Volvo Troubleshooting Questions? Ask a Mechanic for Answers ASAP
Yes there is away to disable the siren. If you open up the drivers door and look on the side of the dash you will see a panel that can be removed. Look for fuse number 29. It should be a 5 amp fuse orange in color. Remove the fuse and this will disable the siren from making any more noise.
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Thank You Ryan K.