How do i reset chevy hhr radio?

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Mike E January 7, 2021
To reset the Chevy HHR radio You will need to turn the ignition to the on position then turn on the radio. Once it is on hold down the MIN button on the radio until it beeps. You will now see the 0000 display on the radio face. Press the MIN button again until the last two digits of Your security code display on the face instead of 0000. Now press the hour button until the first two buttons of Your security code appear. Now You the SEC button to select the code and the volume up button to enter it. Your radio will go blank, and then it will reset. This may take a min to finish.
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Eugene C Winship December 28, 2022
2008 chev.hhrthe radio says LOCKED on it how do I unlock it
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Troy C. April 9, 2020
To reset your chevy hhr radio to shut all electrical accessories off especially the radio when boosting from another battery source. Turn on the ignition (key) only after connection is made. I would power-down everything for a few minutes by disconnecting the battery ground strap (trunk). Power back up again and see what happens. Radio pre-sets will be lost and will have to be re-set and dic settings may go into default requiring your personal selections again.
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