2024 Chevrolet Suburban

Persistent, intermittent total audio cutout disabling critical crash avoidance alerts. Failure Summary & Safety Impact: The vehicle experiences intermittent, complete failures of the audio system across all sources. When this failure occurs, all audible safety warning chimes are completely silenced—including Forward Collision Alert, Front Pedestrian Braking, Lane Departure Warning, and Park Assist. This places occupants and other road users at immediate safety risk, as the driver receives no audible warning prior to an impending crash or hazard. Diagnostics & History: The issue first was brought to an authorized Chevrolet dealership for inspection and repair multiple times (first on April 29, 2026) and has not been remedied. They even replaced the radio system (through which all audio is routed) and this did not fix the issue. The vehicle remains in its original condition and is available for inspection upon request. There were no dashboard warning lamps or error messages displayed prior to or during the failure.

Driving our 2024 Suburban, 6.2 L engine, on a 2-lane highway in southern Utah, traveling on cruise control at 70 mph, felt 2 hesitations (jerking movement), and turned off cruise control. Immediately after, heard knocking/thumping sound in the front of the vehicle, followed by a whining sound that got louder. Immediately found a turn-off from the highway, pulled in, and engine died while vehicle was still in motion. Attempted starting again and would not start. People stopped to help us and tried to jump vehicle without success. Suburban was towed to a Chevy dealership and we were told the Suburban's engine seized. In researching this issue, we came across NHTSA's investigation case EA26005. Our VIN does not fall in to this recall.

Radiator was cracked and leaking at 42,000 miles. GM is well aware of the known failure, but has failed to issue a recall

Subject: Formal Safety Complaint—Cracked 22-Inch Polished Aluminum Wheels on 2024 Chevrolet Suburban To Whom It May Concern: I am submitting a formal complaint concerning repeated failures of the original 22-inch polished aluminum wheels installed on my 2024 Chevrolet Suburban, which I purchased new. Two wheels have cracked without any known impact, collision, road-hazard event, or other incident that would reasonably explain the damage. The first wheel cracked at approximately 25,000 miles. Tire pressure began dropping unexpectedly and ultimately fell to zero. The wheel was inspected and replaced by a dealership in Cincinnati. A second wheel later cracked and caused another sudden loss of tire pressure without warning. During that incident, I experienced difficulty maintaining steering control, creating a serious risk of a crash and injury. The second wheel was inspected and replaced by Tire Discounters in Lebanon, Ohio. The recurrence of substantially similar failures raises concern that the wheels may contain a material, manufacturing, or design defect. Aluminum wheels should not crack during normal operation in the absence of impact damage. A sudden loss of tire pressure, especially while the vehicle is moving, presents an unacceptable safety risk to the vehicle’s occupants and other road users. I respectfully request that Chevrolet and General Motors promptly: 1. Investigate these wheel failures as a potential safety-related defect; 2. Arrange for a thorough inspection of all remaining wheels on the vehicle; 3. Replace any affected wheels at no cost to me and review reimbursement for related expenses already incurred; 4. Confirm whether similar complaints, technical service bulletins, special coverage programs, or recalls have been identified; and 5. Provide a written response explaining the findings and proposed corrective action. I can provide the vehicle identification number, purchase documentation, mileage records, photographs, inspection findings, r

While driving down a two-lane blacktop road at 70 MPH (the posted speed limit) the engine, a 6.2 L L87 with a little over 15,000 miles, grenaded and seized. At the time I recall a warning message that said something like "engine shutdown". Fortunately the electronic transmission self-shifted into neutral so the car could coast to a stop. Had it not done this a loss of control would have been likely at this speed. The vehicle was towed to the local Chevrolet dealer in Bozeman, Montana (Resseler Chevrolet) where it was confirmed the next day the engine had seized. The dealer is currently replacing the seized engine with a replacement long block. The dealership currently has the engine and is planning to ship it back to Chevrolet or GM for tear down and inspection. They are also replacing the radiator and all coolant hoses as a precaution. Two weeks prior I took the vehicle to the same Chevrolet dealer complaining that on one day the engine shut off four times within 1 mile. Each time it displayed a warning message that said "restart engine", which it did each time. I also complained about a ticking noise that began in the engine at 12,000 mile. The dealer reported that the engine sounded fine and that they could not reproduce the engine shutting off on its own. This engine was NOT part of the large L87 recall. At time of purchase I was told by the selling dealer (Kendall Chevrolet in Maryville, Washington) and the local dealer (Resseler) that the engine was assembled after assembly line procedure were put in place to avoid the same issues as the recall engine. I've been and engineer for 46 years. The problem with this engine is not the assembly line, it is the never before used tight moving component tolerances and the water thin oil demanded by the manufacturer. The design shortcomings are compounded by systems such as cylinder deactivation and auto stop that significantly acceleration engine component wear.

Vehicle brought to Chevrolet dealer for recall# N252494000 at 27,626 miles. Vehicle passed inspection and oil replaced per recall. Despite engine passing and recall complete the engine failed at 29,861 miles requiring an engine replacement which was provided under warranty. The failed engine was taken by GM.

This an addendum to my original submission. Took my 2024 Chevy Suburban the the dealership XXX, my engine making unusual noises. Due to the severity of the sounds vehicle was towed to dealership in [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Initial indicators lead to engine failure as a result of defective part internal to the engine.

Transmission faulty, loud, clunky and hard shifting! Service transmission now alert and code P0747

The contact owns a 2024 Chevrolet Suburban. The contact stated that while driving at approximately 30 MPH, the steering wheel locked at an angle, and the message "Power Steering Not Active" was displayed, causing the vehicle to strike a curb. The steering column, control arm, radiator, fender, and wheel were significantly damaged due to the incident. The vehicle was then towed to a dealer, where it was diagnosed that the power steering module had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure, and an investigation was completed. The failure mileage was 58,277.

On May 2, 2026, while the vehicle was in operation, the engine suddenly shut off without warning. At the time of failure, the instrument panel remained illuminated; however, the vehicle would not restart. In an effort to resolve the issue, the battery was replaced, but this did not correct the problem. The vehicle was then towed to a local Chevrolet dealership for further inspection and diagnosis. Following their assessment, I was informed by the dealership’s service department that the engine had seized and that metal debris was present in the engine oil, indicating significant internal engine failure. I was further advised that a replacement engine has been ordered. At no point prior to this incident were there any warning indicators, abnormal noises, or performance issues that would have suggested an impending engine failure. The sudden nature of this incident raises concerns regarding the cause of failure and whether it may be related to a defect or internal mechanical issue.

1. Sunroof 2. Driving on 81 N slightly past the Middlesex exit at highway speeds. My 4 minor children and I heard what sounded like a large balloon popping inside my car. Upon further inspection, my sunroof spontaneously exploded. Absolutely nothing hit our car. The more research I’m doing, this is a known issue with GM manufactures and they have done nothing to correct this issue. 3. I’m working on getting a repair scheduled, once we figure out if it’s under warranty or we have to pay for it through insurance. 4. No warnings

Windshield wipers stopped working

The vehicle would jerk when changing gears and would have a rattle and vibration when accelerating.

The glass of the front movable sun roof shattered. The glass shattered while driving on hwy 89 in Wyoming with no traffic or no identifiable reason for the event. While some glass was saved most of it blew out when is shattered. The problem has not been reproduced or confirmed by the dealer. The dealer blames a flying rock or other object impacting the glass even though no vehicles or source of incident impact was perceived. No one was interested in taking a report. There was a build up of pressure inside the vehicle prior to the blow out of the glass which caused the drivers ear's to pop when the sun roof blew. The remaining glass was visibly pushed upwards away from the vehicle. A picture is available.

The contact owns a 2024 Chevrolet Suburban. The contact stated that while towing a trailer, the message "Trailer Brakes Disconnected" was displayed. Due to the failure, the trailer brakes locked up and the trailer came to an abrupt and rough stop. Upon investigation, the contact discovered Technical Service Bulletin: 23-NA-149; which was related to the solar panel battery charger or generator on the trailer. The trailer battery was fully charged and had a higher charge than the battery needed and could back feed into the trailer brake power module and cause it to shut down. The dealer was notified of the failure, and the contact was informed that the vehicle was not under recall. The manufacturer was also notified of the failure, and the contact was referred to the NHTSA Hotline to file a complaint. The vehicle was not repaired. The failure mileage was approximately 5,000.

Upon stepping on brakes, the car shifts into Neutral and says “press start Button again.” This happened to me 2x now.

Complete and sudden failure of the L87 V8 engine at 70 mph on the highway. Had to maneuver to the right shoulder and coast to a stop. Engine was seized and would not restart. Waited 4 hours on a dangerous highway for a tow truck which took the Chevy Suburban 200 miles to my home Chevrolet dealership. They have ordered a new engine but it is on backorder so no ETA. Vehicle was built 06-26-2024 and has not been recalled so Chevy says I do not get the extended warranty on the replacement engine.

The contact owns a 2024 Chevrolet Suburban. The contact stated that while driving at various speeds, there was an abnormal sound coming from the rear of the vehicle. The sound became significantly louder while driving. The contact stated that while driving at highway speeds and depressing the brake pedal, the vehicle felt like the rear wheels would lock up. The contact stated that the rear wheels locked while reversing, causing the vehicle to jerk abnormally. The vehicle was taken to the dealer, where it was diagnosed with rear axle failure. The dealer determined that the rear axle needed to be replaced. The private warranty company declined to cover the repair unless the rear axle had completely failed. The manufacturer was notified of the failure and declined to cover the repair because the vehicle was no longer under warranty. The contact had previously reported the failure to the dealer, who could not duplicate the failure while the vehicle was still covered under warranty. Additionally, the contact stated that upon engaging the air recirculation, the contact smelled fumes. The vehicle was not repaired. The failure mileage was approximately 23,000.

The contact owns a 2024 Chevrolet Suburban. While driving at an undisclosed speed, the vehicle hesitated while accelerating. The vehicle was previously repaired under NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING); however, the failure persisted. The local dealer was contacted; however, the vehicle was not repaired. The manufacture was not notified of the failure. The failure mileage was 27,300.