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CR2016 key fob battery: which cars use it

The CR2016 is a 20 mm wide, 1.6 mm thick, 3-volt lithium coin cell. In this guide it is listed for 19 vehicle models.

Size code explained: “CR” is the lithium coin-cell chemistry; the first two digits are the diameter in millimetres (20 mm) and the last two are the thickness in tenths of a millimetre (1.6 mm).

Can I use a different battery instead?

CR2032 (3.2 mm), CR2025 (2.5 mm) have the same 20 mm diameter but a different thickness. Use the code your fob specifies: a thinner cell can lose contact and a thicker one can bend the contacts or stop the case closing. Reddit threads about fobs that “won't snap on” or stop working after a swap often trace back to this.

Vehicles whose key fob uses a CR2016

VehicleModel years
Scion FR-S2014–2016
Scion iQ2014–2015
Scion tC2014–2016
Scion xB2014–2015
Scion xD2014
Subaru BRZ2014–2019
Toyota 4Runner2014–2019
Toyota 862018–2019
Toyota Camry2014–2017
Toyota Corolla2014–2019
Toyota Corolla Cross2022–2023
Toyota FJ Cruiser2014
Toyota Highlander2014–2019
Toyota Prius c2014–2019
Toyota RAV42014–2018
Toyota Sequoia2018–2019
Toyota Tacoma2016–2023
Toyota Tundra2018–2021
Toyota Yaris2014–2018

Source: Energizer Key Fob Battery Replacement Guide (©2023, model years 2014–2023), PDF checked 12 November 2026. “—” means the source lists no battery for that year and key type; it does not mean the vehicle has no fob.

Year ranges are the first and last listed years; some models skip years or use another battery for a different key type. Check the model page.

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).