Engine misfire, AFM lifter collapse, defective AFM/DOD lifter technology. The three diagnosis I have had done to check for multiple opinions have all come back the same with a collapsed AFM lifter causing camshaft damage, overall failure of an AFM/DOD deactiviating lifter in the 6.2L L86 engine leading to engine damage. It is available for inspection. The problem has been confirmed by multiple independent service providers and confirmed to be an issue in ongoing litigation against GM. It was initially diagnosed by a mobile mechanic and then taken to a independent service mechanic who confirmed the initial diagnosis. It was then confirmed again by a third party independent mechanic. The engine light did not appear until the noise started and what I now know as when the lifters failed, at which after my vehicle alerted me with the engine light. When the problem first occurred, I was driving around 35 MPH down a public road, I had to immediately slow down and pull over. I then limped the vehicle to a safe destination where the mobile mechanic was able to check it out. Luckily, I was not going high speeds and the public road I was driving on was not busy so I was able to pull over safely upon the issue the start of the warning lamp flashing. The engine component failure would have been a much higher safety risk for myself and others if I was driving on a busy road or highway. I have spoke with both GM and Cadillac, they are aware of this defect, yet refuse to provide relief. I have been quoted $13,000-$17,000 to begin repairs to the engine.
- NHTSA ID
- 11733767
- Incident
- Apr 8, 2026
EnginePowertrain (other)
Filed Mar 14, 2026
My 2017 Cadillac Escalade with the 6.2L V8 engine experienced AFM (Active Fuel Management) valve lifter failure. While driving on the freeway the vehicle began stuttering and shaking violently, and it felt as though I had lost control of the vehicle. The check engine light illuminated and diagnostic codes P0300 (random misfire) and P0304 (cylinder 4 misfire) were found. The vehicle was confirmed by a Cadillac dealership to have collapsed AFM lifters on the right side, a faulty valve lifter oil manifold (VLOM), and a broken exhaust bolt requiring extraction. The engine was also showing slightly low compression at times and making noise on cylinder 4. This is a known defect in GM's AFM system across multiple model years. The failure poses a serious safety risk as the stuttering, shaking, and sudden loss of engine power occurred unexpectedly at freeway speeds, significantly reducing my ability to safely control the vehicle. The repair has been confirmed and quoted by an authorized Cadillac dealership. The vehicle is available for inspection upon request.
- NHTSA ID
- 11724347
- Incident
- Mar 3, 2026
The 6.2 L engine on my 2017 Cadillac Escalade failed at around 97,000 miles. I took it to Heritage Cadillac dealership for a diagnostic check and had it repaired. The engine had a broken engine rod and lifters damage to the engine. I had the engine repaired at the dealership but a few weeks later I heard rattling noise coming from the engine. I took it back and told I would need a another engine due to complete engine failure. Prior to my engine failure around 55,000 miles, I reported to the same dealership service department that I noticed the engine would give me a rough idle occasionally and burn more gas whenever it happened. I was told it was nothing they could do because the check engine light wasn't on.
- NHTSA ID
- 11719885
- Incident
- May 31, 2025
I am writing to formally report an unresolved issue involving a 2015 Cadillac Escalade that I purchased from a Toyota dealership less than one year ago. The vehicle has experienced a complete engine failure, and I am currently left with a non-drivable vehicle and a loan balance of approximately $30,000. Shortly after the engine failure, I took the vehicle to two different certified repair shops, one of which was a Cadillac service center. Both informed me that the engine is beyond repair and advised me to return the vehicle to the selling dealership due to the short time since purchase. I attempted to return to the Toyota dealership to seek a resolution or possibly trade in the vehicle. However, they informed me that the engine is now inoperable, and they declined to offer assistance. Despite repeated phone calls and emails requesting to speak with a manager, I have not received any response to date. I have also been informed that replacing the engine would cost approximately $17,000, while the current value of the vehicle is around $18,000. This puts me in an extremely difficult position—paying off a $30,000 loan on a vehicle that I cannot drive or repair affordably. The dealership arranged my financing and is fully aware of my financial obligations. I believe they should take some level of responsibility for selling me a vehicle that failed so quickly, especially given that I purchased it less than a year ago. I am seeking assistance from the DMV to help resolve this issue. I believe there may have been negligence or lack of proper disclosure at the time of sale, and I request a formal investigation into this matter. I am also open to mediation or any recommended steps to hold the dealership accountable and find a fair resolution. Please advise on the appropriate next steps or documentation you may need from me to proceed with this complaint. Thank you for your attention to this matter. I look forward to your response. Sincerely, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U
- NHTSA ID
- 11675147
- Incident
- May 23, 2025
At 86,000 miles my 6.2 engine had to be rebuilt. Costing $14,000
- NHTSA ID
- 11674824
- Incident
- Jun 2, 2025
Widely known problem with the 2017 Escalade motor with the active fuel management system. Driving in a very remote part of Wisconsin when engine light went on, indicating a lifter failure due to the afv shutting down cylinders. This is an extremly common problem with this engine/feature. I was left stranded with my family and a costly repair. (5k)
- NHTSA ID
- 11672163
- Incident
- Jun 27, 2025
The contact owns a 2017 Cadillac Escalade. The contact stated while driving at an undisclosed speed, the vehicle lost motive power. There was no warning light illuminated. The vehicle was able to be restarted. The vehicle was taken to the dealer where it was diagnosed and determined that the rocker arm, crankcase, and the overhead valve needed to be replaced. The vehicle was repaired; however, the failure recurred. The contact stated that while driving at an undisclosed speed, there was a misfire coming from the engine. There was no warning light illuminated. The vehicle was taken back to the dealer but was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 50,000.
- NHTSA ID
- 11657209
- Incident
- Apr 28, 2025
- Mileage
- 50,000 mi
Engine making loud lifter tick
- NHTSA ID
- 11652211
- Incident
- Apr 2, 2025
The contact owns a 2017 Cadillac Escalade. The contact stated that while driving approximately 70 MPH with the cruise control engaged, the vehicle unintendedly decelerated to 30 MPH. The contact continued driving the vehicle to the residence at 30 MPH. The vehicle was taken to the dealer, who diagnosed that the lifters had collapsed and bent the push rods. The contact was informed that the cam shifter, push rods, and lifters needed to be replaced. The vehicle was repaired. The contact stated that after the vehicle was repaired, there was a misfire in cylinder #2. The vehicle was returned to the dealer, who determined that the active fuel management port holes needed to be flushed with fuel additive. The vehicle was not repaired a second time. The manufacturer was informed of the failure and referred the contact to the dealer for assistance. The manufacturer opened a case for the failure and offered to cover half the cost of the repair. The failure mileage was 65,000. The VIN was not available.
- NHTSA ID
- 11651072
- Incident
- Mar 13, 2025
- Mileage
- 65,000 mi
EngineOther / unspecified
Filed Feb 24, 2025
The contact owns a 2017 Cadillac Escalade. The contact stated while driving 55 MPH, there was an abnormally loud ticking sound coming from the engine before the vehicle decelerated. The check engine warning light and traction control light were illuminated. The contact was able to pull over to the side of the road. The vehicle was towed to an independent mechanic; however, no cause for the failure was found. The vehicle was not repaired due to the cost. The vehicle was towed to the residence. The independent mechanic sent the contact a picture and diagnosed that a rod bearing was damaged. The contact stated that on a separate occasion, an abnormally loud ticking sound was coming from the engine. The contact towed the vehicle to an independent mechanic, where it was diagnosed and determined that the lifters had failed. The vehicle was repaired. The manufacturer was made aware of the failure and referred the contact to the NHSTA Hotline for assistance. The approximate failure mileage was approximately 95,000.
- NHTSA ID
- 11644549
- Incident
- Dec 19, 2022
- Mileage
- 95,000 mi
Driver assistanceEnginePowertrain (other)
Filed Dec 18, 2024
The contact owns a 2017 Cadillac Escalade. The contact stated while driving at an undisclosed speed, there was an abnormally loud clunking sound coming from the vehicle and the vehicle then decelerated to 30 MPH. The check engine warning light was illuminated. The vehicle was taken to the local dealer, where it was diagnosed that the transmission needed to be replaced. The vehicle was replaced, but the failure recurred. The vehicle was taken back to the local dealer, who recommended replacing the valve body. The part was on backorder, and the vehicle was not repaired. The manufacturer was contacted and opened a case. The approximate failure mileage was 85,000.
- NHTSA ID
- 11631346
- Incident
- Oct 1, 2024
- Mileage
- 85,000 mi
Cylinder 6 always presents as a misfired. Between my fiancé and I, we have 3 Escalades. After several diagnostic checks and repair bills, the lifters damaged the Cam shaft. According to the certified Cadillac mechanics, this is an ongoing problem based on the motor’s design. This is a pretty costly repair x3 vehicles.
- NHTSA ID
- 11563281
- Incident
- Sep 1, 2023
BrakesElectricalEngine
Filed Jun 14, 2023
My family and I were driving and the car started breaking and turning the wheel then died . We took it to the dealership 3x and on the third time they found a code for the safety module On each incident the car was difficult to control and it put my families life at risk. I have sent an email to Mr Roth with GM of my concerns
- NHTSA ID
- 11527108
- Incident
- Jun 12, 2023
The contact owns a 2017 Cadillac Escalade. The contact stated while driving 40 MPH, the vehicle started shaking abnormally. The check engine and traction control warning lights were illuminated. The vehicle was taken to an independent mechanic where it was diagnosed that the valve lifter needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 57,000.
- NHTSA ID
- 11525672
- Incident
- Jun 3, 2023
- Mileage
- 57,000 mi
Driver assistanceEnginePowertrain (other)
Filed Mar 6, 2023
While driving on Highway 360 in Arlington, TX, the engine appeared to not change gears. It was between 3:30 to 4:00 PM, moderate traffic. I left HWY 360 and used the side lane. Later, the engine light came on. I checked the fluid levels and all were fine. This vehicle was last serviced in December 2022. The problem is unknown.
- NHTSA ID
- 11510461
- Incident
- Mar 2, 2023
Driving and heard loud pop and shudder. Heavy vibration at highway speeds making vehicle unsafe to drive and vehicle also shuddered and acted like it was going to die when turning. Took to dealer and dealer discovered broken engine mounts. This is a known issue from GM. TSB 17-NA-166. GM certified service refused once to look at the engine mounts while vehicle was under warranty and had me continue to drive it until warranty had expired.
- NHTSA ID
- 11455758
- Incident
- Nov 24, 2021
BrakesElectricalEngine
Filed Jul 16, 2020
VEHICLE IS AFFECTED BY STEERING AND BREAKS THE CAR JURKS
- NHTSA ID
- 11339831
- Incident
- Jan 15, 2020
- Mileage
- 10 mi
SEVERE BUCKING AND OR SURGING WHEN SWITCHING GEARS. HAS ACTUALLY SURGED WHEN AT A FULL STOP.
- NHTSA ID
- 11234076
- Incident
- Feb 4, 2018
- Mileage
- 15,000 mi
Driver assistanceEnginePowertrain (other)
Filed Jun 20, 2019
HARD SHIFTING, SHAKING, JERKING, HESITATING SHUDDERING
- NHTSA ID
- 11221566
- Incident
- Jan 2, 2018
BrakesDriver assistanceEngine
Filed Feb 26, 2019
IT HAS HAPPENED SEVERAL TIMES , WHILE DRIVING IN A PARKING LOT AT 10 MPH WHILE MAKING A TURN THE ENGINE SHUT OFF, LOST STEERING AND BRAKES AND THE STABILITRAK WARNING LIGHT CAME ON... THE ENGINE RESTARTED IN ABOUT 5 SECONDS... I CONTACTED CADILLAC MAIN OFFICE LAWANDA 855-880-1400 EX 5911833 AND SENT A EMAIL TO MARY BARRA CEO... THEY GAVE ME A CASE #[XXX] THEY ARE AWARE OF THE PROBLEM AND RECALLED OVER ONE MILLION VEHICLE BUT MY VIN NUMBER HAS NOT BEEN ADDED YET.. THEY WILL NOT FIX IT TILL GM ADDS MY VIN TO THE NATIONAL RECALL #18289... I WAS TOLD OFF THE RECORD THAT MONEY TRUMPS CONSUMER SAFETY....THEY ARE MAKING US PICKUP THE CAR WITH THE KNOWLEDGE BY US DRIVING THE CAR COULD KILL SOMEONE IF WE LOOSE STEERING AND BRAKES WHILE DRIVING... PARTS OF THIS DOCUMENT HAVE BEEN REDACTED TO PROTECT PERSONALLY IDENTIFIABLE INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6). *TT
- NHTSA ID
- 11182490
- Incident
- Nov 8, 2018
- Mileage
- 15,000 mi
EnginePowertrain (other)
Filed Aug 2, 2018
ENGINE CEASED RUNNING AT 55 MPH. CHAIN OF FAILURES- ENGINE VALVE STEM FRACTURED (CYLINDER # 2), VALVE DROPPED INTO CYLINDER, PISTON STRUCK VALVE, VALVE DEFORMED TO CYLINDER HEAD, ENGINE CEASED PROPERLY DETONATE FUEL COMPLETELY, MULTIPLE CODES, ENGINE SHUT OFF. NO ADVANCED SIGNAL GIVEN TO DRIVER, NO ALARMS WHEN ENGINE SHUT OFF. POWER STEERING AND POWER BRAKES CEASED TO WORK WHILE DRIVING IN 55 MPH ZONE, ON A TURN COMING TO A RED LIGHT. EXTREMELY DANGEROUS FOR 5 OCCUPANTS. FAILURE AS SHOWN IN PICTURES BELOW OF THE VALVE COMPONENT ARE RELATED TO A MATERIAL IMPERFECTION. THE NATURAL OF THIS FAILURE DURING THE METAL FORMING PROCESS WAS NOT DETECTED FOR THIS COMPONENT AND WILL EXIST WITHIN OTHER COMPONENTS WITHIN MY VEHICLE OR OTHER VEHICLES. ONCE THE PROBLEM IS IDENTIFIED AND CORRECTED, ENGINES OF THE EFFECTED VEHICLES WILL HAVE TO BE REPLACED TO AVOID THIS SAFETY ISSUE, AS IT LEADS TO POTENTIAL DEATH.
- NHTSA ID
- 11115279
- Incident
- Jul 15, 2018
- Mileage
- 16,233 mi
BrakesEngine
Filed Jan 7, 2017
BRAKE AND GAS PEDALS MOVED ON THEIR OWN WITHOUT BEING COMMANDED. HAPPENED SEVERAL TIMES, VEHICLE NOT MOVING AT THE TIME. TOOK TO THE DEALER AND THEY OBSERVED IT. COULD NOT FIND THE PROBLEM, SENT ME AWAY. HAPPENED AGAIN AND DEALER ORDERED A SENSOR TO BE INSTALLED WHEN IT COMES IN.
- NHTSA ID
- 10940317
- Incident
- Dec 28, 2016
- Mileage
- 845 mi
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.