I am filing a formal complaint regarding a serious safety concern with my 2021 CHEVROLET SILVERADO, following the completion of recall N252494001 performed by Galleria Chevrolet in Dallas, TX. Prior to this recall work and related inspections, my vehicle operated without any abnormal engine noise. After the recall inspection and a subsequent fuel injector repair performed by the dealer, my vehicle began producing a bottom-end engine noise that had never been present before, and ultimately we have catastrophic engine failure. What is highly concerning is that the dealership staff previously documented the situation in writing as follows: -??We performed the recall inspection and the truck passed. After performing an injector repair now there is a bottom-end noise when it's running. Did the failed injector possibly affect the validity of the test" That may be the case. We know that the truck did not experience the noise before the inspection; is it possible that the steps we took affected the truck in a way that got the noise to show itself" That-??s what we need to determine.-?? Despite this acknowledgment, the dealership is now denying any responsibility, classifying the damage as unrelated -??wear and tear-??. This reversal appears highly suspicious, as it contradicts their own observations and written notes. It suggests that the dealership and GM may be refusing to fulfill their obligations under the recall and repair warranty, leaving me with a vehicle that has a blown engine and a significant safety risk. Given the timing of the noise, occurring directly after recall work and injector repair, and the internal documentation from the dealership itself, I request NHTSA investigate whether: This issue is part of a broader trend affecting other vehicles under the same recall. GM and its dealers are properly honoring their obligations to fully repair vehicles impacted by recalls. Consequential damage resulting from recall work is being systematically denied coverage.

- Arlington, TX, USA

A knocking noise coming from the left side drivers wheel

- Harrisburg , NC, USA

I purchased this truck 3/20/2025. I have since realized it wasn't me doing something wrong. The truck hesitates and shakes during shifting upon acceleration from a stop and when putting it in park and attempting to turn the truck off it has a message on the display saying "shift to park" and it will not turn off until you repeatedly restart it and play woth the gear shift to get it to register that it's in park. I have made an appointment to take it to the dealership to be looked at. The truck has 75,000 miles on it.

- Wallisville, TX, USA

Around May 20th, 2022, I was driving the pickup when it suddenly the engine turned off on me. I was travelling at approximately 40 mph on city streets and was able to control the vehicle and park the vehicle and restart it. That same week, I took the vehicle to Chevrolet on the city of Orange, where it was inspected. According to the mechanic, no issues were located. Nothing else was done to the vehicle and as a result, I fear the same issue will happen again in the future.

- Corona, CA, USA

while driving, the emergency brake engages and locks the car up coming to a complete stop mid driving (on highway!). this has happened 3 times now, took it into dealer, they did a computer update and released. It has since happened again, with my child in the car!

- Flemington, NJ, USA

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.

- Longview, TX, USA

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.

- Meridianville, AL, USA

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.

- Charlotte , NC, USA

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.

- Sunbright, TN, USA

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.

- West Sacramento , CA, USA

Paint chipping and cracking not even five years old yet

- Houston, TX, USA

I had my windshield replaced and the installer said when he removed the old glass, the bottom of the glass didn't have the rubber strip accross the bottom. Our rear sliding window has had a small leak, so we asked him to check it out too. He noticed that the window also does not have the rubber weather seal.

- Moore , OK, USA

Baton Rouge Louisiana

- Batonrouge, LA, USA

Baton Rouge Louisiana

- Batonrouge, LA, USA

The tumbler in keyed switch is locked up solid. Cannot turn key to start or turn on.

- Axtell , NE, USA

The car while I-??m driving, when I start driving it has a kick could be transmission

- Fort Washington , MD, USA

Since the purchase of this truck I have been having the same issues consistent with the current recall. It has gotten worse and has almost caused an accident during acceleration due to skipping or locking up of the engine/wheels. Worse when traction control is on. This Happens almost every time the gears shift during acceleration.

- Tallahassee, FL, USA

There is a water leak from the rear roof leaking causing water to come inside by the rear window down the rear pillar by the airbag. May cause problems with the rear side airbag and mold. Dealer charged me a $273 diagnostics charge and will not repair under warranty or extended warranty even though there is a TSB on this affecting numerous other trucks

- Staten Island, NY, USA

I brought in vehicle for check engine light is on for p0300 / p0308 had misfire tech removed engine valve cover and determine no movement in valve train components tech determine valve train failure lifters possible camshaft we would need to remove the cylinder head and replace valve train lifters.

- Orangevale, CA, USA

I have just been made aware that there is a lot going on right now with the l87 6.2 motor. I purchased my truck last September so I e had it almost a year 1/2. I recently started having what seems like a misfire issue as of 1/20/2025. I have it scheduled to be checked out Friday 1/24/2025. I-??m just reporting this to cover my back if any recall or anything comes about. In addition I-??ve had regular oil changes and maintenance on the truck. It-??s currently inspected and insured.

- Lancaster, PA, USA