What battery does my key fob take?
Look up the coin-cell battery for your car's smart key or remote by make, model and year. 337 models from 25 makes, 2014–2023, with the source on every page.
Browse by make
- Acura9 models
- Audi4 models
- Buick9 models
- Cadillac15 models
- Chevrolet24 models
- Chrysler5 models
- Dodge10 models
- Fiat2 models
- Ford24 models
- Genesis4 models
- GMC7 models
- Honda19 models
- Hyundai21 models
- Infiniti12 models
- Jeep10 models
- Kia19 models
- Lexus38 models
- Lincoln10 models
- Mazda11 models
- Mitsubishi9 models
- Nissan27 models
- Scion5 models
- Subaru9 models
- Toyota27 models
- Volkswagen7 models
Why the answer is often “it depends”
The same model can use different batteries for different years or key types. A 2019 Mazda CX-5 smart key is listed with a CR2025 and a 2020 one with a CR2032; a Subaru remote key and smart key can take entirely different cells. This site keeps those rows separate instead of giving one answer per model.
Common battery sizes
CR2032CR2450CR2025CR1620CR1632CR2016CR1616CR2412
Guides
- Key fob not working after a battery change
- How to open a key fob without breaking it
- How to start a car with a dead key fob
Coin cells are dangerous if swallowed. Keep new and used batteries away from children. Energizer warns that swallowing can cause serious injury or death in as little as 2 hours; if a battery may have been swallowed, get medical help immediately (US National Battery Ingestion Hotline 800-498-8666, as listed by Energizer).