Their is a code you have to reset if its a factory radio. Look in the back of your owners manual the code may be their or u may have to take car to dealer to get the code.
How to fix a car radio that stopped working after the battery died?
Some car radios come with an anti-theft feature that kicks in whenever they lose battery power. This feature typically locks the unit up until the correct car radio code is entered. The code is almost always specific to not only the make and model of the radio, but also to that specific unit. If the code for your head unit isn’t written down anywhere in your owner’s manual, you’ll need to have a few different pieces of information ready before you can proceed. Some of the information that you’ll typically have to need includes:
- the make, model and year of the vehicle
- the vehicle identification number (VIN) of the vehicle
- the brand, serial number and part number of the radio
Note: In order to obtain the brand, serial number, and part number of your radio, you will typically have to remove it. If you're uncomfortable with removing and installing a car stereo, you may be better off just taking your vehicle to a local dealer and asking them to reset the radio for you.
