Mazda CX-3 Forums

Hi everyone, new to this forum

Recently had a red key icon appear on display whilst driving home at night locked car as usual by just walking away. Next morning when I went to gain entry to my car by simply pressing the little black rubber insert in the door handle "with keys in my pocket" door failed to unlock, but the light on the handbrake lit up. So now I'm thinking oh dear what's this . So I press key fob open tab ... that's a no go Pressed the lock tab no go So pressed unlock then lock and the car locked Strange, very strange, so now I press the unlock tab on the fob and doors unlock and i can then start the car This lock problem keeps on happening if the car is left locked after approx 4 hours. But if I return within that time the car wi unlock normally by using the Black rubber button on the handle.
Tell me I'm not in the twilight zone please

TIA

Try changing the key fob battery

Hi. I should have mention that. I did. In both key fobs

I don't fully understand your description of the symptoms, e.g.

...the light on the handbrake lit up...

what light?

And,

...So pressed unlock then lock and the car locked

but you said the car was already locked because it wouldn't open?

Anyway, initially, I would probably get the vehicle battery charge & condition checked and also change the battery in the key fob.

Can I suggest changing key fob batteries again with a decent make (Duracell? Etc) that have been purchased recently - number of times I've heard someone say "but I've changed the batteries for new ones".... But these 'new ones' have been sitting in their drawer for several years!

Thanks

2019 model, similar problem, tried resetting lock to fob button use but the setting is not retained. The red key light comes on as I get into the car sometimes, so it won't start. I have to exit the car, lock and unlock the car, then I can start it. Tried new batteries, even expensive Duracell, no difference. Now booked into Mazda garage in new year. Thankfully still under warranty

Hi all!
Today I happily fulled the trunk with luggage and closed it. I arrived, tried to open with the trunk button - did not respond. I unloaded through the rear seats and opened the trunk from the inside/ I don't have a third button on the remote /.
The button on liftgate still doesn't respond and I have to open it from the inside. The car is 3 years old, somehow I can't believe it failed. The number plate lights work, ie. the fuse is not blown, but I don't hear a click on the fifth door when unlocking and locking the car /infact I cant remember if there was any before/.
Another thing I found after that - the driver's door /LH/ does not lock/unlock with the remote control and the car does not recognize it as open - the interior lighting and the indication of the open door on the dash does not come up.
Mechanical key opening works. I dont have keyless system.
I was looking for a corresponding fuse, but I can't find one.
Any ideas?

Regards!

Are you pressing the correct button on the boot? There are two of them. Only the middle unlock the boot. The one on the right locks the car.