2023 Chevrolet Tahoe

AT 60,720 ON CAR MILES ENGINE FAILED. THIS IS THE SECOND ENGINE FAILURE. DEALERSHIP PERFOMRED TEST PER RECALL ON SECOND ENGINE, AND ENGINE FAILED LESS THAN 30,000 MILES LATER. EXPERIENCED LOSS OF POWER FOR A FEW MINUTES BEFORE FAILURE. THE REPLACEMENT ENGINE HAD 52,000 MILES ON IT.

The contact owns a 2023 Chevrolet Tahoe. The contact stated that while driving at 55 MPH, the "No Key Detected" message displayed. The key fob battery was replaced; however, the failure persisted, stranding the contact and child on the road. The contact disconnected and reconnected the vehicle battery to resolve the failure, based on a parent's experience with the identical failure in a 2022 Chevrolet Suburban. Prior to the failure, the front windshield wipers activated independently after starting the vehicle, and the infotainment screen went blank while coming to a stop. The manufacturer was notified of the failure by telephone. The failure mileage was approximately 60,000.

The AFM/DOD system failed and resulted in lifters and rocker arm failure.

On 4/23/25, the check engine light came on and the vehicle reduced power. It was taken to dealership and a warranty service was performed, L87 Engine loss of propulsion. The vehicle was in service for 90 days. On 7/15/26, vehicle shifted itself into neutral while driving on the highway, with 4 kids in the car. This is a safety issue for our family and all around us, as car loses ability to drive at interstate speeds. It would not go back into drive, needed to pull over and get towed to dealership. Dealership diagnosed it needed a new engine and radiator; it was in service for 60 days. On 10/10/26, vehicle shifted itself into neutral while driving with one kid in car while driving on the highway. Vehicle gave the "conditions not correct for shift" and would not go back into drive. Vehicle was shut off and was stalled on the highway, after a time of it being off, vehicle started back up and the check engine light was on. This is a safety issue for our family and all around us, as car loses ability to drive, once again, at interstate speeds.

First occurrence was 2/03/24 check engine light came on felt stumble in engine continued driving to get home set up appt with dealership. They codes P318C and P318F were present numerous things were checked and found excessive crank shaft end play, removed oil pan and found thrust bearing in bottom of pan broken into pieces. GM authorized engine replacement. The vehicle had 4,603 miles on it. Repairs were completed and vehicle picked up 03/12/24 Second occurrence was 05/28/26 while driving at interstate speeds heard squeaking noise then knocking sounds coming from engine was able to make it home and had vehicle towed to dealership the next day. This time no codes but was determined to be defective engine and was replaced again mileage on vehicle this time was 33,521 miles I started using the 0w/40 oil as soon as recall came out actually before I received information in mail I am hearing rods rattling at start up now until oil pressure picks up on the latest engine installed but it still is running at present time.

I was picking my Tahoe up after a replacement on the blown motor was complete. (L87) I started it and immediately knew something was wrong. I reported it to the service advisor and the response was there were no warning lights so it must be fine. I asked them to sit in my car and they agreed it was not running right. They took it back and replaced a sparkplug that was causing the #2 cylinder to misfire. Almost 3 months later I was driving on the freeway when my Tahoe felt like it was going to stall. Again I had no warning lights appear. The diagnostics showed the same #2 cylinder misfiring caused by another sparkplug issue. This is all within 2,500 miles on a brand new engine.

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.

Since the vehicle was new in 2023 we have had constant issues with the park aid cameras. One of the mirrors goes out all the time, the infotainment image flickers pick or is just straight black with a red x and no camera image that you can’t even escape out of to get back to the vehicle controls when your back in drive. I had it to the dealer about 6 months after I bought it and allegedly threw everything at it including the kitchen sink. Worked for awhile and then started again. Had it back to the dealer nov of 25, kept it for 4 months, replaced a camera and it’s been broken since I picked it up intermittently.

* 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. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

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 transmission failure and provided an estimate of approximately $7,500 for replacement. I contacted General Motors to report the failure and request assistance. GM denied my request solely because the vehicle had exceeded its warranty mileage. When I asked whether the decision could be appealed, I was told no appeal was available. My primary concern is the safety implications of this unexpected failure. I believe this incident warrants investigation to determine whether other owners of 2023 Chevrolet Tahoes may be at risk of experiencing similar transmission failures without warning. I am requesting that NHTSA review this incident and determine whether a potential transmission safety defect exists.

My vehicle received a software update which has caused my OnStar (safety) option to malfunction and has stopped working properly. There is an active recall for some vehicles but for some reason my specific year is not listed as one of the years for recall but has the exact issue.

Water pump failed. The part is on back order with an ETA of October 29. Vehicle is currently at the dealership. I received no alerts before failure.

I am submitting this complaint regarding my 2023 Chevrolet Tahoe equipped with the GM 6.2-liter V8 engine. VIN: [XXX]. At approximately 40,000 miles, the original engine experienced a major failure and was completely replaced by a Chevrolet dealership under warranty. I have now driven fewer than 10,000 miles on the replacement engine and am experiencing a very similar engine-related problem again. The vehicle is currently back at the Chevrolet dealership being inspected and repaired. This is extremely concerning because the original engine failed at only approximately 40,000 miles, and the replacement engine has developed a similar problem after fewer than 10,000 miles. The GM 6.2-liter V8 has been the subject of numerous reported engine problems and complaints, and I believe this repeated failure warrants NHTSA’s attention. I am concerned there may be an underlying or recurring defect affecting these engines that has not been adequately addressed. I am also concerned about the potential safety implications of an engine or valvetrain failure while driving. An unexpected loss of power or significant mechanical failure could create a dangerous situation, particularly at highway speeds or in traffic. I can provide dealership documentation showing the original engine replacement, the mileage at which it occurred, and the current repair visit. This documentation establishes that the vehicle has experienced significant engine-related problems twice within a relatively short period, including a similar problem with the replacement engine after fewer than 10,000 miles. I respectfully request that NHTSA document this complaint and review whether there is a broader pattern of premature or repeated failures involving the GM 6.2-liter V8 used in 2023 Chevrolet Tahoe vehicles and whether further investigation or corrective action is warranted. Replacing the original engine did not resolve the issue, as the replacement engine has now developed a similar problem. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2023 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power and was unable to restart. The message "Engine Overheating - Stop Driving Immediately" was displayed. The vehicle was towed to the dealer, who determined that the engine had failed, and the engine was replaced. The manufacturer was notified of the failure by phone. The failure mileage was 32,295.

We were driving on the highway and the engine started making a ticking noise and AFM light came on. Took the car to the dealership for inspection and they said the lifter had collapsed and it would cost $1000 to tear the engine down to see if the camshaft was damaged. Asked for the estimate to replace camshaft and lifters and they quoted $10,000.

Our Tahoe was included in the recall. The dealership inspected it, found no issue at the time, and told us to switch to a different oil viscosity, which we did. This vehicle has only ever been serviced at a Chevrolet dealership. On August 20th, while driving on the highway, the engine shut off without warning and we had to coast to the shoulder. We attempted to restart it several times, but the engine would not hold an idle. After shutting off all accessories, including the A/C and radio, the vehicle finally started. We brought it back to the dealership for inspection, and once again they could not find any issue. Today, September 14, 2026, we heard loud clanking coming from the engine. We pulled over immediately and had the truck towed to the dealership. At this point, we believe the engine is no longer serviceable and will need to be replaced. We do not believe the change in oil viscosity is an adequate fix for the 2022 to 2024 6.2L engines covered under the GM recall, including the one in our Tahoe. An engine dying without warning at highway speed is a serious safety hazard, and we were fortunate it didn't end in a collision.

The contact owns a 2023 Chevrolet Tahoe. The contact stated there was a misfire in the engine, with the engine warning light illuminated. The message “Collision Mitigation System Off” was displayed. There was a burning odor coming from the vehicle after the failure. The vehicle started shaking abnormally. The vehicle was taken to the local dealer, where it was diagnosed and determined that the lifter and crankshaft needed to be replaced. The contact purchased a rebuilt engine, and the engine was replaced at another service center. The failure mileage was approximately 82,000.

Hard shudder when driving between 45 to 50 mph and when you decelerate around 12 to 15 mph. Inspected at Lond Lewis Chevrolet stated and now being inspected by Bentley Chevrolet due to Lond Lewis Chevrolet doing absolute nothing. Tahoe has 23,000 miles currently. Bought new one owner always serviced as should.

1 week and 1 day later we are stranded again on the side of highway going full speed in our Tahoe. We took it to two different certified Chevy dealerships and they gave us a vague resolution and this issusr is not fixed at all. Our engine is locking up on us at full speed on the highway. This vehicle has 83,000 miles on it and we’ve maintained this vehicle very well.