NHTSA complaint #11750688

Owner complaint summary

I was driving my 2021 Nissan Rogue on the highway, returning from the airport after picking up a friend, when the check engine light illuminated and the vehicle began jerking on acceleration. The vehicle lost power and would only move very slowly, leaving me traveling well below highway speed in active traffic. This created an extremely dangerous situation, as surrounding vehicles were approaching at full highway speed while my vehicle could not accelerate or maintain a safe speed. The vehicle also appeared to be running hot. I did not feel safe continuing to drive the vehicle, so I stopped driving it and had it taken to Crest Nissan of Frisco (Frisco, TX) for diagnosis. The dealership retrieved diagnostic trouble codes P1217 (engine overheat) and P0300 (random/multiple cylinder misfire). Upon inspection, they found low coolant, pressure-tested the cooling system, and confirmed that coolant is entering multiple cylinders, causing the misfire and overheating. The dealership states the engine cannot be repaired and the long block engine assembly must be replaced, at a quoted cost of $6,955.49. The vehicle is barely outside the manufacturer's warranty by time and mileage. There was no warning prior to this failure, and the vehicle has been properly maintained. This is an internal engine failure (coolant intrusion into the cylinders), not a maintenance-related issue. I am aware of other 2021 Nissan Rogue owners reporting the same failure — coolant entering the cylinders/mixing with oil, misfires, overheating, and dealers requiring full engine replacement shortly after warranty expiration. This defect presents a serious safety hazard: sudden loss of power and inability to accelerate in highway traffic creates a significant risk of a rear-end collision.