2017 Cadillac Escalade: check engine light

Filed Apr 25, 2026 · Engine · KS

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.

Filed Mar 14, 2026 · Engine, Transmission · UT

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.

Filed Feb 23, 2026 · Engine · GA

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.

Filed Jul 16, 2025 · Fuel system · 130,000 miles · IL

The contact owns a 2017 Cadillac Escalade. The contact stated while driving 25 MPH, the vehicle briefly jerked and was unable to accelerate as needed. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the fuel injectors. The vehicle was not repaired. After investigating the failure, the contact related the failure to Special Coverage: N182198000. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline for assistance. The failure mileage was 130,000.

Filed Jul 9, 2025 · Engine · IL

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)

Filed Feb 24, 2025 · Driver assistance, Engine · 95,000 miles · MI

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.

Filed Dec 18, 2024 · Acceleration, Engine · 85,000 miles · GA

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.

Filed Jun 6, 2023 · Engine · 57,000 miles · MI

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.

Filed Mar 6, 2023 · Acceleration, Engine · TX

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.