Prius Transmission Fluid Capacity: Ensuring Optimal Performance

Understanding Prius Transmission Fluid Capacity


The transmission fluid in your Prius is a vital component that ensures smooth gear shifting and proper functioning of the transmission system. It is essential to maintain the correct fluid level to prevent damage and ensure optimal performance. In this article, we will discuss the transmission fluid capacity for different Prius models and provide you with the necessary information to keep your vehicle running smoothly.

Transmission Fluid Capacity and Type

To determine the transmission fluid capacity for your Prius, refer to the table below:

Prius Model Transmission Fluid Capacity (Quarts) Transmission Fluid Capacity (Liters)
Prius Gen 2 (2004-2009) 3.9 3.7
Prius Gen 3 (2010-2015) 3.9 3.7
Prius Gen 4 (2016-present) 3.9 3.7

Checking and Topping Up Transmission Fluid

To check and top up the transmission fluid in your Prius, follow these steps:

  1. Park your Prius on a level surface and engage the parking brake.
  2. Locate the transmission fluid dipstick, which is usually labeled and located near the engine.
  3. Remove the dipstick and wipe it clean with a lint-free cloth or paper towel.
  4. Reinsert the dipstick fully and then remove it again to check the fluid level.
  5. Observe the markings on the dipstick. The fluid level should be between the “Full” and “Add” marks.
  6. If the fluid level is below the “Add” mark, you need to top it up.
  7. Using a funnel, add the recommended transmission fluid gradually, checking the level periodically until it reaches the “Full” mark.
  8. Be cautious not to overfill the transmission fluid, as it can lead to damage.
  9. Once the fluid level is correct, securely reinsert the dipstick and ensure it is properly seated.


Maintaining the proper transmission fluid level is crucial for the smooth operation of your Prius. By following the recommended capacity and checking the fluid regularly, you can ensure that your vehicle’s transmission system remains in good condition. Remember to use the correct type of transmission fluid as specified in your Prius owner’s manual. If you have any concerns or questions about your Prius transmission, it is always best to consult a qualified technician for assistance.

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