BatteriesVerified Sep 27, 2026
Key fob battery
CR2025Mazda recommends dealer replacement to avoid damaging the key. Confirm that your key case matches the manual before opening it.
Mazda Motor Corporation source ↗Exact-code service & fitment
Mazda Axela BM5FS: Key-fob battery size & replacement
Different key systems in the same model family can use different coin cells, so keep the key type and exact vehicle evidence together.
2verified facts
1fitment references
2service references
1step-by-step guides
Before you buy or service: Confirm the physical key/transmitter type before buying a coin cell. Stop if the housing or battery arrangement differs from the cited configuration.
Exact answers
2 source-backedSpecifications & capacities
Purchase-adjacent reference
1 exact referencesParts & fitment
Manufacturer-backed service
2 documentedMaintenance & repair references
electrical12 months
Advanced-key battery
Mazda states advanced-key battery life is approximately one year; replace when the green KEY indicator flashes or as needed.
The one-year figure is approximate. Battery life varies with radio-frequency exposure, storage and use; the documented replacement battery remains CR2025 for the covered key type.
Mazda Japan Axela owner manual ↗electricalCondition based
Key fob battery replacement
Use a CR2025 battery for the documented Axela key fob.
Confirm the key type on the individual vehicle before replacement.
Mazda Japan Axela owner manual ↗Owner procedure
Step-by-step guides
Keep the exact code
Continue ownership research
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