The Engine Cooler has a know defect that GM has put out service bulletins for. The engine cooler is cracking, mixing oil and antifreeze that is creating a sludge that runs thru the entire system. GM wants techs to attempt to clean/flush the engine before they approve a new engine to be ordered under warranty. GM is aware of the problem and there should be a recall out on the problem according to the service manager I spoke with at the dealership my truck is at currently. I was told the expected time frame is up to 3 months for the work to be completed, with no loaner available that is equivalent to the vehicle that went to the shop. The recall is necessary because if the engine has a major failure while driving it could cause an accident, if the vehicle is hauling a heavy trailer that could be detrimental because the truck can haul up to 40,000 GCWR.

Source: NHTSA complaint ODI #11762702 · view all complaints for this vehicle at nhtsa.gov

The infotainment/control module in my 2024 Silverado 3500HD failed unexpectedly while I was traveling cross-country. The module is available for inspection upon request. Prior to the failure, I did not receive any warning lamps or messages. When the system failed, I lost access to multiple camera systems integrated into the vehicle, including backup and visibility-assistance cameras used to aid lane changes, parking, maneuvering, and identifying obstacles around the truck. Due to the size and height of this vehicle, these cameras provide important visibility of areas that are difficult to observe directly, including pedestrians, cyclists, and children who may be below the driver's line of sight. The loss of these camera systems reduced situational awareness and increased the risk of a collision while backing, changing lanes, or operating the vehicle in crowded areas. The failure also disabled navigation, hands-free functions, audio, WiFi connectivity, and access to vehicle settings controlled through the infotainment system. The vehicle was inspected by a Chevrolet dealer in Cape Cod, Massachusetts. The dealer attempted a software reflash to correct the issue; however, the procedure rendered the unit completely inoperable. The dealer confirmed that the module required replacement and quoted an estimated repair cost of approximately $1,500. The required replacement part was unavailable, and despite contacting numerous Chevrolet dealerships, I was unable to obtain a repair during my trip. As a result, I was required to continue operating the vehicle while towing a large trailer for an extended period without the camera systems and related functionality. I have also become aware of GM Service Bulletin PIC6630B, which indicates that GM has identified this failure mode and that it is not an isolated occurrence. Given that a single module failure can disable multiple safety features, I request that it be evaluated by an independent authority accordingly.

Source: NHTSA complaint ODI #11756996 · view all complaints for this vehicle at nhtsa.gov

moved the truck on to the lawn and put it in park turned truck off. got out of the truck and went into the garage and 5 min later came out and saw the truck started to roll and went 50 ft and hit a tree.

Source: NHTSA complaint ODI #11748695 · view all complaints for this vehicle at nhtsa.gov

I keep getting a chunking noise coming from the rear of vehicle. Twice I have taking in to the dealer and I was told this condition may be caused by movement between the anchor plate and axle assembly. They have re-torqueing the joints of the leaf springs assembly. it coming loose. It has happened after 4,000 miles. This tells me that it can come loose while I am driving! GM has a service document ID: 5501065. It has been happening since 2020!

Source: NHTSA complaint ODI #11675019 · view all complaints for this vehicle at nhtsa.gov

The tailgate spontaneously unlatches without operator input while driving or parked. The dealer thinks it is caused by moisture in the latch gate switch. The tailgate has spontaneously unlatched on several occasions while pulling a trailer without the driver/operator being aware this has occurred. Then when making a turn the tailgate wedges into the trailer jack and makes the tailgate inoperable. The bodyshop quote to repair the tailgate is: 2,275.92 Dinsdale Chevrolet dealer says there is not a recall and has declined to pay for repairs. Contact was made with GM Customer Service, "Reggie" on 10/23/2024 at 11:46, 866.636.2273 He noted, as there has not been a recall, they are not responsible for the issue. Respectfully, [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Source: NHTSA complaint ODI #11622062 · view all complaints for this vehicle at nhtsa.gov

No Owners Manual came with my Truck. I was made aware of Safety Recall 25V815 (Manufacturer Recall N252532020) which addressed 2025-2026 cars and trucks. Currently my 2024 is not included. I can confirm my dealer did not receive any owners manuals for most cars and trucks in 2024. I notified Chevrolet Customer Service and they did not assist. They Dealer was unable to assist and would not reimburse me for the Owners Manual I purchased. I am requesting reimbursement for the purchase of an Owners Manual.

Source: NHTSA complaint ODI #11721761 · view all complaints for this vehicle at nhtsa.gov