Design: Compact black plastic fob (often with a sleek, rounded rectangular shape). It is a "smart" proximity key, meaning it supports passive entry (you can unlock doors by touching the handle sensor when the fob is nearby) and keyless ignition (push-button start).
Buttons: Exactly 3 buttons on the front, typically arranged in a standard layout (exact icons depend on the model year/region).
Internal Features:
Contains a transponder chip (e.g., HITAG 3 or similar) for immobilizer/security.
Battery: Usually CR2032 (replaceable by opening the case with a small screwdriver).
Often includes a detachable/emergency metal key blade (stored inside or attached via a loop) for manual door opening if the battery dies.