Starter Motor.
A device, power by electricity, pneumatic, or hydraulics, used to rotate / crank a vehicle's engine as to initiate the engine's operation under its own power. From 11/06/2015.

Starter Motor

Fits Elantra GT

Elantra GT; From 11/6/15.
Starter Motor - Repair or Replace
You turn the key, hear a loud sharp CLICK, and your engine doesn't crank—sounds like your 2010 Hyundai Elantra may need its starter replaced. If any of these symptoms sound familiar, contact our service department.