Parts & Accessories Peace, mercy, and blessings of God be upon you. Inspection: Free :100: The transmission system in the Nissan Sentra relies on CVT (Continuously Variable Transmission) technology, a system aimed at increasing fuel efficiency and providing a smooth ride. However, it requires a special maintenance routine to avoid common heat-related failures. Most prominent Sentra Gear Problems (especially 2013-2017 models): These models are most susceptible to problems due to manufacturing defects that have sometimes led to lawsuits against the company. The most important symptoms are: Sierra Nissan of Duarte Sierra Nissan of Duarte +1 Overheating: The gear loses power during long drives or in very hot weather. Delayed response and jerking: A feeling of vibration or a "jerk" during acceleration, or sudden gear slippage. Annoying noises: A "whining" or buzzing sound that increases with speed, which may indicate damage to internal parts. Limp Mode: The car is stuck at a very low speed and does not exceed it to protect the gear from complete damage. Saleh Group for Cars Maintenance tips to extend gear life: Due to the sensitivity of the CVT system, experts recommend the following: Oil and Filter Change: It is recommended to change the gear oil (NS-3 type exclusively) every 30,000 to 50,000 kilometers at most, with the necessity of changing both filters (internal metal and external paper). Calm Driving: Avoid sudden acceleration (hard pedaling) which causes significant stress on the metal gear belt. Additional Cooling: Some resort to installing an additional gear cooler to reduce oil temperature, especially in hot regions. Change oil when the car is cold: Do not fill with cold oil when the gear is hot to avoid thermal shock to the delicate parts.