A simple explanation of chip keys, smart keys, key fobs and remotes, and why key type affects price.
Chip key
A chip key contains a transponder chip recognized by the vehicle at start. It usually needs both mechanical cutting and programming.
How to identify your key type
- if there is a metal blade and the key starts the vehicle, it may be a chip key
- if the vehicle unlocks and starts without inserting a key, it is often a smart key
- if there is a separate button remote, it may be a key fob or remote key
- the exact type is confirmed by model, year and key inspection
Smart key and key fob
A smart key often works without inserting the key into the lock. A key fob may control doors, alarm and start functions depending on the vehicle.
When programming is needed
If the key is mechanically cut but the vehicle does not start, the issue is often the transponder chip or smart key enrollment.
Programming feasibility depends on model, year, working-key availability and the vehicle security system.
Why price differs
- key electronics
- programming complexity
- vehicle make and year
- working spare key or full loss