We have expanded our hybrid battery warranty to reflect our confidence in the quality, dependability, and reliability of our products. From the 2020 model year forward, every Toyota hybrid battery warranty will cover 10 years from date of first use or 150,000 miles, whichever comes first (previously 8 years or 100,000 miles). 800-331-4331 For Toyota hybrid, plug-in hybrid, and fuel cell and battery electric vehicles beginning with model year 2020, the hybrid (HV) battery is covered for 10 years from original date of first use or 150,000 miles, whichever comes first. Coverage is subject to the terms and conditions of your New Vehicle Limited Warranty. See Owner's Warranty and Maintenance Guide for details. With an EPA-estimated 25 miles of driving range in EV Mode, 140 Prius Prime runs without using a drop of fuel. Charge it whenever you can, or don't. When the charge runs low, prius Prime will continue to run as an efficient hybrid with an EPA-estimated 54 mpg combined. 140