2023 Cadillac Escalade: sudden loss of power

Filed Aug 31, 2026 · Driver assistance, Engine · NC

I am reporting ongoing safety concerns with my 2023 Cadillac Escalade involving unexpected acceleration and loss of propulsion while driving. On XXX, while traveling to [XXX] in slow-moving traffic with Super Cruise engaged, my vehicle unexpectedly accelerated forward. I immediately applied the brakes to avoid striking the vehicle ahead. I reported the incident to the Cadillac dealership and contacted OnStar. OnStar records reflected the acceleration/hard-braking event, but the dealership could not identify the cause. On XXX, the vehicle experienced a significant loss of engine/transmission power while I was driving. I contacted OnStar, which reported transmission control module-related diagnostic codes P0747 and P0700 and indicated reduced power/transmission malfunction. I had difficulty reaching a safe location and the vehicle was ultimately towed to a Cadillac dealership. I have also experienced ongoing excessive oil consumption. I first reported this in May 2024 at approximately 21,000 miles. Multiple oil consumption tests were performed, but I repeatedly had to add oil between changes. In June 2026, the vehicle displayed an “Add Oil” warning even though the oil life monitor showed approximately 37% remaining. The vehicle has also had recurring HVAC problems requiring multiple dealership visits, including a coolant flush for an air pocket and later vent actuator recalibration. The vehicle has been inspected and serviced by authorized GM/Cadillac dealerships multiple times, including recall work, oil consumption testing, powertrain diagnosis and HVAC repairs. Despite these repeated visits, concerns continue. My primary safety concerns are the unexpected acceleration and subsequent loss of propulsion/reduced power while driving. I am reporting these incidents because they may indicate a safety-related defect. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 30, 2026 · Engine · OH

I was driving down the road, doing approximately 50 mph, when my vehicle shifted itself into neutral and I lost power completely. The information center said "reduced power. Press the start button to regain power," which I did, but nothing happened. I had to pull off the road and have my vehicle towed to a Cadillac dealership in Lima, OH. The dealer, Lima Auto Mall, confirmed I suffered a complete engine failure. This is one of the 6.2L engines that GM has recalled and I had already had the engine inspected by my local Cadillac dealer and they told me my engine was "good," and switched to the 0W40 motor oil. I had just had the vehicle into my Cadillac dealer 4 days prior where they performed an oil change, tire rotation, 80,000 mile service , etc. Four days later, the motor completely failed and had to be replaced.

Filed Aug 22, 2026 · Engine, Fuel system · IL

The engine/powertrain malfunctioned on my 2023 Cadillac Escalade at approximately 29,434 miles, ultimately requiring complete engine replacement. During the engine repair, the Cadillac technician also discovered that the transmission cooler lines were leaking fluid. The dealership replaced all of the affected transmission cooler lines as part of the repair.The original failed engine was removed by the Cadillac dealership, so I do not know whether GM/Cadillac retained it. The failure involved the vehicle’s engine and created concern about the possibility of sudden loss of propulsion or engine failure while driving. Because this is a large vehicle routinely operated on public roads and highways, an unexpected loss of engine power could significantly reduce my ability to safely accelerate, merge, or move the vehicle out of traffic. Fortunately, I brought the vehicle in for service after noticing the abnormal engine noise before a complete failure occurred while driving. Yes. Heritage Cadillac inspected and diagnosed the vehicle. The dealership documented my complaint of a “weird noise on start up” that continued until approximately 10 MPH. The technician removed the valve covers and inspected the rocker arms and pushrods. The dealership ultimately determined that an engine replacement was necessary and replaced the engine under warranty. Yes. The vehicle was inspected and repaired by Heritage Cadillac, an authorized Cadillac dealership. The dealership diagnosed the engine issue and replaced the complete engine. During the repair process, the technician also discovered leaking transmission cooler lines. I did not receive a warning lamp or dashboard message alerting me to an engine problem. The primary symptom was an abnormal engine noise shortly after startup that continued during initial acceleration to approximately 10 MPH. This prompted me to bring the vehicle to Heritage Cadillac for inspection. The dealer documented this symptom on the repair order.

Filed Jul 31, 2026 · Electrical, Engine · AL

2023 Cadillac Escalade, 6.2L V8 (RPO L87). Subject of Recall 25V‑274 and the federal safety agency investigation RQ26-001. Over the past year, this vehicle has been out of the shop only about 90 days total. The rest of the year it has been in dealer service at GM/Cadillac dealerships for a recurring, undiagnosed loss-of-power defect. It is currently in dealer service. FAILURE: The vehicle has suddenly lost all motive power on three separate occasions. Engine runs, vehicle loses all drive power, will not restart. Two events occurred at approximately 80 mph on an interstate highway. One occurred with children in the vehicle. The only warning is a “service rear axle” message that appears just before power loss. No diagnostic trouble code has isolated the fault. Root cause has not been diagnosed. REPAIR PATTERN: Six dealer visits across two Cadillac dealerships in one year. Interventions have included two battery replacements, a full engine replacement under Recall 25V‑274, an approximately $1,500 charge categorized as diagnostic with no repair labor documented, and most recently a “wiring harness manipulation / re-wrap” performed over approximately 90 days. Dealer personnel described the fix as “manipulation fixed it” — which is not a diagnosed repair. On at least one return of the vehicle, dealer personnel stated in the presence of a witness that they were not certain the defect had been fixed. The “service rear axle” warning returned within three days of the most recent repair. POST-RECALL: The engine was replaced under Recall 25V‑274 and the loss-of-power failures continued afterward. This is directly relevant to RQ26-001, examining post-recall-remedy failures.

Filed Jul 28, 2026 · Engine · MA

Vehicle started making a horrendous noise, knock and squeeling noise while on the highway. Approximately 2 minutes later the check engine light came on and we completely lost power. Went from 70 to zero dead on the side of the NY Thruway rapidly. Vehicle was towed to the dealer where it was confirmed that an engine replacement was necessary. Engine previously passed PICO test and update to the oil cap was completed. Oil changes every 5k miles.

Filed Jun 17, 2026 · Electrical, Transmission · NY

The vehicle has experienced the same safety issue on two separate occasions. While driving, the vehicle suddenly lost power and displayed a “Conditions Not Correct for Shift” warning message. During the incident, the vehicle became stuck in Drive and could not be shifted normally. The brakes also did not respond as expected, creating a significant safety hazard and making it difficult to maintain control of the vehicle. The failure occurred without warning and has happened more than once, raising concerns about the safety and reliability of the vehicle’s electrical, powertrain, and braking systems.

Filed May 21, 2026 · Engine · NC

I was driving at highway speeds when my vehicle suddenly lost power and began rapidly decelerating. The vehicle eventually stalled in the middle of the roadway, creating a serious safety hazard for me and other drivers and significantly increasing the risk of a crash. This vehicle had previously undergone the GM safety recall inspection under Recall N252494000 for the L87 6.2L engine loss of propulsion defect. The recall inspection and remedy failed to identify the underlying engine defect, and the engine still catastrophically failed only months later. After the recall was completed, the vehicle was maintained according to GM’s updated recall instructions, including use of the required 0W-40 engine oil. Despite compliance with the recall remedy and maintenance requirements, the engine still failed during normal highway operation. The recall specifically acknowledged potential manufacturing defects involving the connecting rod and/or crankshaft components that could lead to engine failure and loss of propulsion. That is exactly what occurred in this incident. I believe the recall inspection procedure was inadequate and failed to detect defective engines that remain unsafe and subject to catastrophic failure even after being marked as “recall completed.”

Filed Apr 16, 2026 · Engine · TX

I am filing a safety complaint regarding repeated engine and drivability issues with my vehicle, which began shortly after purchase and have continued despite service visits. I purchased the vehicle on 03/04/2023. Within approximately one month (03/26/2023), I began experiencing abnormal engine behavior, including ticking noises and instances where the vehicle would shut off and require restarting. I immediately brought the vehicle to the dealership. At that time, the issue was not properly diagnosed and I was told after a test drive that the noise was “normal. On 12/18/2025, I was later notified of an engine recall involving the same type of engine problem I had been reporting since 2023. I brought the vehicle in 12/19/2026 and the engine failed 3 times. I was informed that an engine replacement was necessary, and the vehicle was left at the dealership. It was ready for pickup on 01/14/2026 after the engine replacement was completed. On 04/15/2026, the vehicle began making knocking noises and would not shift into drive or reverse. I had to turn the vehicle off and restart it in order to regain drivability. On 04/16/2026, while driving, the vehicle began making a loud revving noise without accelerating and started to slow down and lose power. I was forced to pull over to the side of the road. The vehicle would not respond properly until I turned it off and restarted it again in order to continue driving. These ongoing issues present a serious safety concern due to repeated loss of power and drivability while operating the vehicle.

Filed Apr 10, 2026 · Engine, Transmission · MD

Dealership stated they fixed recall ref# N252494000 on 9/24/25. But on 4/9/26 noticed engine noise (knocking), then a lose of power and then vehicle stalled on the highway.

Filed Feb 11, 2026 · Engine, Steering · FL

On September 8, 2024, while traveling approximately 75 mph on Interstate 4 with my wife and five children, this 2023 Cadillac Escalade experienced a sudden catastrophic loss of engine power following a hard shift. Steering, braking assist, and acceleration were effectively lost and the vehicle shifted into neutral without warning. We were nearly struck by a tractor-trailer while attempting to reach the shoulder and were stranded on the highway in unsafe heat for over an hour without roadside assistance. A dealership inspection confirmed catastrophic internal engine failure involving metal debris and spun bearings, requiring complete engine replacement and related component repairs under manufacturer direction. The vehicle was out of service for approximately 15 days. The failed components and repair documentation are available for inspection through the dealer and manufacturer. No prior warning lights or messages were present before the initial failure. On February 8, 2026, the replacement engine experienced a second sudden loss-of-power event. The day before, the vehicle briefly lost propulsion near 40 mph approaching a stoplight and restarted with difficulty. The following day, while backing from a parking space into an active roadway, the vehicle again lost propulsion and became disabled, nearly resulting in a collision with an approaching truck while surrounding traffic was forced to stop. This repeat failure of the engine/powertrain system has been reproduced and confirmed by a dealership and previously inspected by the manufacturer. The recurring sudden loss of propulsion without adequate warning creates a serious and ongoing safety hazard to occupants and surrounding motorists. The failed components and vehicle remain available for inspection upon request.

Filed Jan 12, 2026 · Engine · NC

Component/System Failure: The engine experienced catastrophic failure related to Recall N252494000 (the federal safety agency 25V‑274), resulting in complete loss of power and immediate engine shutdown. The original engine was removed and replaced by the Cadillac dealership. The failed engine should be in possession of the dealer or manufacturer and should be available for inspection upon request per manufacturer retention policies. Safety Risk: The vehicle lost all power while traveling at highway speed on Highway 70 with three children and two adults in the vehicle. I was forced to coast into a center turning lane between oncoming traffic in both directions, with no ability to accelerate or move out of traffic. The shutdown occurred without warning, creating a high risk of rear-end or head-on collision. Loss of life was narrowly avoided. Confirmation of Failure: The failure was confirmed by an authorized Cadillac dealership, which determined the vehicle was affected by the active engine recall and replaced the engine under recall service, confirming the failure matched the known defect. Inspections: The vehicle was inspected by the Cadillac dealership acting on behalf of the manufacturer. No police or insurance inspection occurred since no collision took place and the issue was handled through recall repair. Warnings or Symptoms: There were no prior warning lights or drivability symptoms. While driving, a message stating “not safe to drive” appeared, and within approximately five seconds the engine shut off completely. There was no abnormal engine noise before shutdown. After failure, the vehicle could not be restarted, turned off, or shifted and automatically placed itself into park.

Filed Oct 21, 2025 · Engine, Transmission · 30,000 miles · TX

The contact owns a 2023 Cadillac Escalade. The contact received notification of the federal safety agency Campaign Numbers: 25V274000 (Engine and Engine Cooling), and another recall; however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that while driving at various speeds, the transmission made a whining sound. The vehicle lost power and shut off without warning. The failure had occurred while driving at various speeds, or while idling at a stop sign or red traffic light. The vehicle was taken to the dealer and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The engine was not replaced. The dealer confirmed that the recall repairs could be performed. The failure persisted after the recall repair was completed. The manufacturer was not made aware of the issue. The failure mileage was approximately 30,000.