2023 Chevrolet Tahoe power train problems

“While traveling on I-684 at highway speed, my 2023 Chevrolet Tahoe with 43,000 miles suddenly shut off without warning and automatically shifted into neutral. I had a complete loss of propulsion. As a car guy who has been following the GM 6.2L engine recall issue, I suspected it could be that. I was traveling in the left lane and had to carefully coast across active lanes of traffic to reach the shoulder. My wife and two young children were in the vehicle, and the sudden loss of propulsion created a significant risk of collision. There were no warning illuminations, messages, or other symptoms that I observed prior to the failure. The vehicle was subsequently towed to my Chevrolet dealer for diagnosis and is available for inspection upon request. As confirmed by the dealer, the engine completely seized causing the loss of propulsion. I will also share, about 1 year ago after the GM recall was issued, I took my truck back to the dealer. They cleared the engine for the propulsion issue, changed the oil for 0W40 and changed the oil fill cap in line with GM recall standards.”

“* Lifter bores and camshaft. yes * The vehicle started to shake and started sending out alerts for multiple problems while we were driving on the interstate * Yes. Bale Chevrolet estimated approx. $10,000 repair bill * No. It's currently at the dealership * As the car began to shake we started receiving numerous warnings, but not prior to the shaking.”

“[XXX] Diagnose on XXXX vehicle shudder dealer stated felt some tire vibration. Back to the dealer in August same issue. Tahoe shudder and misfiring first seen by [XXX] chevy of [XXX] on XXX stated it the DFM and its very pronounced. There is no correction that can be made to change this shudder. XXX service transmission, not able to shift soon warning light came on while driving down the road multiple times. Dealership stated caused by low voltage charged battery and sent me on my way. went back and GM had them to check battery over again and again and they finally replaced my battery. XXX back in the shop at Bentley Chevrolet Florence AL. kept 2 weeks. Stated shudder is a normal operation from the GM tech. also received a misfire code as it clearly is missing while at idle it almost acts as if its going to go dead at a red light. tach case # XXXBentley tech stated that GM reviewed data their response was this is a normal operating condition. This vehicle has only 23,000 miles its a 2023 Tahoe z71 and still under the powertrain warranty, but they refuse to fix the misfire acting like its going to go dead at a red light.”

“I am filing this safety complaint regarding the sudden and unexpected transmission failure of my 2023 Chevrolet Tahoe at approximately 110,000 miles. My transmission failed without any warning, creating a serious and frightening safety concern. There was no advance indication that I was about to experience a major mechanical failure. A transmission failing unexpectedly creates the potential for an extremely dangerous situation, particularly when traveling at highway speeds, navigating intersections or driving in heavy traffic. I purchased this vehicle brand new and have consistently had it serviced at Bergstrom Chevrolet of Madison. My maintenance history includes approximately 20 dealership visits between January 2023 and July 2026. Despite this extensive service history, the transmission failed less than four years after I purchased the vehicle. I am extremely concerned that such a critical component could fail without warning. An unexpected transmission failure can put the driver, passengers and surrounding motorists at risk, particularly if the vehicle suddenly loses its ability to accelerate or maintain speed. The Chevrolet dealership diagnosed the…”

“I am writing to express my disappointment with how the L87 engine recall was handled on my 2023 Chevrolet Tahoe. I purchased this vehicle for approximately $82,000 and brought it to Kunes Chevrolet in Lake Geneva multiple times for scheduled maintenance. During my first visit after learning of the recall involving potential connecting rod and crankshaft defects, I specifically asked when my vehicle would be inspected and repaired. I was repeatedly told that I would receive additional information in the mail and that I would be contacted when repairs became available. Over the course of several oil change visits, I continued to ask about the recall. Each time, I received essentially the same response. During my most recent visit, I was informed that when the recall procedure became available, the dealership would listen to the engine with a stethoscope and then determine whether the vehicle required repairs or only a switch to a heavier oil viscosity. As a customer who invested $82,000 in a full-size SUV, I found that response extremely disappointing. The recall concerns involve engine components that could potentially lead to catastrophic engine failure. Being…”

“I have a 2023 Chevy Tahoe with 45k miles. Today driving two kids home from our football practice I was driving along at around 40mph and all of a sudden the transmission downshifted and almost locked the rear tires up. If it was winter, wet, or cool, there is no doubt that the tires would have locked up. Check engine light came on, and now the vehicle wont move in reverse and at around 45-50 mph the engine is running at 3,000 rpms. I volunteer to be a youth football coach and always have a car full of children. This isn't normal or safe. P.s. I should've bought the Ford Expedition.”