The Nissan Sentra Transmission has historically been one of the more problematic CVTs in Nissan's lineup, generating significant owner complaints across multiple production years. Common issues reported include juddering during acceleration, overheating on long highway trips, and complete failure requiring full replacement on high-mileage vehicles. Nissan extended warranty coverage on multiple Sentra model years specifically because of these widespread documented problems. The newer generation Sentra introduced for 2020 uses an improved Xtronic CVT that has performed considerably better, with far fewer complaints emerging from current owners. Changing Nissan Sentra Transmission fluid every 30,000 miles is the single most effective way to prevent premature failure and extend overall gearbox lifespan.