Finding the Serial N. on a 500's Radio
To get the correct unlock code, you will need the radio serial number from your Fiat 500's radio unit.
You may be able to find it in one of two places. Common labels to look for: S/N, SN, Serial, Serial Number.
1. Find the S/N on Fiat 500's Display
Continental VP1/VP2 units in the Fiat 500 may support on-screen serial display — try holding buttons 1 and 6 while switching the radio on. Blaupunkt and Bosch units do not support this and must be physically removed.
2. The Serial Number on the Radio Sticker
The serial number is usually located on a label attached to the radio casing.
Step 1: Turn off the vehicle.
Step 2: After that, take off the surrounding panel.
Step 3: Then unscrew the radio brackets.
Step 4: Carefully pull the radio forward partially (Be careful not to damage the connections).
Step 5: Look for the serial number on the side of the unit.
Step 6: Write down the full number carefully and come back to our website so that we can generate your code.
Important: Don't mix the Serial Number for the Part Number!
Fiat Radio Removal Guide
The radio is usually held by screws behind the trim bezel. Remove the trim panel, unscrew the unit, and slide it out. The serial sticker is on the radio housing.
Example: Fiat 500 serial number label location
Usual Serial Prefixes on Fiat 500 Radios
To unlock your radio, identify the unit type: VP263 = Continental, BP6694 = Blaupunkt, CM#### = Bosch. The serial is on a sticker on the radio itself.
When the Fiat Stereo May Lock
Many drivers encounter security code prompts on their 500 after electrical work.
Below are the most typical situations when this can occur.
Radio Locked After Battery Swap
A replaced battery is the most common reason a Fiat 500 radio asks for a code.
Even a momentary voltage drop is enough to trigger the built-in anti-theft lock.
Other Situations That May Trigger the Code
- Jump-starting the vehicle can trigger anti-theft mode, requiring the PIN.
- A blown fuse can cause the Fiat 500 radio to lock.
- After an ECU or software reset, the radio may enter security mode.
- Installing a used head unit will trigger the original anti-theft code.
Things to Try First
There is a chance your Fiat 500 radio code is already somewhere in your car.
Before using a paid service, take a few minutes check the places below - you might be surprised.
Check the Manual or Documents
- Inside the glovebox, sometimes on a small card.
- In the vehicle handbook, often on a sticker page.
- In the spare wheel area, on a service sticker.
- In your maintenance booklet from the previous owner.
- On the radio unit itself, if it was removed before.
Getting It from the Dealer
Dealerships can retrieve your radio code by checking the VIN in their system.
They typically ask for registration and ID before sharing the unlock code.
This is the official way to restore access to the factory radio.
Things to Consider:
- Dealers frequently bill for the code (It may cost more than 100$).
- The lookup is often slower and may require waiting.
- You may need to contact service support during business hours.
- Some imported or older radios may need extra verification.
Entering the Security Code on the Vehicle
You need to input the code into the system to unlock your Fiat's radio.
When the unit is locked, the screen usually shows a code prompt.
You should use control knob, touchscreen, or radio presets to enter the numbers, then submit the code to reactivate the audio system.
Try not to make mistakes, because too many wrong attempts can disable your radio temporarily.
It allows a few missed shots before showing a LOCKED message.
You can try again by leaving the radio on for an hour or a set waiting period.
What Exactly is a Radio Anti-Theft Code?
A factory radio code, sometimes also known as an anti-theft code is a security PIN that unlocks your factory radio after it has been locked.
This anti-theft code is triggered when the radio detects a power interruption.
This system helps prevent stolen radios from working in other vehicles.
If power is cut, the radio disables itself and requires the unlock CODE before it can function normally.
Once the right combination is entered, the stereo is restored to normal operation.
500's Radio Code FAQs
Many factory radios use a security code, but some versions require one.
Whether a code is needed is determined by the installed head unit and the model year.
Yes. Each factory stereo has its own security code.
If you install a different radio, you'll need the code for that particular device.
Free unlock codes are not easy to find.
Some service documents may help, but most codes require a database lookup.
The only free possibility would be to check your car and its manual to see if you have it written down.