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Ask Don 'Mo Lurch' Your Own Que...
Don 'Mo Lurch'
Don 'Mo Lurch', Auto Mech / Electronics
Category: Chevy
Satisfied Customers: 20753
Experience:  Chevrolet Cert., Heavy Line Mech, Race Shop Owner, Mobile Electronics.
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what is the radio unlock code for a 2004 chevy cavalier

Customer Question

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Submitted: 10 years ago.
Category: Chevy
Expert:  Don 'Mo Lurch' replied 10 years ago.

If it is a Factory Radio there is No Code. You have to have the Chevrolet Dealer Connect the Tech 2 Scan Tool to Reprogram it.
Try:
Disconnect Positive + Battery Cable
Wait 2 - 3 Minutes.
Reconnect Battery.
Turn Ignition ON
Turn Radio On.

If that does Not work, then Dealer will have to reprogram

Customer: replied 10 years ago.
please clarify. i asked what IS the radio unlock code, not WHERE do i get the code. if you did not have a code for me, then there was no answer.
Expert:  Don 'Mo Lurch' replied 10 years ago.

You do not understand...........
If you have the Factory Radio:
It is a Class 2 DATA Radio
Those GM Radios do NOT have Codes.
It has to be Reprogrammed at the Dealer by the Scan Tool

Class 2 DATA Radios store information about the Vehicle & is Uploaded to GM ( V.I. N., Year, Make & Model , etc. )