Car Key Fob Battery Size by Model & Chassis Code
Different keys for the same car family can use different coin cells. Match the exact key system before buying a replacement.
17 source-backed answers across 16 vehicle codes.
Smart key battery
CR2032
Honda specifies a CR2032 coin cell for the Smart Key used on this Fit generation.
Honda · Grace · GM4 · 2014–2020Key fob battery
CR2032
Honda’s Grace Hybrid owner manual specifies a CR2032 coin-cell battery for the smart key.
Honda · Vezel · RU3 · 2013–2021Key fob battery
CR2032
Honda specifies a CR2032 coin-cell battery for the smart key used with the first-generation Vezel, including the RU3 hybrid.
Mazda · Axela · BM5FS · 2013–2017Advanced-key battery life
Approximately 1 year
Mazda states the advanced-key battery life is about one year and instructs replacement when the green KEY indicator flashes.
Mazda · Axela · BM5FS · 2013–2017Key fob battery
CR2025
Mazda's Axela owner manual specifies a CR2025 lithium coin cell for the Advanced Key used on the BM-generation Axela.
Nissan · Note e-POWER · HE12 · 2016–2020Key fob battery
CR2025
Nissan specifies a CR2025 coin-cell battery for the Intelligent Key used on the E12/HE12 Note generation.
Toyota · Allion · NZT260 · 2007–2021Key fob battery
CR1632 with Smart Entry & Start; CR2016 without it
Toyota’s Allion key-battery guidance lists CR1632 for the electronic smart key and CR2016 for the wireless key without Smart Entry & Start.
Toyota · Aqua · NHP10 · 2011–2021Smart key battery
CR1632 (electronic smart key)
Toyota lists CR1632 for the electronic smart key on Aqua models from the December 2014 minor change through the July 2021 model change.
Toyota · C-HR · NGX50 · 2016–2019Electronic key battery
CR2032
Toyota’s C-HR owner manual specifies a CR2032 lithium coin cell for the electronic key.
Toyota · Corolla Axio · NKE165 · 2013–2025Smart key battery
CR1632 with Smart Entry & Start; CR2016 without it
Toyota’s Corolla Axio Hybrid NKE165 manual lists CR1632 for the electronic key on Smart Entry & Start vehicles and CR2016 for the wireless key without that system.
Toyota · Premio · NZT260 · 2007–2021Key fob battery
CR1632 with Smart Entry & Start; CR2016 without it
Toyota’s Premio documentation lists CR1632 for the electronic smart key and CR2016 for the wireless key without Smart Entry & Start.
Toyota · Prius · ZVW30 · 2009–2015Smart key battery
CR1632
Toyota’s ZVW30 Prius owner manual specifies a CR1632 lithium battery for the electronic key.
Toyota · Prius · ZVW50 · 2015–2018Smart key battery
CR2032
Toyota’s Prius FAQ lists CR2032 for hybrid-model electronic keys from the December 2015 model change through the January 2023 model change.
Toyota · Prius · ZVW51 · 2015–2018Smart key battery
CR2032
Toyota’s Prius FAQ lists CR2032 for hybrid-model electronic keys from the December 2015 model change through the January 2023 model change.
Toyota · Prius · ZVW55 · 2015–2018Smart key battery
CR2032
Toyota’s Prius FAQ lists CR2032 for hybrid-model electronic keys from the December 2015 model change through the January 2023 model change.
Toyota · Sienta · NHP170G · 2015–2022Key battery
CR2032 with Smart Entry & Start; CR2016 without it
Toyota specifies CR2032 for Smart Entry & Start keys and CR2016 for vehicles without the system.
Toyota · Voxy · ZRR80 · 2014–2021Smart key battery
CR2032 (electronic smart key)
Toyota lists CR2032 for the Voxy electronic smart key from the January 2014 model change through the January 2022 model change.
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