cruzrtwdgt,
I agree that it may be a safety issue to you an me, but to NHTSA that is a minor incovenience not a safety issue. NHTSA only considers things that cause emminent danger like brake failures, ruptured gas tanks, fires, etc.
If you turn signals are not functioning or operating irradically, that is no excuse for changing lanes without looking. Just because you use the turn signal does not mean it's proper for you to turn into someones lane without giving proper clearance. So if you do that, the turn signal is not make it any safer. And if you know your signals don't work then it would prudent to ensure the lane is clear before you enter it.
If kyour brakes fail, there is little you can do to make that situation less dangerous. If you vehicle catches fire, there is nothing you should have done to prevent that. If your wheel falls off because the spinle broke, there is nothing that you could have done to prevent that. Those are the things that NHTSA monitors for frequent failure rates and then investigates for possible recall.
PS: The problem is caused by insufficient slack in the wireing harness that goes up the steering column. When the wheel is tilted, it can pull on the wires an pull the main connector (called the multi-switch connector) apart, and even pull wires and pins out of the connector, and causing irratic operation of all the accessories that go through the connector. The cure is to pull up a little more slack in the wiring harness and if necessary hold it in place with a wire-tie.
...Rich