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Problems/Service/RepairsIf you have a problem with your HHR, want a tip on repairing or performing a particular service to you HHR here is the place to post!
Yes they screw off, it is a VERY coarse thread, mine were very tight so I wrapped the the knobs in 'inner tube rubber' (or thick leather) & used channel-lok pliers to carefully wind them off without marring the plastic knob..