How do I get the security code for a car stereo?
Answer
The code is tied to the stereo's serial number, and a franchised dealer for the vehicle brand can look it up — usually free or for a small fee — if you can show the car is yours. Some makes print the code on a card in the handbook or on a sticker in the glovebox, so check those first.
Before you start: stop right away if…
- Repeated wrong codes can lock some units permanently, requiring replacement.
- Avoid websites offering instant radio codes for payment. Dealers supply these legitimately and often free.
Follow these steps
Stop guessing
Wrong entries trigger longer lockouts and some units lock permanently. Stop after one attempt if you are unsure.
You should see: No further lockout is triggered.
Look for the code card
Check the handbook wallet, the service book, the glovebox, and any stickers around the boot or under the seats.
You should see: You find the code, or rule that out.
Find the stereo serial number
Some units display it on screen after failed attempts or when a button combination is held. Otherwise the dealer can read it from the vehicle identification number.
You should see: You have the serial or the vehicle identification number.
Contact a franchised dealer
Call a dealer for the vehicle's brand with the vehicle identification number and proof of ownership, and ask for the radio code.
You should see: They supply the code or explain their process.
Enter it once, carefully
Enter the code exactly as given. If the unit is in a lockout period, wait it out first.
You should see: The stereo unlocks and works normally.
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Extra tips
What to look for: A code card in the handbook wallet, a sticker in the glovebox or on the boot lid, and whether the screen shows the serial number after a set number of failed attempts.
Before you change anything: Stop entering guesses. Many units lock out for progressively longer periods, and some permanently after a set number of wrong codes.
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