How to Locate the Serial Number on a Quattroporte
To generate the right security code, you first need the serial number from the radio.
Depending on your vehicle model, you can find it shown on the display or locate it on the unit.
Common abbreviations are: S/N / SN / Serial / Serial Num. / Serial Number.
These are the typical ways to find it:
1. View the Serial Number on Maserati Quattroporte's Display
The Maserati Quattroporte serial number method depends on the generation.
Quattroporte 2004–2012 (V Generation)
Uses a Becker radio (similar to older Porsche models). You can try to access the serial via the Becker CDR-220 service menu:
- Turn radio OFF, press and hold TP for 10 seconds.
- Turn radio ON — display shows "Becker 1".
- Rotate the right knob until the serial number appears.
If the service menu is inaccessible, the serial is on a label on the radio chassis — physical removal is required. See the removal guide below.
Quattroporte 2013–2016 (VI Generation) — Uconnect 8.4" Classic
This generation uses the Fiat/Chrysler platform with Uconnect 8.4" Classic. Dealer Mode is accessible:
Method 1 – Climate Buttons: Hold Fan Up, Fan Down, and Front Defrost simultaneously for 5 seconds. Navigate: System Info → Serial Number.
Method 2 – Temperature Buttons: Hold Temp Up + Temp Down for 5 seconds, then navigate to the serial number via the Engineering Menu.
Quattroporte 2017+ — Uconnect 8.4" NEW
Press the bottom-left and bottom-right corners of the screen bezel together until Dealer Mode opens. Navigate: System Info → Serial Number.
The serial number is a 14-character alphanumeric code (e.g. T00AM394958584) on Uconnect-equipped models.
2. Locating your Serial Number on the Radio Unit
To find the serial number, you'll need to pull out the radio unit from the dashboard.
- Start by turning off the vehicle and taking off the dashboard bezel.
- Next, unscrew the mounting bolts and pull the unit forward to check the sticker on the side of the radio. Pay attention not to damage the cables that the unit is connected to.
- Write down the serial number carefully and then come back to the website.
- Know that serial number and part number are not the same thing. You can find both of them on the sticker, and you only care for the serial.
Physical Radio Removal for Maserati Quattroporte
To access the serial number on your Maserati Quattroporte radio:
- Remove the center console trim – Carefully pry up the trim surrounding the radio using a plastic trim removal tool.
- Disconnect any wiring – Unplug the cup holder light wire if present.
- Unscrew the mounting bolts – Remove the 9 bolts securing the radio to the dash frame.
- Use radio removal tools – Use Ford radio removal tools to slide the radio forward.
- Locate the serial number – Look for a white or silver sticker on the top or side of the unit.
Example: Maserati Quattroporte serial number label location
Common Serial Prefixes on Maserati Quattroporte Factory Units
The radio may have a Harman VP4 (QNG/BE prefix) or Continental (A2C prefix) unit. The serial label is on the body of the unit.
Common Maserati Quattroporte Radio Code Situations
Your radio may request a security code when it detects a power interruption.
These are the some typical scenarios that activate the radio code prompt.
Lock After a Battery Change
After a battery replacement, your radio may show a CODE message.
This happens because the radio loses power, which triggers the security lock.
More Situations That Can Lock Your Quattroporte's Radio
- After an ECU reset, software update, or electrical repair, some Maserati Quattroporte radios ask for a code.
- When the radio is replaced, it usually requires the original code.
- After a jump-start, the radio may reset and request a security code.
- If a power circuit is interrupted, the radio can enter anti-theft mode.
Places to Check Before Buying a Radio Code
Before you pay for it, you should check a few places where the code is often already written down.
Some owners find their Maserati Quattroporte radio code without needing any tools or paperwork.
Here are the easiest things to check first.
Search the Car Interior
- On the radio unit itself, if it was serviced earlier.
- In the vehicle handbook, often on a code card.
- Inside the glovebox, sometimes on a small card.
- In the boot compartment, on a radio label.
- In your car paperwork from the previous owner.
Through the Dealer
A Maserati dealer can usually retrieve the radio code using your Quattroporte's vehicle identification number.
In most cases, you need to visit or contact them and prove ownership.
Once verified, they can generate the original anti-theft code for your radio.
Possible Drawbacks:
- The process can take days depending on the model and database.
- You usually need to visit in person and bring ID.
- Some older Maserati Quattroporte radios may require manual lookup.
- Dealers often charge a fee for the lookup service and it's sometimes more than 100$.
How to Enter the Radio Code on Maserati Quattroporte
Once you have the Maserati's security code, you can enter it using the infotainment controls.
Most radios display a "CODE", "ENTER CODE", or "----" message when they are locked.
You typically use the preset buttons to input the code.
After entering the full code, the radio will restore normal operation.
To enter your Maserati Quattroporte unlock code:
- Turn the ignition ON – The radio displays "CODE" or "----".
- Use preset radio buttons 1-4 to enter your 4-digit code. Press button "1" multiple times until the first correct digit appears, button "2" for the second digit, button "3" for the third digit, and button "4" for the fourth digit.
- The radio unlocks automatically once all 4 digits are entered correctly.
Lockout Warning: After multiple incorrect attempts, the radio may lock for 60 minutes. Keep the ignition ON during the waiting period.
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 keeping the ignition on for 60 minutes or a set waiting period.
Radio Code - Quick Explanation
When the radio is cut off from power, it immediately locks and requires an unlock code to be entered before it can be operated.
A radio code (also known as an anti-theft code) is a built-in security system integrated into factory car stereos to prevent theft.
This system makes sure that a stolen radio becomes useless without the correct code.
Entering the right code returns full audio and media functionality.
Maserati Quattroporte Radio Code - Frequently Asked Questions
Not all of them require a radio code, but many factory radios use it as an security measure.
Certain production series may not require a code depending on the radio unit.
Free codes are uncommon.
You might find the code in the owner's booklet or from a service center, but most require a serial number lookup.
Yes. Each head unit has its own radio code.
A second-hand radio will need its correct security code to work.