Use Mazda's documented Lock-button toggle for a stored spare key; transmitter buttons remain available while passive entry and pocket-key starting are disabled.
Check that your vehicle has it.
Verified in the 2025 CX-70 manual and scoped here to the cataloged 3.3-liter mild-hybrid trims; the separate plug-in-hybrid routes are not included.
- Retail trim / version
- 3.3 Turbo Preferred, 3.3 Turbo Premium, 3.3 Turbo Premium Plus, 3.3 Turbo S Premium, 3.3 Turbo S Premium Plus
Does the documented scope match your car?
This check combines the verified year, any source-supported powertrain scope, source-named trim/package and required equipment. It does not read a VIN or factory build record.
Published availability and qualifications
Verified in the 2025 CX-70 manual and scoped here to the cataloged 3.3-liter mild-hybrid trims; the separate plug-in-hybrid routes are not included.
Know what kind of control to look for.
This original category diagram is an orientation aid, not a picture of your exact trim. Use the written labels and your vehicle manual to identify the real control.
Step by step.
- 01
Press Lock on the CX-70 transmitter four times within three seconds.
- 02
Confirm the key operation indicator illuminates.
- 03
While it is lit, hold Lock for at least two seconds.
- 04
Wait for one hazard-light and warning-sound confirmation.
- 05
Repeat the same sequence to restore passive key detection before normal use.
Important limits
- Remote buttons remain usable, but advanced passive entry and starting with the key in a pocket or bag are suspended.
- The key's operation indicator stays dark in power-saving mode.
- Replace a depleted key battery; this mode only reduces communication while stored.
Quick checks.
- ✓If no confirmation occurs, repeat the four presses within three seconds and start the hold while the indicator is on.
- ✓If passive entry remains active, perform the full toggle again.
- ✓If the vehicle cannot detect a stored key, turn the mode off before diagnosing a fault.
What happened on your vehicle?
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2025 Mazda CX-70 Digital Owner's Manual — Key Power-Saving Function
Relevant section or page: Key — Convenient Ways to Use the Key. We use the written official source to determine the steps and applicability shown above.
Reviewed with a visible trail.
Scope and steps were checked by Car Cheat Codes Editorial Review. A guide is narrowed or corrected when the source does not support a broader claim.
- Published
- Last modified
- Source checked
Guide change history
- Initial verified publication.