2025 Chevrolet Tahoe

On January 16, 2026, the Office of Defects Investigation (ODI) opened Recall Query RQ26001.  This investigation was opened to assess the remedy effectiveness of Recall 25V-274. ODI has received complaints alleging engine failure in vehicles after the recall remedy had been completed, whether that remedy involved an oil viscosity change or a complete engine replacement. General Motors (GM) issued Recall 25V-274 to address concerns of engine failure in the L87 engines produced between March 1, 2021 and May 31, 2024. GM cited the root cause as a supplier manufacturing and quality issue. GM’s recall remedy for Recall 25V-274 consisted of two different repairs, either an oil viscosity change or an engine replacement, based on the results of the remedy inspection procedure. ODI continues to receive reports of engine failures after the completion of the recall remedy. To date, ODI has received 499 complaints alleging post-remedy engine failure in vehicles subject to Recall 25V-274, 473 of which involved an oil viscosity change and 26 a complete engine replacement. Additionally, ODI has received 191 reports of L87 engine failures in engines produced after the production period cited in Recall 25V-274. GM reported receiving 6,953 complaints of post-remedy engine failure. ODI is opening this Engineering Analysisto continue investigating complaints of post-remedy engine failure. ODI is expanding the scope of this Investigation to include engines produced after the production period cited in the recall. To review the ODI reports cited in the Opening Resume ODI Report Identification Number document, go to NHTSA.gov.

This is in regards to my 2025 Chevy Tahoe High Country with 12,300 miles. I was driving on the parkway during rush hour and when I took the exit ramp I head a loud ticking. I immediately pulled over as the noise was loud and became louder and faster upon acceleration. I had the car towed to my hometown dealership approximately 36 miles away. The dealership concluded that the engine was damaged beyond repair and I was getting a new engine. When I inquired to why and what was the damage, they told me that the only way to figure out the root cause of the engine damage was to do a total engine breakdown which requires 15 man hours to do. No warning lights came on and the car showed no issues before this incident.

NHTSA ID

11775246

Incident

Oct 28, 2026

While driving on the highway, the engine started making a knocking noise and the vehicle shut down causing us to have to pull over on the side of the road in the middle of highway traffic. The engine light came on and the vehicle would no longer drive leaving my family stranded on the side of the highway. The vehicle had to be towed 200 miles back home.

NHTSA ID

11773664

Incident

Aug 1, 2026

This report is related to NHTSA EA26005 Investigation. My 2025 Tahoe had an engine failure while on a trip. The speed was approximately 55 mph. The SUV was in L9 transmission setting driving up a slight grade on the highway. The engine RPM was approximately 2,000 RPM. Engine oil press, according to the instrument gauge was 48-50psi, engine temp was normal. Started to hear a rumbling sound and at first thought it was the radio, turned down radio volume and realized it was coming from engine compartment. There were no warning lights or other preliminary indications other than noise. The RPM dropped to around 1400-1500 at the same approximate throttle pressure I had and oil pressure shot up to 60 psi and remained there. During the time the engine continued to operate with a loud racket there were no advisory lights other than the high oil pressure and lower RPM. Slowed down. Due to the road topography, there were no safe areas or shoulders to pull off to side of road. Fortunately there was no traffic coming towards me or behind me. I was able to continue at slow speed for approximately 4 miles until reaching intersection of [XXX] and [XXX] and was able to safely pull of to the side of the road. Since there was no cell phone service in the area, I was able to talk with a person nearby who took me to a garage several miles away to arrange for tow service. The Tahoe only 13,400 miles on it. It had two oil changes with the GM recommend oil, 0W-20 dexos1 Gen3 and GM filter. The oil had been changed two weeks before the engine failure and the oil level was checked by me prior to the start of the trip. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11772725

Incident

Oct 16, 2026

- Repeated check engine lights on for "traction control", "service ABS", and "ESC". - Repaired several components of wheel hub assembly, speed sensor, and breaking module. - Wheel speed sensor repaired 3x - Now dashboard messages are reading "service brake assist", "service steering column", and "service transmission now unable to shift soon". - Athens Chevy never called for a GM engineer and wont return phone calls. We have twin newborns and the vehicle is currently parked in a driveway because we are not confident in its ability to operate safely. I have stressed this to every GM service tech I've spoken to and the lack of concern is concerning in itself.

NHTSA ID

11771573

Incident

Oct 30, 2025

Began to accelerate to pass a slower vehicle on the highway. Just as it started to accelerate the engine abruptly shut off and the vehicle began decelerating. Many warning messages came up on the dashboard but none were present prior to the event. Was able to coast onto the shoulder of the highway before stopping. Attempted to restart vehicle but it would not restart. Vehicle was towed to the nearest Chevrolet dealership where they were able to assess that something inside the motor had failed and caused it to lock up.

NHTSA ID

11767479

Incident

Aug 30, 2026

On September 5, 2026, at approximately 7:18 p.m. Pacific Time, a 2025 Chevrolet Tahoe High Country equipped with the 6.2L L87 V8 engine and approximately 18,000 miles experienced a sudden catastrophic failure while the engine was running. There were two occupants. A distinct pop was heard. The engine immediately lost power and multiple dashboard warning lights/messages began flashing. Within approximately 20-30 seconds, smoke and an electrical-burning odor were noticed. The vehicle was shut off manually and both occupants exited. Flames were first observed toward the rear of the engine compartment. The fire spread extremely rapidly, and the vehicle was substantially engulfed within approximately two minutes and completely destroyed. The sudden loss of propulsion created a crash risk, and the rapid fire placed both occupants at risk of serious injury or death. No physical injuries were reported. The precise failed component and fire origin have not yet been determined. The vehicle had received an oil change from an independent service facility within approximately 30 days before the incident. The cause has not been confirmed by GM, a dealer, or an independent fire expert. The vehicle is involved in an active insurance total-loss claim; inspection should be coordinated promptly before the salvage is released, dismantled, sold, or destroyed. More than 100 photographs and several videos taken during and after the fire are available. A fire department report is pending. Because NHTSA Engineering Analysis EA26005 includes 2021-2026 GM vehicles equipped with the L87 engine and later-produced engines outside Recall 25V-274, please associate this complaint with that investigation and evaluate whether an L87 engine failure initiated the fire.

NHTSA ID

11764705

Incident

Sep 5, 2026

Engine seized up and needs replacement.

NHTSA ID

11764329

Incident

Sep 9, 2026

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 ID

11761400

Incident

Jan 15, 2026

This Preliminary Information provides diagnostic tips and guidance for situations where key fobs cannot be learned or programmed successfully.

This Preliminary Information communication provides information to the technician about vehicles that have an intermittent no crank, no start, or start stall concern with the security light coming on. Technician may find Diagnostic Trouble Codes B3055, B3

Beginning with 2026 model year production, the floor console/armrest lamp design was changed by removing the tilt-switch ball. As a result, the lamp remains illuminated when the floor console compartment lid is closed. The BCM turns the lamp off after the ignition is switched off to prevent battery rundown. This PI is to inform dealers of the change in the lamp and operation of the lamp following repairs.

This PI is to instruct dealer on diagnostic procedures that need to be completed prior to replacing a radio or IPC display

This Preliminary Information is to inform technicians to not replace any parts at this time and to use the work around provided. When a fix is available, this PI will be updated to a bulletin.

This Preliminary information communicates an issue with the virtual garage door opener not programming to a garage opener and to replace the opener with a new updated part.