Locked out of your Mazda stereo after a battery change? Here's exactly what to do.
If your Mazda radio is showing a code request and won't play, it has activated its anti-theft lock — usually after a dead or disconnected battery. You'll need your factory unlock code to get it working again. Here's how.
Mazda factory radios lock after the battery is disconnected. The unlock code is matched to the radio's serial number.
Send us your Mazda radio serial number (or VIN where applicable) and we'll look up the correct factory code and email it to you. Standard delivery is 30 minutes to 24 hours, 7 days a week; Express is guaranteed within one hour during business hours.
Enter the code using the preset buttons, then confirm.
We've supplied factory car stereo unlock codes since 1998, with a money-back guarantee if we can't retrieve a working code. Thousands of Mazda owners have used us to get their radios playing again.