Mazda CX-3: Before Driving / Advanced Keyless Entry System (Some models)

Operational Range and Key Suspend Function

Operational Range The system operates only when the driver is in the vehicle or within operational range while the key is being carried. Starting the Engine NOTE Starting the engine may be possible even if the key is outside of the vehicle and extremely close to a door and window, however, always start the engine from the driver's seat...

Advanced Keyless Entry System

WARNING Radio waves from the key may affect medical devices such as pacemakers: Before using the key near people who use medical devices, ask the medical device manufacturer or your physician if radio waves from the key will affect the device...

Other information:

Mazda CX-3 (2015-2026) Owner's Manual: Overheating

If the high engine coolant temperature warning light turns on, the vehicle loses power, or you hear a loud knocking or pinging noise, the engine is probably too hot. WARNING Pull over to a safe location, then switch the ignition off and make sure the fan is not running before attempting to work near the cooling fan: Working near the cooling fan when it is running is dangerous...

Mazda CX-3 (2015-2026) Owner's Manual: Fuse Replacement

Replacing the fuses on the vehicle's left side If the electrical system does not work, first inspect the fuses on the vehicle's left side. Make sure the ignition is switched off, and other switches are off. Open the fuse panel cover. Pull the fuse straight out with the fuse puller provided on the fuse block located in the engine compartment...