2024 Cadillac Escalade

On 8/25/2026, my 2024 Cadillac Escalade with the 6.2L V8 suffered a sudden loss of propulsion at approximately 49,754 miles. While my husband was driving and preparing to enter the highway, the vehicle went into Neutral and lost propulsion. He heard a loud banging noise, the low-oil warning illuminated, and the check-engine light began flashing. I later looked in the Cadillac app and saw code P0016. The engine then completely seized. The vehicle was towed to Sewell Cadillac. The dealer documented that the engine would not crank or turn manually, found metal/debris in the oil and internal bearing/rod damage, and replaced the complete engine. We picked up the Escalade on 8/29/2026 at approximately 49,779 miles. After only 127 miles, at approximately 49,906 miles, I experienced another loss of propulsion while driving. The vehicle unexpectedly went into Neutral and shut off. I was able to restart it and safely move it, but it shut off again. There were no warning lights after restarting. The vehicle was towed back to the dealership. On the second repair order, the dealer documented the complaint as “vehicle turned off and went to neutral.” They found code U3000, documented “ECM software out of date” and “ECM software malfunction,” and reprogrammed the ECM using GM’s SPS system. The repair order identifies this as a “REPEAT REPAIR” related to the prior engine replacement. As far as I know, my VIN was not included in the applicable 6.2L engine recall, and I was not informed by the dealership about the known 6.2L engine issue. I am reporting this because the vehicle has experienced two sudden loss-of-propulsion events in less than 50,000 miles, including one only 127 miles after complete engine replacement. I am concerned this vehicle is unsafe to drive.

My 2024 Cadillac Escalade had the 6.2 v8 engine recall done in 6/25. I’ve put less than 8k miles on it since and just rolled 32400 miles total. While driving with my family in the car on 8/30 on the highway, it lost all power and just shut off while driving highway speeds. I was able to safely stop but very dangerous. Vehicle would not restart and had to be towed to dealer.

Component/System Involved: Engine / Powertrain and Vehicle Electronic Control Systems, including Serial Data Gateway Module Description of Failure: While driving at highway speed (approximately 60 mph), the vehicle experienced a sudden and complete loss of propulsion without warning. Engine power was lost while traveling on an interstate, forcing me to pull onto the shoulder without propulsion. The loss-of-power event occurred more than once during the same trip. The vehicle was towed to an authorized Cadillac dealership for inspection. Dealer diagnosis confirmed internal mechanical engine failure, including metal debris present in the engine oil, requiring full engine replacement. During diagnostic procedures, the dealership also identified electrical communication faults involving the serial data gateway module, including voltage fluctuation and wiring chafing within the vehicle harness. These faults caused loss-of-communication conditions between control modules and required repair. Safety Risk: The loss of propulsion occurred at highway speed with passengers present in the vehicle, creating a serious safety hazard. Sudden power loss on an interstate increased the risk of collision due to the inability to maintain speed or maneuver safely in traffic. Confirmation / Inspection: The failure was confirmed by an authorized Cadillac dealership. The engine was removed and replaced due to internal damage. Electrical communication faults related to the serial data gateway module were also confirmed and repaired. Warning Indicators: No warning lamps or alerts were displayed prior to the loss of propulsion. Communication faults were identified during post-failure diagnostics. Current Status: The vehicle has undergone engine replacement and electronic repairs and is currently under post-repair monitoring due to the severity and safety implications of the failure. Availability for Inspection: The vehicle and repair documentation should be available through dealership

Coffee was spilled on center console while transferring cup from Starbucks employee to cup holder. Cup was overfilled and lid wasn’t on properly. Immediately the dash panel started flashing and the service transmission light came on. Drove around a parking lot for a few minutes and seemed okay to drive even with the instrument panel flashing. Had 90 mile drive and during drive message similar to slow down for gear shift popped up and “Service Shifter See Owner’s Manual” came up. When I went to exit freeway and was around 5 MPH the vehicle slammed to a stop. Then would not go into any other gear. As I called for tow driver I turned vehicle back on and was sitting when the vehicle started moving again without my control. I then drove it an additional 20 miles home staying above 20 MPH. Insane Cadillac would design a $120k vehicle with that risk in a very susceptible to spills area. Incredibly unsafe. Beyond traumatizing experience with a vehicle that has leas than 8500 miles on it.

1.What component or system failed or malfunctioned, and is it available for inspection upon request? •The primary issue was with the vehicle’s software system, which was incompletely updated on 9/13/24. This has caused the safety features to malfunction. Additionally, the parking emergency brake engaged suddenly while I was driving. The vehicle is currently available for inspection upon request, as I have already reported the issue and requested immediate attention from the dealership. 2.How was your safety or the safety of others put at risk? My safety,, was severely put at risk when the parking emergency brake suddenly engaged while I was driving. This sudden braking caused me to sustain a strained neck and strained back. I was fortunate to avoid a more serious accident, but this malfunction was extremely dangerous. Additionally, the faulty safety features and the repeated and incorrect engagement of the OnStar emergency system have caused further distress and distractions while driving. 3.Has the problem been reproduced or confirmed by a dealer or independent service center? •As of now, the problem has not been reproduced or confirmed by the dealer. I have scheduled an appointment for inspection on 10/2, and I have made the dealership aware of the issues through my communication. 4.Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? •The vehicle or component has not yet been inspected by the manufacturer, police, or insurance representatives. I have only reported the issue to the dealership so far and requested an immediate inspection and resolution. 5.Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? •Yes, there were symptoms prior to the emergency brake incident. After the incomplete software update on 9/13/24 the vehicle’s safety features began malfunctioning.

I started my Escalade and 5 minutes later I lost power which as the entire vehicle had no power. So I left it alone for an hour or so in my garage and I started up again and this time didn’t loose power. Everything appeared normal and working again. Than the next day I started it up and I had this popup message SD card has been removed press ok to exit navigation (when no SD card was removed). I also noticed that my backup camera, grid lines, or augmented reality has also intermittently not working on days. It sometimes works as normal and sometimes it does not. The message shows Service Augmented Reality System. The following next day, while I’m cruising on the highway the Escalade shifted into neutral when I was going 75 mph and had no mechanical power. So I pulled over stoped the vehicle and shut it off. Restarted after 15 minutes and it operated normally. I’m worried about Safety since it shifted to neutral at highway speed and lost mechanical power, along with other power issues which is extremely dangerous. This vehicle either is a lemon or there is a unknown manufacturing defect and in both cases needs to be replaced due to egregious safety concern.