NHTSA complaint #11712432

Owner complaint summary

The engine has an Active Fuel Management system that has frequent failures of the lifters which causes the push rods to bend. This causes a misfire and the check engine light to illuminate. A broken piece of material entered the lower portion of the engine which could have caused an engine failure while on the highway. I had the vehicle towed to a dealership before a catastrophic failure occurred. Cadillac refuses to warranty this defect when the engine reaches 70k miles. The dealership sees this often and replaced the lifters on only one bank (head) at the cost of $4,000. This occurred on my 2018 Escalade which was under warranty at the time. They had to replace the camshaft and all the lifters on that vehicle.