1,059 of the
12,970 complaints filed about the Chevrolet Tahoe
are about the engine —
100% of everything owners reported.
The worst model year for it is 2021.
The number 7 DFM lifter failed and is suspected of failing due to the Active Fuel System. The vehicle is currently at the dealership where it was diagnosed and is awaiting replacement parts that are on GMC back order for a month or longer. The vehicle started shaking on 8/25/26 when idle and the following warning lights were visible: AVS, traction control, and ECU.
NHTSA complaint #11764249 — an unverified report by a vehicle owner.
Vehicle began making loud knocking sound XXX Towed to dealer 9/8 after holiday. They found metal in the oil and believe it needs an engine replacement. A week later I have no answers, there's no loaners available, so I am just without a car. We bought car from Zimbrick Chevy in [XXX]. It was never disclosed to us that the vehicle had an engine replacement right before we purchased. New engine lasted about 16,000 miles. Only once we saw the history of the car in the current dealership's service app did we learn about the engine replacement. This is beyond unacceptable! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
NHTSA complaint #11764193 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11764113 — an unverified report by a vehicle owner.
DFM (Dynamic Fuel Management) system failure causing collapsed lifters, oil consumption, and complete engine failure. To repair our vehicle it will require a complete engine replacement. This has been a known issue with GM and yet there has been no recall to fix the issue. Now our engine must be replaced.
NHTSA complaint #11763919 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11763723 — an unverified report by a vehicle owner.
The lifters got stuck not even a month after I purchased the car and then I had them replaced and now its caused further issues in the engine. Its cost me thousands of dollars and I havent even had the car for 5 months.
NHTSA complaint #11762921 — an unverified report by a vehicle owner.
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.
NHTSA complaint #11762588 — an unverified report by a vehicle owner.
Driving on the interstate and vehicle started slowing down then abruptly stopped. We were able to get onto the shoulder of the road. The gear would not stay in drive mode continuing to slip out of drive and into park. We made it to a dealership in Knoxville tn where we had to leave it..
NHTSA complaint #11762304 — an unverified report by a vehicle owner.
I experienced the issue being investigated with Investigation: EA26005 I lost engine power while driving my 2024 Chevy Tahoe. GM is now conducting a full engine replacement with another L87 engine.
NHTSA complaint #11762277 — an unverified report by a vehicle owner.
Engine started "ticking" for a bit. Then sounded like marbles were in the engine. Loss of power and engine light came on. Dealer says my 6.2 engine failed and new one needed. Less than 9000 well cared for miles!
NHTSA complaint #11761956 — an unverified report by a vehicle owner.
We were driving full speed down the highway and the vehicle completely shut down steering wheel locked and we were stranded for six hours. Turns out the dealer said it was just the battery and they fixed the grounding of the battery. I’m sorry but I’m not satisfied with this response. I’m scared to drive this vehicle.
NHTSA complaint #11761638 — an unverified report by a vehicle owner.
The contact owns a 2021 Chevrolet Tahoe. The contact stated that while driving approximately 70 MPH, the message "Service ESC" was displayed, and the check engine, traction control, and Forward Collision Avoidance warning lights were illuminated. The vehicle started shaking and then lost power. The vehicle was pulled over to the side of the road, parked, and then turned off. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure. The failure mileage was 118,000.
NHTSA complaint #11761231 — an unverified report by a vehicle owner.
On approximately January 15, 2026, my 2025 Chevrolet Tahoe equipped with the 6.2L V8 engine suffered a complete engine failure at approximately 10,000 miles while my family and I were traveling about six hours from home. The engine/propulsion system failed and the vehicle became inoperable. The specific internal engine component that initially failed is UNKNOWN. The sudden failure put my family at risk because we were stranded far from home with an inoperable vehicle. The Tahoe had to be taken to an authorized Chevrolet dealership, where the engine failure was confirmed and warranty repairs were performed. General Motors opened Chevrolet Customer Assistance case number 87586632 on January 16, 2026 and communicated with the dealership throughout the repair. The Tahoe remained at the dealership awaiting repairs and parts through at least February 4, 2026. GM correspondence confirms that the vehicle had been returned to us by February 7, 2026. The vehicle was unavailable for approximately three weeks. Prior to the failure, OnStar sent a low 12-volt battery alert on January 15, 2026. I do not know whether that alert was related to the engine failure. On February 2, 2026, while the vehicle was still undergoing repairs, OnStar sent a critical engine and transmission system diagnostic alert. Any other warning lamps, messages, noises, or symptoms immediately preceding the failure are UNKNOWN. The vehicle was inspected and repaired by an authorized Chevrolet dealership, and General Motors was involved through its Customer Assistance department. Whether a GM representative separately inspected the failed engine is UNKNOWN. The vehicle was not inspected by police or an insurance representative to my knowledge. Whether the original failed engine or its components are still available for inspection is UNKNOWN; the dealership or General Motors may have retained them. 2025 Chevrolet Tahoe, case number 87586632.
NHTSA complaint #11761400 — an unverified report by a vehicle owner.
Driving on the Highway the Engine failed at highway speeds and the Tahoe experienced a complete shutdown, we could not restart the vehicle nor shift to neutral. We had the vehicle towed and was told by the dealer that it needs a engine replacement at 14,000 miles.
NHTSA complaint #11761464 — an unverified report by a vehicle owner.
The contact owns a 2019 Chevrolet Tahoe. The contact stated that while driving at an undisclosed speed, there was a misfire coming from the engine and the vehicle lost motive power and was violently shaking. The check engine warning light illuminated. The vehicle was towed to the dealer where it was diagnosed with a collapsed lifter in cylinder #7. The contact was informed that the engine needed to be replaced or rebuilt. The vehicle was repaired. The contact stated that the left side of the engine was rebuilt but the failure reoccurred. The vehicle was towed to the dealer where it was diagnosed with a failed cam lifter in cylinder #6. The contact was informed that the right side of the engine needed to be rebuilt, or the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 80,118.
NHTSA complaint #11760956 — an unverified report by a vehicle owner.
Had a engine failure at 93,000 miles and upon doing a vin report found out it also had a engine put it at 7,800 miles so it now has its third engine in it and also had the high pressure pump fail and the gauge cluster fail and had to be replaced
NHTSA complaint #11761160 — an unverified report by a vehicle owner.
The lifters are tapping on my vehicle and the engine also has a shutter to it. I am also not getting 5000 miles per oil change by 5000 miles my vehicle is showing add engine oil and is taking 2qts to get it back showing on the oil stick.
NHTSA complaint #11760686 — an unverified report by a vehicle owner.
2025 Chevrolet Tahoe, 6.2L L87, approximately 51,500 miles, rod-bearing/internal engine failure, complete engine replacement required. 1500 miles prior to engine failure the cam/lifters were replaced. Repair invoices are attached. I was told my warranty going forward would be the remaining miles left on my 60k power train warranty. This is not acceptable.
NHTSA complaint #11760708 — an unverified report by a vehicle owner.