Mazda CX-3: Keys / Keyless Entry System
This system uses the key buttons to remotely lock and unlock the doors and the liftgate.
The system can start the engine without having to take the key out of your purse or pocket.
It can also help you signal for attention or help.
Operating the theft-deterrent system is also possible on theft-deterrent system-equipped vehicles.
System malfunctions or warnings are indicated by the following warning lights or beeps.
- KEY Warning Light (Red)
Refer to Contact Authorized Mazda
Dealer and Have Vehicle Inspected.
Refer to Taking Action.
- Ignition Not Switched Off (STOP)
Warning Beep
Refer to Ignition Not Switched Off (STOP) Warning Beep.
- Key Removed from Vehicle Warning
Beep
Refer to Key Removed from Vehicle Warning Beep.
If you have a problem with the key, consult an Authorized Mazda Dealer.
If your key is lost or stolen, consult an Authorized Mazda Dealer as soon as possible for a replacement and to make the lost or stolen key inoperative.
NOTE
- The keyless entry system operation may vary due to local conditions.
- The keyless entry system is fully operational (door/liftgate lock/unlock) when the ignition is switched off. The system does not operate if the ignition is switched to any position other than off.
- If the key does not operate when pressing a button or the operational range becomes too small, the battery may be weak. To install a new battery, refer to Key Battery Replacement.
- Battery life is about 1 year. Replace the battery with a new one if the KEY indicator light (green) flashes in the instrument cluster. Replacing the battery about once a year is recommended because the KEY warning light/ indicator light may not illuminate or flash depending on the rate of battery depletion.
- Additional keys can be obtained at an Authorized Mazda Dealer. Up to 6 keys can be used with the keyless functions per vehicle. Bring all keys to the Authorized Mazda Dealer when additional keys are required.
KEYS
WARNING
Do not leave the key in your vehicle with
children and keep them in a place where
your children will not find or play with
them:
Leaving children in a vehicle with the key is
dangerous...
Transmitter
NOTE
The headlights turn on/off by operating
the transmitter. Refer to Leaving Home
Light.
(With theft-deterrent system)The hazard
warning lights flash when
the theft-deterrent system is armed or
turned off...
Other information:
Mazda CX-3 (2015-2026) Owner's Manual: Removing a Flat Tire
WARNING When jacking-up a vehicle, always shift the shift lever to 1st or R position (manual transaxle vehicle) or shift the selector lever to P position (automatic transaxle vehicle), apply the parking brake, and place wheel blocks in the position diagonally opposed to the jack: Changing a flat tire without using wheel blocks is dangerous because the vehicle may move and fall off the jack even with the shift lever in 1st or R position, or the selector lever is in P position, which could result in an accident...
Mazda CX-3 (2015-2026) Owner's Manual: Parental lock
If a channel is locked, the channel is muted. To use the parental lock function, the PIN code must be initialized first. By using the session lock, the parental lock can be enabled or disabled during the current drive cycle (from when the ignition is switched on to switched off)...
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Opening and Closing the Liftgate
Opening the liftgate with Electric liftgate opener
Unlock the doors and liftgate, then press the electric liftgate opener on the liftgate and raise the liftgate when the latch releases.
