issue. It happens when I’m going down the road, which means I cannot use the bed of my truck as things could fall out. Also, I’m limited on where I can park it. We called GM and a dealership and there’s nothing they can do since it’s not recalled unless we pay to have it fixed. So now we have a new to us truck that’s now dented because of this issue. There is no warning it’s going to happen. After the tailgate comes down I get a notification saying tailgate down when I’m driving. This happens everyday, several times a day and we’re having to avoid driving it when possible due to this issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652715April 4, 2025
ELECTRICAL SYSTEM
RECEIVING SERVICE TRAILER BRAKE SYSTEM. SEEMS THIS IS A KNOWN ISSUE WITH TRUCK AND SHOULD BE A RECALL THAT GM FIX AND NOT PUT ONTO CUSTOMER
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652548April 3, 2025
LATCHES/LOCKS/LINKAGES
The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while stopped, there was an abnormal sound coming from the vehicle. The contact stated that the rear tailgate had opened independently. There were no warning lights illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 56,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652693April 3, 2025
UNKNOWN OR OTHER
When I am driving my vehicle and I pull in to park, I put the gear shift into park and shut the vehichle off and a light comes on in the dash and says shift to park. And the vehichle will not shut down for several minutes after this light comes on. It also feels like there is a hesitation in the transmission at times after I start the vehicle and start driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652250April 2, 2025
ENGINE AND ENGINE COOLING, ELECTRONIC STABILITY CONTROL (ESC), PARKING BRAKE
The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 50 MPH, the engine started rumbling with the check engine, stability-trac, and the parking brake warning lights illuminated. The vehicle was taken to an independent mechanic who diagnosed a misfire in cylinder #1. The mechanic referred the contact to the dealer for assistance. The vehicle was taken to the dealer, who diagnosed that the lift valve had collapsed, and the right side of the block lifters needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact to the dealer for assistance. The failure mileage was 80,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652420April 2, 2025
POWER TRAIN
Transmission issues, rough shifting, hesitation and shuddering.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652047April 1, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2021 Chevrolet Silverado 1500. The contact stated upon shifting into reverse(R), the vehicle shut off. The contact stated upon shifting to park(P) to restart the vehicle, the vehicle was able to restart after pressing the Push to Start button several times, and the vehicle made abnormally loud cranking, banging, and rattling sounds. The contact stated that he was an independent mechanic and had determined that the engine was blown, despite the outstanding maintenance record on the vehicle. The vehicle was towed to the dealer, where it was diagnosed that the engine had failed due to lifters failure. The dealer determined that the engine needed to be rebuilt or replaced. The dealer informed the contact that the engine might be replaced because the parts needed for the rebuilding of the engine were on backorder. The dealer informed the contact that the engine oil would be tested. The dealer also informed the contact that a claim was filed with the manufacturer for the repair to be covered under warranty, and the dealer was awaiting a response from the manufacturer. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 27,820.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652107April 1, 2025
ENGINE
What component or system failed or malfunctioned, and is it available for inspection upon request? The component that failed is the lifter in my 2021 GM truck, which caused severe engine damage. The vehicle is currently at the dealership and is available for inspection upon request. How was your safety or the safety of others put at risk? My safety and the safety of my child were significantly put at risk when the engine failure occurred on the freeway while traveling at 65 miles per hour. Multiple warning lights illuminated on the dashboard, and the truck became hard to control. I was fortunate to maneuver the vehicle safely out of traffic without harm, but the sudden loss of engine power could have led to a serious accident. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the problem has been confirmed by the dealership, which conducted diagnostics and determined that the lifter malfunction caused severe engine damage, necessitating a full engine replacement. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle has been inspected by the dealership, which is an authorized service center for GM. However, it has not been inspected by the manufacturer directly, police, or insurance representatives. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? There were no warning lights, messages, or any other symptoms prior to the failure. The vehicle was driving normally when, all of a sudden, it began to shake and slow down,
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11651802March 31, 2025
LATCHES/LOCKS/LINKAGES
The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the rear tailgate opened unexpectedly and without warning. The dealer and the manufacturer were made aware of the failure, and informed the contact that the vehicle was not included in NHTSA Campaign Number: 24V060000 (Latches/Locks/Linkages). The vehicle was not repaired. The failure mileage was approximately 48,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11651543March 30, 2025
ENGINE, UNKNOWN OR OTHER
Diesel engine continues to overheat, even after the oil temperature sensor failure dealership repair. Truck is very well maintained. However, common and trending issue amongst 1500 Silverado diesel owners is overheating which causes engine to loose power while driving and even get so hot it can catch fire. Warning lights appear only when problem is at engine failure point. Also, we lost power or reduced power on freeway which almost caused an accident and engine was smoking. We had it towed to Epic Chevrolet in Sacramento, CA. Within one week of dealership repair covered under powertrain warranty, dealership said overheating engine is due to a “new” code for coolant pump. In short, fire and driving safety hazard that can cost lives if not addressed by NHTSA.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11651576March 30, 2025
WHEELS, POWER TRAIN
Transmission sometimes does not change out correctly, when I show down it shifts really hard, and and now the rear wheels are locking up which increase the likelihood of an accident
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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