Cadillac Escalade ESV check engine light comes on

Filed Oct 27, 2026 · Engine, Fuel system · WA

On XXX, while driving out of my driveway, my Escalade stalled while backing out. I attempted to restart the vehicle, but it produced a cranking noise and indicated that I should start again. Additionally, the check engine light illuminated. Unfortunately, the vehicle failed to start. On XXX, while driving to pick up my children from school with a baby in the backseat and a [XXX] passenger, my Escalade stalled again in the middle of the road. I was stranded while other vehicles were driving back and forth. Nearby individuals assisted me by pushing me off the road to the side. The same issue occurred, and code P129F was sent to my phone from OnStar. I was forced to have my car towed, which posed a risk to my family’s safety as I attempted to get on the highway with four children under the age of [XXX] and being pregnant. I had to wait for my husband to pick us up from the roadside for two hours. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 26, 2026 · Electrical, Engine · FL

Since May 24, 2026, my 2023 Cadillac Escalade ESV has repeatedly experienced reduced engine power, check-engine warnings, multiple dashboard alerts and loss of propulsion. During one incident, the motor stopped responding, the vehicle lost power and came to a complete stop in the middle of a public roadway. This exposed me and surrounding motorists to a serious collision risk. Whether the shutdown resulted from an internal engine failure or an electrical/control-system malfunction remains UNKNOWN. OnStar documented recurring warnings and fault codes, including engine/transmission communication faults. The same condition returned after multiple dealership visits and repair attempts, including module resets/reprogramming. At times the check-engine light was no longer illuminated upon arrival, but the dangerous symptoms and OnStar reports had already occurred. An authorized Cadillac dealership blamed alleged aftermarket alarm/tracking equipment and proposed charging approximately $1,900 to remove it. I paid $250 for an independent inspection, which found no such aftermarket equipment and identified the questioned component as a genuine GM part. This incorrect diagnosis delayed meaningful investigation. GM escalated the matter to a specialized field engineer at Braman Cadillac. I was informed that the senior engineer could not identify the cause and requested another engineer. The promised follow-up inspection was still pending nearly three weeks later. Despite repeated visits and manufacturer involvement, no confirmed root cause or permanent repair has been provided. GM did not arrange towing for the latest return. I drove the malfunctioning vehicle in the emergency lane everyt time because it could not be trusted to maintain normal operation. The vehicle remains at the dealership and is available for inspection. I request investigation of the recurring shutdown/loss-of-propulsion safety defect and the unsuccessful diagnostic and repair history.

Filed Sep 19, 2026 · Fuel system, Suspension · CA

About 11pm Driving 70 on freeway started feeling pull back and then started to hear a knock noise. So turned down the music and the knock noise was getting louder as I was driving so I went to the right lane as I went to the right lane I felt like the car was pulling back and slowing down even as I accelerated… knock got even louder and I decided to exit the freeway early instead of getting to my destination. As I exited the freeway the entire car shut down lights flickered check engine went on and low oil pressure flickered once but then turned off. I couldn’t get it in park couldn’t get the car to turn over. I was able to get out of the middle of the intersection turning off the freeway and pulled gas station called AAA. I’ve had no prior problems or warning lamps before this problem happened with the vehicle. I have videos of the whole incident that will not let me download on bottom of page. “2023 Escalade ESV, VIN [XXX]. Towed to Cadillac of Laguna Niguel. Engine knocked, then complete no-crank, suspected seizure. I need a case tied to recall N252494000 / the federal safety agency 25V‑274 and special coverage N252494003. Do not authorize paid diagnosis. I need a loaner Escalade or equivalent and PQC approval for engine replacement.” “This SUV was towed to Dealership on September 18th at 1130pm. 2023 Escalade ESV, 6.2 L87. It knocked and now it will not crank at all engine is likely seized. Cadillac case number is XXX Book this under GM recall N252494000 and special coverage N252494003 — L87 connecting rod / crankshaft / loss of propulsion. To service advisor: Please do not bump-start or crank it. Do not write this as a starter, battery, or customer-pay no-start. I want the RO to say: ‘Catastrophic L87 internal failure, no crank after knock, inspect for engine replacement under N252494003.’ Open PQC today. I also need a comparable loaner. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 31, 2026 · Engine · 56,000 miles · SC

The contact owns a 2023 Cadillac Escalade ESV. The contact stated that on several occasions while driving and accelerating, the vehicle stalled and jolted forward. Additionally, while driving at undisclosed speeds, the vehicle lost automotive power with the check engine warning light flashing on and off. The vehicle was taken to a local dealer where it was diagnosed; however, the contact was informed that no cause for the failures was found. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 56,000.

Filed Aug 22, 2026 · Engine · SC

In August of 2025 my escalade went t the dealership to perform the engine recall test. It passed the test and the oil change fix was completed. However, within weeks or so the engine began to experience some issues. It was taken back to the dealership and a full engine replacement was performed. Fast forward to the beginning of August 2026. The new engine is experience the same symptoms as before. Flashing engine light, rough idle, loss of power, and excessive gas consumption, knocking, etc. I took the car to the dealership and this is the service advisors message to me about the car: "Cylinders one and six are causing the misfires, he sent some information to our technical assistance center because the cylinders walls do not show a lot of damages but, like I said before it was low in oil with no present oil leaks. He has to capture some freeze frame data for technical assistance and send in so it has to be driven some more. They want it driven over some miles. They will determine if we replace the engine or not, I may not have an update from them until Monday. They do not work on Saturdays and Josh your technician has to perform all of the test they sent over. A lot of the extra testing has come from this possibly being the second engine that could go in the vehicle. The car remained for about 2 weeks and gm refuses to pay for a new engine until because there isnt enough data. Meanwhile I am stuck driving a car that can seize up and leave me at any time. They also refused to buy back or help me into another vehicle without coming all out of pocket on my end

Filed Aug 22, 2026 · Engine · MI

I pulled out onto a highway and sped up to 65 mph. About 10 minutes later, I heard a ticking sound.That sound proceeded to get very loud, almost like a loud pan banging/squeeling. The car seemed to “drive” normal but that sound was heard only on acceration of the gas pedal. If I was not pressing on the gas, the car sounded normal. Once I pressed the gas, the loud squeal occurred . I had it towed 3 hrs away to the Cadillac dealership who replaced my engine. Said it was the crankshaft in my 6.2l engine. The car was returned to me, and two days later, the check engine light came on. I drove to the local GM dealer to get it scanned. It said “engine control module starter drive control” and “engine control module starter motor control”. So I drove it home. The next day, I went to start it and nothing happens. The screen lights up, says “service 4 wheel drive” and I can’t put in neutral or gear. Does not turn over, nothing. Now I’m waiting for my tow back to dealer which is 3 hours away and Onstar said it could take up to 5 days bc of distance.

Filed Aug 16, 2026 · Engine, Fuel system · CA

Bought vehicle brand new in 2021 took delivery in 2022. Had to have a full transmission replacement and radiator that was cracked replaced at 30,000 miles. Over the next few years have had fuel delivery issues due to fuel pump. This fuel pump was not fixed. As of this year 2026 i've had the vehicle in the shop just shy of every single month. I have had a thermostat sensor that caused the engine fan to go into high RPM causing limp mode on the freeway with a family of 5 in the vehicle. Ive had breaks replaced and not mounted correctly. Additionally, being told the radiator is cracked again in the exact same spot from the initial replacement. Most recently i had a "exhaust pressure back flow valve replaced" that also caused the vehicle to go into limp mode. The following week was another pressure back flow valve issue from the install requiring 2 forced regen's. Approximately 4 days later (08/14/26) from getting the vehicle back from the dealership i have a new check engine light recommending a new catalytic converter. These issues predominately and without warning putting the car into limp mode on the highway is causing major safety concerns for my family with 3 little girls. The vehicle continues to be assessed at the dealership and we have been treated as more of a nuisance than a customer with major vehicle concerns

Filed Aug 12, 2026 · Engine, Fuel system · NV

On [XXX], while driving my 2023 Cadillac Escalade ESV from the Salt Lake City area toward Las Vegas, the vehicle developed a serious loss-of-power condition in Utah. I contacted OnStar, exited the highway, and waited at a gas station. OnStar arranged towing to a Cadillac dealership. GM records document the tow at approximately 56,644 miles. At the dealership, I reported the loss of power. After initially being told they were too busy, I waited about 10 minutes and was then told the vehicle was ready. After returning to the highway, the vehicle suddenly lost power again at approximately 70 mph. Pressing the accelerator did not produce normal acceleration, creating a serious risk of a highway collision. I immediately returned to the dealership. The dealer then performed another repair. The invoice states the Service Engine Soon light was illuminated, soot level was 255%, and a service regeneration was performed. I was charged $406.16 and was again told the vehicle was ready. After leaving again, the same loss-of-power condition occurred. After safely exiting the highway, I recorded video showing the vehicle at approximately 38 mph with little or no acceleration response and the check-engine light illuminated. I returned to the dealer for a third time. The dealer then kept the vehicle, stated the repair was covered under warranty, and provided a rental. The vehicle has remained under repair since July 21. I have not received a clear explanation of the root cause or complete repair details. I have videos, towing records, repair documents, photos, and GM correspondence. I am concerned this repeated sudden loss of propulsion at highway speed could cause a serious crash. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Aug 9, 2026 · Engine · WA

My 2021 Cadillac Escalade ESV with the 6.2L L87 engine received the remedy for Safety Recall 25V‑274 (GM recall number N252494001) on July 30, 2025. The dealer inspected the engine, passed it, and performed the higher viscosity oil remedy. The engine was not repaired or replaced. On [DATE], while driving, the vehicle hesitated and lost power under acceleration. Engine noise then increased progressively until I pulled over on the side of the road. The engine stopped running and would not restart. The dash displayed a message to press the start button again. The check engine light illuminated at the time of failure. There were no warning lights prior to that day. My family, including my children, were in the vehicle when it lost power. We were stranded on the roadside until the vehicle could be towed. The battery and electrical system are functioning normally, but the engine would not start. The vehicle was towed to a Cadillac dealership. At the dealership, a start attempt produced a loud knocking noise from the engine along with a fuel/oil odor. I believe the connecting rod bearings have failed. These symptoms — hesitation, loss of power, and knocking noise — are the exact pre-failure indicators GM identified in Recall 25V‑274. This was a loss of motive power while driving on a public roadway, creating a serious crash risk for my family and surrounding traffic. The recall remedy performed on this vehicle was inadequate. GM inspected this engine, passed it, and it failed approximately one year later in exactly the manner the recall was intended to prevent. Date of incident: 08/08/2026 Mileage at failure: 66,000 Recall remedy completed: July 30, 2025 Vehicle was towed. No crash, fire, or injury occurred.

Filed Aug 4, 2026 · Electrical, Engine · OH

P0306 misfire. Flashing check engine light. Ive replaced all spark plugs. Ive replaced the ignition coil. Still has not fixed problem. While doing research on how to replace fuel injectors came across an article stating special coverage N102291660 for fuel injectors extending the warranty to 10 years, 150,000 miles but this is not showing for my VIN. My vehicle has the 6.2L engine so Im not sure what this is covered for some but not others when this is a known problem. I bought this vehicle a year ago because my wife and I took in custody of our 3 nieces all under age 2 thinking this would be a reliable vehicle. Id like to understand why my vehicle os not covered for this known issue, but others Cadillac ESVs are.