Would the overdrive button cause the gear shift mechanism to lock you 2005 Hyundai Accent?

The overdrive button in a 2005 Hyundai Accent is designed to enhance fuel efficiency by allowing the transmission to shift into a higher gear. It should not cause the gear shift mechanism to lock. If you're experiencing a locked gear shift, it may be related to other issues such as a faulty shift interlock system or problems with the transmission itself. It's advisable to have the vehicle inspected by a qualified mechanic to diagnose the issue accurately.