2023 CHEVROLET TAHOE Engine Problems

I took my 2023 Chevy Tahoe in for all recall corrections promptly when the notices were received. My last recall was to run a check to see if my motor was one of the defective 6.2L engines. It was determined it was not and the dealer changed my oil to the new required 0w-40w. Now a month later as I am accelerating on to the freeway ,I am at 65 MPH I cross traffic to merge on to a connector bridge and my car RPM's go through the roof and the car starts to slowly lose power. Zero warning lights are on at this point just decreasing power. As I am on the bridge my engine light comes on with a engine oil hot idle engine notice I am now at 35 MPH. Then a oil pressure low turn vehicle off notice comes up and we are at 15 MPH...

To NHTSA, I am reporting a serious safety defect in my 2023 Chevrolet Tahoe purchased from Criswell Chevrolet (Gaithersburg, MD). Defects include a documented brake system failure while driving and repeated electrical/shift faults preventing shifting out of Park. The issue is ongoing even after the dealer/manufacturer stated it was fixed. Key events: Feb 3, ~12:45 pm: While traveling ~35–39 mph on a five‑lane road, brakes failed. I slowed by coasting uphill and using maximum pedal force to ~5–7 mph before stopping. I have video of the incident and two other times this has happened with pictures as the car was in park. Three prior start-up incidents: All dash lights illuminated (including brake failure and Forward Collison System Unavailable); vehicle stuck in Park. First required towing; dealer could not replicate despite reported stored codes. Subsequent event stranded my family. I have notified Chevrolet and the dealer; their offer does not address...

As the owner of a 2023 Chevrolet Tahoe, I am currently experiencing persistent issues with the instrument cluster going dark and a severely malfunctioning GM 6.2L L87 engine. In November of the previous year, I encountered a sudden and alarming loss of engine power while traveling on a multilane highway at a speed of 70 mph. I successfully maneuvered the vehicle to a narrow shoulder, where I remained, accompanied by a Highway Patrol officer, for over three hours until a tow truck arrived. The GM certified dealership informed me that the engine was seized. The mechanics were unable to start or manually turn the engine. Upon removal of the engine’s oil pan, they found metal fragments in the oil. After having undergone an engine recall “fix” three months earlier, which included an inspection and oil service change to a more viscous 0W - 40, a new oil filter, and a...

My 23 Chevy Tahoe was diagnosed with catastrophic engine failure on 04/02/2025, and per recall N252494000 a case for engine replacement. That replacement was completed and the case was closed on 06/02/2025. Since that time the new, replacement engine has been consuming oil at a high rate, is running with intermittent lag and I am waiting for a diagnostics appt with Chevy.

I purchased a 2023 Chevrolet Tahoe on December 17, 2025. On January 17, 2026, with approximately 17,000 miles, the vehicle experienced a catastrophic engine failure while I was driving. The engine seized without warning, causing a complete loss of power and leaving me stranded on the side of the road. At the time of the incident, my newborn child was in the vehicle, creating a serious safety risk. The vehicle had no prior warning lights or indicators before the failure. After the incident, I learned that there was a known recall or service update related to engine oil viscosity for this model year. This information was never disclosed to me at the time of purchase, and no recall documentation or corrective service was provided prior to delivery. I have since been informed that engine replacement will take over 30 days due to parts availability and that no loaner or rental...

Truck bucked twice in high-speed lane of the highway, gas pedal went soft and we luckily were able to coast the truck to the side of the highway without getting hit. The truck put itself in neutral when we lost the engine and the truck would not restart. It had to be towed, while me and my two kids stood on the side of a dangerous highway for 45 minutes in the snow. The truck has 52,000 miles, Engine was already replaced at 10,000 miles. It just passed the recall inspection and had the upgraded oil that was recommended.

On December 30, 2025, I was driving the Tahoe at a highway speed in Oklahoma City, Oklahoma. I experienced two engine shut-offs. I was able to get the Tahoe to the Chevrolet dealer in Midwest City, OK. Advisor Tim took care of the vehicle and said that they "couldn't replicate the problem." He did mention he had to add engine oil because it was a quart low. We noted that we are currently conducting an oil consumption test with a Chevrolet dealer in Elk Grove, Illinois. He said we had a strong case for it, but the Tahoe was safe for traveling back home to Illinois. The following days, the Tahoe performed well without any issues. On January 3, 2026, we left Spencer, OK, and headed back home to Illinois. Without any warning, while driving at highway speed, the engine shut off completely and would not restart. The failure occurred...

I asked the dealer for information about the L87 6.2L engine rod bearing failure recall. I was told that they wouldnt perform the work until i recieved a letter from GM. This was when i got my first oil change. Then every oil change after that i asked the same question. At 43401 miles i parked the vehicle and havent driven it since. I am afraid to have something happen to me or my family. I paid $82,000.00 for a vehicle that GM's fix is to add thicker oil. I think that the rods and bearings should at least be visually inspected. The dealers maintenance manager at Kunes Lake Geneva says theyll listen to it with a stethescope. If it sounds ok theyll change the oil. I paid way to much to chance my familys safety on thicker oil. To make the situation better the vehicle blue books for $56,000.00...

While Driving to my appointments via the freeway, all of a sudden the vehicle slowed down, I noticed most of the warning lights were on including the check engine light that was blinking. I Happened to be near a GMC dealership which previously did repair work on my vehicle and left it with their service center for a diagnostic inspection. A week later my service advisor contacted me with their Vehicle condition report that my vehicle had camshaft and internal engine group issues. He quoted repairs but recommended replacing the engine. Repair or engine replacement $21,296.51. Six months before this issue I had the same issue the warning lights and it resorted in replacing the brake control cylinder. Once repaired no issues/messages or symptoms with my vehicle until this current engine problem/replacement.

I dont believe the correct fix is changing Oil Viscocity

I bought this 2023 Chevy Tahoe rst brand new from the dealer and about a few months of owning it I noticed that the truck was needing oil before the next oil change. It’s as if it was consuming itself. This continues for month until last week when the truck died on me. I was able to jump start and everything worked fine for a day. The next day things got worse. I was on the highway and truck started shaking and giving off all kinds of codes. I took it to dealer and they said I needed a new battery but that there was also an engine problem. I bought a new battery and none of the messages on dash resolved like I was told. The truck is u drivable motor is knocking and was even making loud popping sounds. Of course my truck just hit 64,000 miles so...

2nd Powertrain failure in 4 months in 2023 Tahoe with 6.2L engine. The first being the Camshaft and lifters failing at highway speeds, which was repaired. The second issue the engine seized while on a tollway going approx 70 MPH with my spouse, children, and family in the vehicle. We were able to coast to the shoulder while waiting on a tow truck. Because of the engine being seized, the Tahoe is waiting on the engine to be replaced. While we wait, we were told they have no loaner vehicles and there are no GM rental vehicles available with who they contract through. Having a 2023 leased vehicle fail twice in 4 months with children in the vehicle is unacceptable and brings to question the safety and reliability of the vehicle moving foreward.

The idler pulley was squealing. Dealership I took it to said this was the 3rd one they've had to replace in the last few days.

The engine in my vehicle has experiences major failures in valve flap adjusters, multiple valve failures, valve cover issues, and over consumption of oil by over a quarter in a week and a half of average driving. My safety was put at risk because the engine failure resulted in traction control malfunctions while going 70 mph up hill on a major interstate. This led to extreme shaking which did not stop until slowing down to below 15 mph. Luckily I was a mile from an exit and was able to coast off the road quickly; it was decent enough weather, and I was less than 5 miles from my destination so I could creep between 15-30 mph to not exacerbate traction control alarms. That slow mph did back up traffic behind me. As far as I am aware the problem was likely reproduced by the dealership service tech, which led...

on [XXX] we bought our 2023 Tahoe High Country from Jeff Gordon Cheverolet in Wilmington NC. In April 2025 a recall was announced on our car for engine failure. In June of 2025 we received a letter stating that a fix for the recall was to have an inspection done. If passed, then an oil change and new cap would be done. This was completed. on [XXX], I was on the highway accelerating to get up the speed, when I heard a loud pop noise. Then i heard loud knocking coming from my engine, the check engine light came on with the traction light as well. The car then had sluggish acceleration and would not accelerate but would have high than normal RPMS and rev when trying to accelerate. I knew then that I had engine failure. I was able to get the car to a safe place and called...

When i asked Kunez Lake Geneva, Wi. When the engine recall would be taken care of. I was told that GMC has to order the recall first. Then when asking about the process of inspecting. They informed me they would listen to the motor and decide if it was effected or not. I paid $82k for this vehicle. I find that listening to the motor isnt a thorough way of inspection. After they deem the motor ok. There going to put higher viscosity oil & an oil cap. What if something happens in the future. Is my familys life safety not important? Summary General Motors has decided that a defect which relates to motor vehicle safety may exist in certain 2021 – 2024 model year Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, and GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with the 6.2L V8...

At a stoplight vehicle wanted to stall out Motor was shaking

My vehicle’s engine has been recalled since June. The dealer refused to inspect because there is no remedy to replace the engine. I have complained since I purchased the vehicle of noises that I’ve heard. I am hearing more noises, and I am increasingly getting more scared every day to drive my vehicle. I will not put myself nor my family in harms way I can get into an accident. I am afraid to drive the vehicle. I am not taking any chances of hurting anyone else or my family or potentially have a fatal accident. two months of driving around scared I will not drive my truck anymore. I am beyond upset that there is no remedy for this and that it is not taken seriously. Something needs to be done regarding my situation and all others. The vehicle was sold, most likely knowing that this was a problem....

Sudden engine failure while driving at high speeds - was not aware of any recall.

Need new rotors and breaks purchased this vehicle with this issue and dealership or manufacturer want to fix this serious problem

Engine connecting rods and crankshaft have manufacture defects that could cause engine failure resulting in a crash. Driving in a large city with an infant and toddler makes the possibility of sudden engine failure extremely dangerous. It puts everyone in the vehicle at risk but especially the children at a huge safety risk. Engine makes odd sound but multiple Chevy dealerships say they won't look at it because they don't have an answer from GM.

While traveling on the highway, the vehicle suddenly lost all power. The gas pedal became unresponsive, and the engine ceased functioning entirely—without any prior warning or indicators. I was forced to coast into a nearby parking lot to prevent a potential collision. This incident put both myself and my child at serious risk of injury or worse, had it occurred at a higher speed or in heavier traffic. Once stopped, the vehicle would not restart. I had no choice but to have it towed to the dealership for evaluation. A week later, the dealership diagnosed the issue as a locked-up engine, confirming that a full engine replacement is necessary. Unfortunately, the replacement engine is currently on backorder, and they are unable to provide an estimated time of arrival. To make matters worse, the dealership has no loaner vehicles available for at least a month. GM only offers a rental reimbursement...

Unusual knocking noises, performance issues, high RPM, - Traction control light is on Feels at times the engine is on verge of losing power while I'm driving on the highway with my children and I could get hit check engine light blinking constantly

Feels like the transmission is slipping. When I step on the gas it makes a jerking/ tugging motion like its pulling backwards and feels as though it has no power. It’s gotten progressively worse now over 10k miles and I should not have any engine problems with a new car. This happens every time I drive it. The problem is not fixing itself it’s getting worse by the day.

I took my car into the Fowler Chevrolet (AKA Century Chevrolet) Dealership in Broomfield, Colorado to get the engine recall addressed for my 2023 Chevy Tahoe-RST. I was told GM doesn't have a solution and has not sent any parts to the dealerships to deal with the recall. This is a significant safety issue/concern since I drive my [XXX] daughter every day in this vehicle. How is an OEM like GM allowed to get away with not having an immediate fix available to such a significant safety issue where an engine just fails and could fail without any warning lights on a highway. Extremely dangerous and nerve racking to drive this vehicle knowing there is this safety recall. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6

Engine performance issues, engine hesitation, abnormal shifting, and reduced propulsion. Interior dash and radio illumination goes black. Blinkers fail to work; no sound comes from the radio and speakers. Mirrors fail to tuck after command given to do so.

I was driving on Highway and system said engine oil hot. 10 seconds later the engine stopped. Could not get it restarted as I moved over to the shoulder. Had vehicle towed and engine was seized. 28,000 miles on vehicle.

I filled my car up with gas and turned it on and it started shaking. Several warnings popped up on the dashboard screen including, Service ESC, Service traction control, And forward collision system unavailable. My cruise control was disabled I had to hold my foot at an angle to keep the speed at 45-50 mph, Causing it to take 10 hours for me to get home from Austin to Dallas. The check engine light was on the entire time and flashed for the last hour to hour and a half. I was unable to pull over at that time because it was dark And I was in the middle of nowhere by myself. The next day I turned my car on.The only thing on was the check engine light, Is , however , around 1 pm that day it Started doing the same thing. I drove it from My patient's...

First was engine shutoff while driving up a windy highway. No warning just shutoff. Second time was catastrophic engine failure. Was told by dealership lower end issue and will require entire motor replacement.

The contact owns a 2023 Chevrolet Tahoe. The contact stated while driving at approximately 45 MPH, there was an abnormal sound coming from the engine compartment before the vehicle stalled. The contact stated that the check engine warning light was illuminated. The vehicle was towed to a dealer to be diagnosed. The vehicle was not yet diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 31,000.

2023 Tahoe with 6.2L gas engine at 29k miles suffered a complete engine failure on a major road at 60mph with no prior warning. We were lucky to be able to get it out of the road safely but it stranded my family. It’s currently at GM dealer waiting for an engine replacement.

Engine replacement at 13,260 miles due to thrown rods in cylinders 7 and 8 in September 2023. The vehicle is currently at the dealership again at 32,000 miles due to transmission issues. No ETA on replacement parts. Up to date on all maintenance and oil changes.

The contact owns a 2023 Chevrolet Tahoe. The contact stated while driving 25 MPH, the transmission unexpectedly downshifted with the check engine warning light illuminated. The vehicle was taken to the dealer where it was diagnosed and determined that the transmission valve body had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 30,000.

We were driving on the highways, we had to break and the car shut off, we barely made it to the side of the road and the car would not turn over, start, or go in to neutral, which was very unsafe. Had to have it drug on the tow truck since it wouldn’t go to neutral and at the dealer it had 17 codes. The engine seized and they are having to order a new engine.

While driving on the highway at high speed, my vehicle suddenly shut down and went into neutral. After a few minutes of trying to start it, it started and I was able to drive it home. The following day, on my way to the dealership for an inspection, while driving on a busy street, it shut down again. This time, it wouldn't restart, and I had to call the police and a tow truck to have it towed to the dealership. I was freaking out as I had my daughter inside the car with me. At that point, the vehicle had around 26,000 miles. The dealership inspected it and determined the engine was faulty and needed to be replaced. After the engine was replaced, the vehicle seemed fine, but recently, I've been experiencing problems again. The car struggles to start when it shuts off during stops, using the auto shut-off...

Engine: Power lost and engine shut down. Yes, it is available for inspection. Warning Lamps: Engine lamp came on: [XXX] [XXX] Engine shut down while driving. While bring my Grandson, home from school. I was on the ramp to exit the interstate, at the stop sign I lightly touched my brakes because I was going very slow, nothing was coming when I accelerated the engine totally shut down in between both lanes on a state highway. All of the warning lamps on the dashboard were lighting up and blinking, all of the alerts were making noises, no power and I had no control of the vehicle, then the “press start signal” came on, I had to quickly place from drive to park, and then press the start button to crank the vehicle. While this was going on my Grandson asked me in a startled voice “what’s happening”. Scary is not...

Spun rod bearing

At approximately 19.000 miles when the car sits for an extended period of time, at the first start up, blue smoke comes from the exhaust tail pipe. Brought it to the dealer and they said that, that was normal. With the issues they are having with the engines, I wanted this to be noted, because blue smoke is indicative of either bad piston rings or bad valve seals. This should not be happening on a vehicle with 19,000 miles and have oil changes at every 3000 miles.

The engine stoped running at about 50mph. Beatty Chevrolet in Knoxville TN has car Suddenl deceleration no brake lights and stuck on curvy [XXX] Engine is lockedup and Beaty ordered a new engine with gm approval Beaty Chevrolet inspected the engine The only message was push start again. The service dept rep said this is rare but had 5 6.2l engines affected at his shop. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

We were driving on a busy interstate in Knoxville, TN on a Sunday. We were 2 hours from home and my 2023 Tahoe basically went into limp mode while I was in the fast lane and the check engine light came on. No warning in advance. The speed reduced, which backed traffic up, and put me and my 4 children in danger. We finally got off the interstate and the vehicle had to be towed in to the nearest dealership. I had a friend drive us to enterprise where they put us in a Jeep Grand Wagoneer. On Monday, I received a call from the dealership stating they had good and bad news. The good news was the repair is covered by warranty but the bad news was it will be 2-3 months before they can get the part. The part is on back order and several people are waiting...

I was driving on [XXX] thru Atlanta to meet my husband in Adairsville, Georgia, and my car started squealing like a belt was squealing and then it started making a loud knocking noise and shut off I was able to get it to the shoulder to see what was going on, when I realized it was in the motor I was about half a mile to the next exit as I did not feel safe being on the side of the road managed to make it to the truck stop after it cut off several times just imagine if someone was close behind me when my Tahoe kept shutting off it could have been a very bad accident called gm roadside assistance and had vehicle towed to nearest dealer they couldn’t look at it so my husband loaded it into the back of his lowboy trailer and took it to...

2023 with 34,000 miles on the 6.2 engine. Shutoff while driving. Engine is bad and will need to be replaced. GM should be forced to do a recall

Started having an issue a few weeks ago with the vehicle shutting off while driving for no reason without warning causing a very serious safety concern. This issue seemed to stop until one Saturday when i started the vehicle i noticed a small tick. This ticking sound continued to grow. The vehicle then shut off again with warning while driving. 7 days had gone by since the first episode. When I started the vehicle again there was a very pronounce rapping and it sounded like parts inside the motor were coming apart. When I arrived home i called Onstar. They did a diagnostic twice and said the motor was not showing any codes and running perfect. I had it towed from my house and upon inspection the motor is blown with 10,000 miles

The contact owns a 2023 Chevrolet Tahoe. The contact stated that upon starting the vehicle, there was an abnormal sound coming from the engine compartment. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable to duplicate the failure. The vehicle was not repaired. The vehicle was repaired, but the failure reoccurred. The vehicle was taken back to the dealer, who then determined that the sound was the lifters tapping. The contact was informed that all 16 lifters needed to be replaced. The vehicle was repaired, but the failure reoccurred. The vehicle was taken to a different dealer, who also diagnosed the vehicle and determined that the failure was with the lifters, and informed the previous dealer might not have been repaired the vehicle properly. The vehicle was not repaired. The manufacturer was notified of the failure, and a case was opened. The failure mileage...

Engine failure due to rod bearing failure, without warning at 16,500k miles. It is available for inspection if needed. Currently is at dealership waiting for new engine. The vehicle shut off while driving at 40mph forcing me to have to stop in the middle of a roadway without any shoulders or turn offs. The problem was diagnosed and confirmed by a certified Chevrolet dealership. The failed engine will be sent to GM by the dealer. There were no warning lights prior to this incident or after.

Vehicle broke down on 12/1/2024. Had it towed to the nearest dealership. Dealership claimed that gasoline was pumped into the tank. We knew that wasn't the case. I called the store we last used for fuel and spoke to the manager. She was able to pull my wife up on surveillance and verified that she pumped diesel fuel from a "diesel fuel only" pump on 11/21/24. We also verified that the fuel in the holding tank at the store was actual diesel fuel. My wife purchased 23.45 gallons of diesel fuel. The tank size on this Tahoe is a 24 gallon tank. We had burned half of this fuel before the vehicle broke down. We also verified that no one else had complained about the fuel from the store. Dealership said it needed a new engine. We had it towed to another dealership for a second opinion, but they couldn't...

Traveling down the highway at 65 MPH the engine/transmission started bucking and you could hear the rear wheel lock up. The vehicle then would not shift and reduced the speed to 55MPH. Check engine light came on. Chevrolet is telling me the valve body needs to be replaced but keep driving it because it is on national backorder. After doing some research GM is hiding the issue and keeps installing faulty valve bodies. The GM fix is that they programmed the transmission to reduce speed when it notices excessive wear. GM is not standing behind the issue as it has been like pulling teeth to get a loaner vehicle.

First the front collision warning systems kept coming on and off. Then the engine died on the highway and I had to restart. I drove a little further and it died again and would not restart. I had it towed to the dealer and they are telling me the engine has seized and needs to be replaced. I have 40,000 mile and the car is 2 years old. It was very dangerous to have the car die twice while at speed on the highway.

Repeated issues with the infotainment system had to be replaced 3 times to date. The motor blew at 49,000 miles 3 weeks ago. The replacement motor is on back order and it is very difficult to get a loaner vehicle, not to mention having to make a payment on the vehicle that I don’t have to use.

Traveling in left lane of [XXX] . Vehicle screen went black and car lost all power. No warning lights. Vehicle towed and inpected by GM dealership and determined that the vehicle needed a new engine. Vehicle maintenance records confirmed proper maintenance was done. Vehicle only 13 months old. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)