The ProPilot Assist system makes it easier for you to drive in a semi-autonomous way. The Nissan Altima offers this system on the SL trim and higher so that you can enjoy a more relaxing journey. In certain situations, you can take your hands off the wheel so that the vehicle can steer for you. This system offers features that make it easier for you to drive in all kinds of situations. We will work with you to ensure you get an amazing vehicle that you will love, but we think you need to get a test drive at our dealership. Contact our dealership to learn about all of the 2021 Nissan Altima Trim Levels Also serving San Juan Capistrano, Garden Grove, Costa Mesa, and Huntington Beach California.