Guitar Hero III wireless guitar won't work on my PS3. Any suggestions?

May be...

Check the batteries, if not that, check your adapter, try to re-sync it.





PSN: Battered_Puppet

is it a ps3 one or ps2 guitar if ps2 get ps2 to ps3 controller adaptor there a bit pricey though

duh if you read the question he said ps3 he was not asking any thing about a ps2 (♥)

See if you can trade it in for a new one.